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194 relations: Acer Inc., Acoustic coupler, Amazon Silk, Analog-to-digital converter, AOL, Apple II, Application-specific integrated circuit, Asymmetric digital subscriber line, AT&T, Bandwidth (signal processing), Baseband, Baud, BBN Technologies, Bell 101 modem, Bell 103 modem, Bell 202 modem, Bell 212A, Bell Labs, Bit rate, Broadband, Bulletin board system, Business telephone system, Cable modem, CAN bus, Canada, Carrier frequency, Carrier wave, Carterfone, CBBS, Chipset, Cisco Systems, Coaxial cable, Codie award, Command and Data modes (modem), Computer, Computer hardware, Computer network, Conexant, Consumer Technology Association, Convolutional code, Creative Technology, Current loop, CXR Anderson Jacobson, Data-rate units, Dave Forney, DC-BUS, Demodulation, Device driver, Dial-up Internet access, Dialer, ..., Diamond Multimedia, Digital data, Digital Signal 0, Digital signal processor, Digital-to-analog converter, Duplex (telecommunications), Dynamic Host Configuration Protocol, Electronic serial number, Email, Ethernet, Ethernet over coax, Evolution-Data Optimized, Expansion card, ExpressCard, Fall back and forward, Fax, Fax demodulator, FidoNet, File transfer, Firewall (computing), Flat rate, Foreign exchange service (telecommunications), Forward error correction, Frequency-division multiple access, Frequency-shift keying, G.hn, General Packet Radio Service, Gottfried Ungerboeck, GSM, Handshaking, Harmonic, Hayes command set, Hayes Microcomputer Products, Hertz, High Speed Packet Access, Huawei E220, IBM 2741, IBM Research, IEEE 802.11, Image file formats, International Telecommunication Union, Internet, Internet service provider, ITU-T, Laptop, Light-emitting diode, Linux, List of interface bit rates, List of ITU-T V-series recommendations, Local area network, Local Interconnect Network, Lucent, Microcomputer, Microcontroller, Microsoft Windows, Microwave, Minitel, Mobile broadband, Mobile broadband modem, Mobile phone, Modulation, Motorola, Multiplexing, Multiprotocol Encapsulation over ATM, Netgear, Network address translation, Networking hardware, News agency, Noisy-channel coding theorem, Notebook, Novation CAT, Null modem, Online service provider, Opera (web browser), Orthogonal frequency-division multiplexing, PC Card, Pennywhistle modem, Personal Computer Memory Card International Association, Phase-shift keying, Power-line communication, Prentice, Public switched telephone network, Pulse-code modulation, Quadrature amplitude modulation, Racal, Radio, Radio modem, RadioShack, Registered jack, Removable User Identity Module, Residential gateway, Rockwell International, Router (computing), RS-232, S-100 bus, Satellite modem, Satellite television, Semi-Automatic Ground Environment, Serial Peripheral Interface, Serial port, Server (computing), Signal, SIGSALY, Software, Sphere packing, SRI International, StarTech.com, Subscriber identity module, Subsidy Password, Supra, Inc., SupraFAXModem 14400, Symbol rate, Sysop, Telebit, Telegraphy, Telephone exchange, Telephone line, Telephony, Teleprinter, Teletype Model 33, TP-Link, Trellis modulation, Twisted pair, UMTS, Unit of time, Universal asynchronous receiver-transmitter, Unix, USB, USRobotics, UUCP, V.92, Viterbi algorithm, Vocoder, Voice modem command set, Wake-on-ring, Western Electric, Wi-Fi, Wikibooks, WiMAX, Yamar Electronics, Zoom Telephonics, Zyxel, 3Com, 56 kbit/s line. Expand index (144 more) »
Acer Inc.
Acer Inc. (lit. Hongji Corporation Ltd.) is a Taiwanese multinational hardware and electronics corporation, specializing in advanced electronics technology, headquartered in Xizhi, New Taipei City, Taiwan.
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Acoustic coupler
In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone.
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Amazon Silk
Amazon Silk is a web browser developed by Amazon.
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Analog-to-digital converter
In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.
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AOL
AOL (formerly a company known as AOL Inc., originally known as America Online, and stylized as Aol.) is a web portal and online service provider based in New York.
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Apple II
The Apple II (stylized as Apple.
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Application-specific integrated circuit
An Application-Specific Integrated Circuit (ASIC), is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use.
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Asymmetric digital subscriber line
Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.
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AT&T
AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas.
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Bandwidth (signal processing)
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
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Baseband
Baseband is a signal that has a very narrow and near-zero frequency range, i.e. a spectral magnitude that is nonzero only for frequencies in the vicinity of the origin (termed f.
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Baud
In telecommunication and electronics, baud (symbol: Bd) is a common measure of the speed of communication over a data channel.
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BBN Technologies
BBN Technologies (originally Bolt, Beranek and Newman) is an American high-technology company which provides research and development services.
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Bell 101 modem
The Bell 101 dataset or Bell 101 modem was the first commercial modem for computers, released by AT&T Corporation in 1958 for use by SAGE and in 1959 made commercial shortly after AT&T's Bell Labs announced their 110 baud modulation frequencies.
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Bell 103 modem
The Bell 103 modem or Bell 103 dataset was the second commercial modem for computers, released by AT&T Corporation in 1962.
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Bell 202 modem
The Bell 202 modem was an early (1976) modem standard developed by the Bell System.
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Bell 212A
The Bell 212A modulation scheme defined a standard method of transmitting full-duplex asynchronous serial data at 1.2 kbit/s over analogue transmission lines.
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Bell Labs
Nokia Bell Labs (formerly named AT&T Bell Laboratories, Bell Telephone Laboratories and Bell Labs) is an American research and scientific development company, owned by Finnish company Nokia.
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Bit rate
In telecommunications and computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time.
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Broadband
In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals and traffic types.
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Bulletin board system
A bulletin board system or BBS (also called Computer Bulletin Board Service, CBBS) is a computer server running software that allows users to connect to the system using a terminal program.
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Business telephone system
A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.
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Cable modem
A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial (HFC) and radio frequency over glass (RFoG) infrastructure.
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CAN bus
A Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer.
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Canada
Canada is a country located in the northern part of North America.
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Carrier frequency
In telecommunication systems, Carrier frequency is a technical term used to indicate.
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Carrier wave
In telecommunications, a carrier wave, carrier signal, or just carrier, is a waveform (usually sinusoidal) that is modulated (modified) with an input signal for the purpose of conveying information.
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Carterfone
The Carterfone is a device invented by Thomas Carter.
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CBBS
CBBS (Computerized Bulletin Board System) was a computer program created by Ward Christensen to allow him and other computer hobbyists to exchange information between each another.
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Chipset
In a computer system, a chipset is a set of electronic components in an integrated circuit known as a "Data Flow Management System" that manages the data flow between the processor, memory and peripherals.
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Cisco Systems
Cisco Systems, Inc. is an American multinational technology conglomerate headquartered in San Jose, California, in the center of Silicon Valley, that develops, manufactures and sells networking hardware, telecommunications equipment and other high-technology services and products.
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Coaxial cable
Cross-sectional view of a coaxial cable Coaxial cable, or coax (pronounced), is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.
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Codie award
The CODiE Awards are annual awards given within the software industry.
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Command and Data modes (modem)
Command and Data modes refer to the two modes in which a computer modem may operate.
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Computer
A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
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Computer hardware
Computer hardware includes the physical parts or components of a computer, such as the central processing unit, monitor, keyboard, computer data storage, graphic card, sound card and motherboard.
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Computer network
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.
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Conexant
Conexant Systems, Inc. was an American-based software developer and fabless semiconductor company.
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Consumer Technology Association
The Consumer Technology Association (CTA), formerly Consumer Electronics Association (CEA), is a standards and trade organization for the consumer electronics industry in the United States.
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Convolutional code
In telecommunication, a convolutional code is a type of error-correcting code that generates parity symbols via the sliding application of a boolean polynomial function to a data stream.
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Creative Technology
Creative Technology Ltd. is a Singapore-based global company headquartered in Jurong East, Singapore.
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Current loop
In electrical signalling an analog current loop is used where a device must be monitored or controlled remotely over a pair of conductors.
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CXR Anderson Jacobson
CXR Anderson Jacobson, also known as CXR Networks, is a vendor of communications equipment.
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Data-rate units
In telecommunications, data-transfer rate is the average number of bits (bitrate), characters or symbols (baudrate), or data blocks per unit time passing through a communication link in a data-transmission system.
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Dave Forney
George David "Dave" Forney, Jr. (born March 6, 1940) is an American electrical engineer who made contributions in telecommunication system theory, specifically in coding theory and information theory.
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DC-BUS
DC-BUS is technology for reliable and economical communication over noisy DC or AC power lines.
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Demodulation
Demodulation is extracting the original information-bearing signal from a carrier wave.
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Device driver
In computing, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer.
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Dial-up Internet access
Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.
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Dialer
A dialer (American English) or dialler (British English) is an electronic device that is connected to a telephone line to monitor the dialed numbers and alter them to seamlessly provide services that otherwise require lengthy National or International access codes to be dialed.
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Diamond Multimedia
Diamond Multimedia is an American company that specializes in many forms of multimedia technology.
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Digital data
Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.
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Digital Signal 0
Digital Signal 0 (DS0) is a basic digital signaling rate of 64 kilobits per second (kbit/s), corresponding to the capacity of one analog voice-frequency-equivalent communication channel.
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Digital signal processor
A digital signal processor (DSP) is a specialized microprocessor (or a SIP block), with its architecture optimized for the operational needs of digital signal processing.
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Digital-to-analog converter
In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal.
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Duplex (telecommunications)
A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions.
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Dynamic Host Configuration Protocol
The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks.
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Electronic serial number
Electronic serial numbers (ESNs) were created by the U.S. Federal Communications Commission (FCC) to uniquely identify mobile devices, from the days of AMPS in the United States starting in the early 1980s.
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Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices.
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Ethernet
Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).
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Ethernet over coax
Ethernet over Coax (EoC) is a family of technologies that supports the transmission of Ethernet frames over coaxial cable.
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Evolution-Data Optimized
Evolution-Data Optimized (EV-DO, EVDO, etc.) is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access.
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Expansion card
In computing, the expansion card, expansion board, adapter card or accessory card is a printed circuit board that can be inserted into an electrical connector, or expansion slot, on a computer motherboard, backplane or riser card to add functionality to a computer system via the expansion bus.
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ExpressCard
ExpressCard, initially called NEWCARD, is an interface to connect peripheral devices to a computer, usually a laptop computer.
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Fall back and forward
Fall back is a feature of a modem protocol in data communication whereby two communicating modems which experience data corruption (due to line noise, for example) can renegotiate with each other to use a lower-speed connection.
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Fax
Fax (short for facsimile), sometimes called telecopying or telefax (the latter short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device.
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Fax demodulator
A fax demodulator is a device used to intercept fax messages by listening in on a telephone line or radio signal.
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FidoNet
Traditional FidoNet logo by John Madil FidoNet is a worldwide computer network that is used for communication between bulletin board systems (BBSes).
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File transfer
File transfer is the transmission of a computer file through a communication channel from one computer system to another.
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Firewall (computing)
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
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Flat rate
A flat fee, also referred to as a flat rate or a linear rate, refers to a pricing structure that charges a single fixed fee for a service, regardless of usage.
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Foreign exchange service (telecommunications)
Foreign exchange service (FX) is a telecommunications network service in which a telephone in a given exchange area is connected, via a private line (as opposed to a trunk line), to a telephone exchange or central office in another foreign exchange, rather than the local exchange area where the device is located.
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Forward error correction
In telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels.
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Frequency-division multiple access
Frequency division multiple access (FDMA) is a channel access method used in multiple-access protocols as a channelization protocol.
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Frequency-shift keying
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal.
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G.hn
G.hn is a specification for home networking with data rates up to 2 Gbit/s and operation over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber.
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General Packet Radio Service
General Packet Radio Service (GPRS) is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications (GSM).
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Gottfried Ungerboeck
Gottfried Ungerboeck (born 15 March 1940, Vienna) is an Austrian communications engineer.
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GSM
GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991.
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Handshaking
In telecommunications, a handshake is an automated process of negotiation between two communicating participants (example "Alice and Bob") through the exchange of information that establishes the protocols of a communication link at the start of the communication, before full communication begins.
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Harmonic
A harmonic is any member of the harmonic series, a divergent infinite series.
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Hayes command set
The Hayes command set is a specific command language originally developed by Dennis Hayes for the Hayes Smartmodem 300 baud modem in 1981.
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Hayes Microcomputer Products
Hayes Microcomputer Products was a U.S.-based manufacturer of modems.
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Hertz
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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High Speed Packet Access
High Speed Packet Access (HSPA) is an amalgamation of two mobile protocols, High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA), that extends and improves the performance of existing 3G mobile telecommunication networks using the WCDMA protocols.
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Huawei E220
The Huawei E220 is a Huawei HSDPA access device (modem) manufactured by Huawei and notable for using the USB interface (USB modem).
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IBM 2741
The IBM 2741 is a printing computer terminal that was introduced in 1965.
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IBM Research
IBM Research is IBM's research and development division.
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IEEE 802.11
IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communication in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands.
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Image file formats
Image file formats are standardized means of organizing and storing digital images.
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International Telecommunication Union
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
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Internet
The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.
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Internet service provider
An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.
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ITU-T
The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications.
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Laptop
A laptop, also called a notebook computer or just notebook, is a small, portable personal computer with a "clamshell" form factor, having, typically, a thin LCD or LED computer screen mounted on the inside of the upper lid of the "clamshell" and an alphanumeric keyboard on the inside of the lower lid.
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Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source.
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Linux
Linux is a family of free and open-source software operating systems built around the Linux kernel.
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List of interface bit rates
This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.
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List of ITU-T V-series recommendations
The ITU-T V-Series Recommendations on Data communication over the telephone network specify the protocols that govern approved modem communication standards and interfaces.
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Local area network
A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.
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Local Interconnect Network
LIN (Local Interconnect Network) is a serial network protocol used for communication between components in vehicles.
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Lucent
Lucent Technologies, Inc., was an American multinational telecommunications equipment company headquartered in Murray Hill, New Jersey, in the United States.
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Microcomputer
A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).
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Microcontroller
A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.
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Microsoft Windows
Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.
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Microwave
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.
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Minitel
The Minitel was a Videotex online service accessible through telephone lines, and is considered one of the world's most successful pre-World Wide Web online services.
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Mobile broadband
Mobile broadband is the marketing term for wireless Internet access through a portable modem, USB wireless modem, tablet/smartphone or other mobile device.
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Mobile broadband modem
A mobile broadband modem, also known as a connect card or data card, is a type of modem that allows a personal computer or a router to receive Internet access via a mobile broadband connection instead of using telephone or cable television lines.
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Mobile phone
A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.
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Modulation
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.
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Motorola
Motorola, Inc. was an American multinational telecommunications company founded on September 25, 1928, based in Schaumburg, Illinois.
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Multiplexing
In telecommunications and computer networks, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium.
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Multiprotocol Encapsulation over ATM
Multiprotocol Encapsulation over ATM is specified in RFC 2684.
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Netgear
Netgear Inc. (stylized NETGEAR) is a multinational computer networking company based in San Jose, California, with offices in about 25 other countries.
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Network address translation
Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device.
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Networking hardware
Networking hardware, also known as network equipment or computer networking devices, are physical devices which are required for communication and interaction between devices on a computer network.
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News agency
A news agency is an organization that gathers news reports and sells them to subscribing news organizations, such as newspapers, magazines and radio and television broadcasters.
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Noisy-channel coding theorem
In information theory, the noisy-channel coding theorem (sometimes Shannon's theorem or Shannon's limit), establishes that for any given degree of noise contamination of a communication channel, it is possible to communicate discrete data (digital information) nearly error-free up to a computable maximum rate through the channel.
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Notebook
A notebook (notepad, writing pad, drawing pad, legal pad) is a small book or binder of paper pages, often ruled, used for purposes such as recording notes or memoranda, writing, drawing or scrapbooking.
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Novation CAT
Novation was an early modem manufacturer whose CAT series were popular in the early home computer market in the late 1970s and early 1980s, notably on the Apple II.
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Null modem
Null modem is a communication method to directly connect two DTEs (computer, terminal, printer, etc.) using an RS-232 serial cable.
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Online service provider
An online service provider can, for example, be an Internet service provider, an email provider, a news provider (press), an entertainment provider (music, movies), a search engine, an e-commerce site, an online banking site, a health site, an official government site, social media, a wiki, or a Usenet newsgroup.
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Opera (web browser)
Opera is a web browser for Windows, macOS, and Linux operating systems developed by Opera Software AS.
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Orthogonal frequency-division multiplexing
In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies.
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PC Card
In computing, PC Card is a configuration for computer parallel communication peripheral interface, designed for laptop computers.
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Pennywhistle modem
The Pennywhistle was an early acoustic coupler modem originally designed and built by Lee Felsenstein in 1973, and later commercialized and offered for sale in 1976.
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Personal Computer Memory Card International Association
The Personal Computer Memory Card International Association (PCMCIA) was a group of computer hardware manufacturers, operating under that name from 1989 to 2009/2010.
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Phase-shift keying
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave).
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Power-line communication
Power-line communication (PLC) carries data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers.
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Prentice
Prentice is both a given name and a surname.
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Public switched telephone network
The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.
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Pulse-code modulation
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals.
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Quadrature amplitude modulation
Quadrature amplitude modulation (QAM) is the name of a family of digital modulation methods and a related family of analog modulation methods widely used in modern telecommunications to transmit information.
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Racal
Racal Electronics plc was once the third largest British electronics firm.
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Radio
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.
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Radio modem
Radio modems transfer data wirelessly across a range of up to tens of kilometres.
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RadioShack
RadioShack, formally RadioShack Corporation, is the trade name of an American retailer founded in 1921, which operates a chain of electronics stores.
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Registered jack
A registered jack (RJ) is a standardized telecommunication network interface for connecting voice and data equipment to a service provided by a local exchange carrier or long distance carrier.
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Removable User Identity Module
Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks.
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Residential gateway
In telecommunications networking, a residential gateway (more commonly known as a home router or home gateway) is a device that allows a local area network (LAN) to connect to a wide area network (WAN) via a modem.
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Rockwell International
Rockwell International was a major American manufacturing conglomerate in the latter half of the 20th century, involved in aircraft, the space industry, both defense-oriented and commercial electronics, automotive and truck components, printing presses, valves and meters, and industrial automation.
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Router (computing)
A router is a networking device that forwards data packets between computer networks.
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RS-232
In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.
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S-100 bus
The S-100 bus or Altair bus, IEEE696-1983 (withdrawn), was an early computer bus designed in 1974 as a part of the Altair 8800.
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Satellite modem
A satellite modem or satmodem is a modem used to establish data transfers using a communications satellite as a relay.
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Satellite television
Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.
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Semi-Automatic Ground Environment
The Semi-Automatic Ground Environment (SAGE, a name selected to mean "wise") was a system of large computers and associated networking equipment that coordinated data from many radar sites and processed it to produce a single unified image of the airspace over a wide area.
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Serial Peripheral Interface
The Serial Peripheral Interface (SPI) is a synchronous serial communication interface specification used for short distance communication, primarily in embedded systems.
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Serial port
In computing, a serial port is a serial communication interface through which information transfers in or out one bit at a time (in contrast to a parallel port).
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Server (computing)
In computing, a server is a computer program or a device that provides functionality for other programs or devices, called "clients".
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Signal
A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".
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SIGSALY
In cryptography, SIGSALY (also known as the X System, Project X, Ciphony I, and the Green Hornet) was a secure speech system used in World War II for the highest-level Allied communications.
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Software
Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.
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Sphere packing
In geometry, a sphere packing is an arrangement of non-overlapping spheres within a containing space.
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SRI International
SRI International (SRI) is an American nonprofit research institute headquartered in Menlo Park, California.
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StarTech.com
StarTech.com is an ISO 9001 registered technology manufacturer, specializing in hard-to-find connectivity parts, primarily used in the information technology and professional A/V industries.
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Subscriber identity module
A subscriber identity module or subscriber identification module (SIM), widely known as a SIM card, is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers).
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Subsidy Password
The term Subsidy Password is used by Motorola and other handset manufacturers to refer to the 8-digit (or 16-digit code for newer phones such as the Motorola K1) unlock code necessary to remove the operator lock (also known as subsidy lock) from cell phones.
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Supra, Inc.
Supra, Inc., previously known as Supra Corporation, were best known as manufacturers of modems for personal computers, but also produced a range of hardware for the Amiga and Atari ST, including hard drives, SCSI controllers, memory boards, and processor accelerators.
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SupraFAXModem 14400
The SupraFAXModem 14400 was a v.32bis modem.
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Symbol rate
In digital communications, symbol rate, also known as baud rate and modulation rate, is the number of symbol changes, waveform changes, or signaling events, across the transmission medium per time unit using a digitally modulated signal or a line code.
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Sysop
A sysop (an abbreviation of system operator) is an administrator of a multi-user computer system, such as a bulletin board system (BBS) or an online service virtual community.
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Telebit
Telebit was a US-based modem manufacturer, known for their TrailBlazer series of high-speed modems.
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Telegraphy
Telegraphy (from Greek: τῆλε têle, "at a distance" and γράφειν gráphein, "to write") is the long-distance transmission of textual or symbolic (as opposed to verbal or audio) messages without the physical exchange of an object bearing the message.
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Telephone exchange
A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.
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Telephone line
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.
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Telephony
Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties.
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Teleprinter
A teleprinter (teletypewriter, Teletype or TTY) is an electromechanical typewriter that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations.
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Teletype Model 33
The Teletype Model 33 is an electromechanical teleprinter designed for light-duty office.
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TP-Link
TP-Link (stylized as tp-link), is a Chinese manufacturer of computer networking products based in Shenzhen, Guangdong, China.
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Trellis modulation
In telecommunication, trellis modulation (also known as trellis coded modulation, or simply TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines.
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Twisted pair
Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.
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UMTS
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard.
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Unit of time
A unit of time or time unit is any particular time interval, used as a standard way of measuring or expressing duration.
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Universal asynchronous receiver-transmitter
A universal asynchronous receiver-transmitter (UART) is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.
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Unix
Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.
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USB
USB (abbreviation of Universal Serial Bus), is an industry standard that was developed to define cables, connectors and protocols for connection, communication, and power supply between personal computers and their peripheral devices.
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USRobotics
U.S. Robotics Corporation, often called USR, is a company that produces USRobotics computer modems and related products.
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UUCP
UUCP is an abbreviation of Unix-to-Unix Copy.
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V.92
V.92 is an ITU-T recommendation, titled Enhancements to Recommendation V.90, that establishes a modem standard allowing near 56 kb/s download and 48 kb/s upload rates.
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Viterbi algorithm
The Viterbi algorithm is a dynamic programming algorithm for finding the most likely sequence of hidden states—called the Viterbi path—that results in a sequence of observed events, especially in the context of Markov information sources and hidden Markov models.
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Vocoder
A vocoder (a portmanteau of voice encoder) is a category of voice codec that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption, voice transformation, etc.
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Voice modem command set
A voice modem is an analog telephone data modem with a built-in capability of transmitting and receiving voice recordings over the phone line.
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Wake-on-ring
Wake-on-Ring (WOR), sometimes referred to as Wake-on-Modem (WOM), is a specification that allows supported computers and devices to "wake up" or turn on from a sleeping, hibernating or "soft off" state (e.g. ACPI state G1 or G2), and begin operation.
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Western Electric
Western Electric Company (WE, WECo) was an American electrical engineering and manufacturing company that served as the primary supplier to AT&T from 1881 to 1996.
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Wi-Fi
Wi-Fi or WiFi is technology for radio wireless local area networking of devices based on the IEEE 802.11 standards.
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Wikibooks
Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content e-book textbooks and annotated texts that anyone can edit.
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WiMAX
WiMAX (Worldwide Interoperability for Microwave Access) is a family of wireless communication standards based on the IEEE 802.16 set of standards, which provide multiple physical layer (PHY) and Media Access Control (MAC) options.
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Yamar Electronics
Yamar specializes in semiconductor smart transceivers for communication over noisy AC and DC battery power lines.
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Zoom Telephonics
Zoom Telephonics, Inc. designs, produces, and markets, and supports cable modems and other communications products with emphasis on Internet access products and Wi-Fi products.
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Zyxel
Zyxel Communications Corp.
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3Com
3Com Corporation was a digital electronics manufacturer best known for its computer network products.
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56 kbit/s line
A 56 kbit/s line is a digital connection capable of carrying 56 kilobits per second (kbit/s), or 56,000 bit/s, the data rate of a classical single channel digital telephone line in North America.
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References
[1] https://en.wikipedia.org/wiki/Modem
