113 relations: Amateur radio, ANSI escape code, AppleTalk, ASCII, Asynchronous serial communication, Barcode reader, Baud, Baudot code, Bit, Bit banging, Bit numbering, Bit rate, Bluetooth, Byte, Central processing unit, Cisco Systems, COM (hardware interface), Communication protocol, Computer mouse, Computer network, Computer repair technician, Computer terminal, Computing, Control character, Crystal oscillator, D-subminiature, Data buffer, Data circuit-terminating equipment, Data terminal equipment, Digi International, Digital camera, Digital Equipment Corporation, DOS, Electrical connector, Error detection and correction, Escape sequence, Ethernet, Expansion card, Firewall (computing), Firmware, Global Positioning System, Graphing calculator, GSM, Handshaking, Hard disk drive, Home computer, IBM 2741, IBM Personal Computer, IBM Personal Computer/AT, IEEE 1394, ..., In-band signaling, Input/output, Integrated circuit, Kermit (protocol), Light-emitting diode, Linux, Liquid-crystal display, Load balancing (computing), Macintosh, Microcomputer, Microcontroller, Microsoft, Microsoft Windows, MIDI, Mini-DIN connector, Minicomputer, Modem, Modified Modular Jack, Modular connector, Morse code, Multimeter, Network switch, NMEA 0183, Noise (electronics), Null modem, Numerical control, Parallel ATA, Parallel port, Parity bit, Personal computer, Phone connector (audio), Pin header, Point of sale, PowerBook, Printer (computing), Registered jack, Router (computing), RS-232, RS-422, Satellite phone, Serial communication, Serial over LAN, Server (computing), Single-ended signaling, Software flow control, State (computer science), Stenotype, Stream (computing), Symbol rate, Teleprinter, Teletype Corporation, Termcap, Transmission Control Protocol, Two-way radio, Uninterruptible power supply, Universal asynchronous receiver-transmitter, Unix, Unix-like, USB, Vendor lock-in, 16550 UART, 8-N-1, 8250 UART. Expand index (63 more) » « Shrink index
Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.
ANSI escape sequences are a standard for in-band signaling to control the cursor location, color, and other options on video text terminals.
AppleTalk was a proprietary suite of networking protocols developed by Apple Inc. for their Macintosh computers.
ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.
Asynchronous serial communication is a form of serial communication in which the communicating endpoints' interfaces are not continuously synchronized by a common clock signal.
A bar code reader (or bar code scanner) is an electronic device that can read and output printed barcodes to a computer.
In telecommunication and electronics, baud (symbol: Bd) is a common measure of the speed of communication over a data channel.
The Baudot code, invented by Émile Baudot, is a character set predating EBCDIC and ASCII.
The bit (a portmanteau of binary digit) is a basic unit of information used in computing and digital communications.
In computer engineering and electrical engineering, bit banging is a colloquial term used to describe various techniques in which serial communications utilize software instead of dedicated hardware to process and make use of signals.
In computing, bit numbering (or sometimes bit endianness) is the convention used to identify the bit positions in a binary number or a container for such a value.
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.
Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485GHz) from fixed and mobile devices, and building personal area networks (PANs).
The byte is a unit of digital information that most commonly consists of eight bits, representing a binary number.
A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
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.
COM (Communication port) is the original, yet still common, name of the serial port interface on IBM PC-compatible computers.
In telecommunication, a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity.
A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface.
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.
A computer repair technician is a person who repairs and maintains computers and servers.
A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying or printing data from, a computer or a computing system.
Computing is any goal-oriented activity requiring, benefiting from, or creating computers.
In computing and telecommunication, a control character or non-printing character is a code point (a number) in a character set, that does not represent a written symbol.
A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency.
The D-subminiature or D-sub is a common type of electrical connector.
In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another.
A data circuit-terminating equipment (DCE) is a device that sits between the data terminal equipment (DTE) and a data transmission circuit.
Data terminal equipment (DTE) is an end instrument that converts user information into signals or reconverts received signals.
Digi International is an American machine to machine (M2M) communications and technology company headquartered in Minnetonka, Minnesota.
A digital camera or digicam is a camera that captures photographs in digital memory.
Digital Equipment Corporation, also known as DEC and using the trademark Digital, was a major American company in the computer industry from the 1950s to the 1990s.
DOS is a family of disk operating systems.
An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit.
In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.
An escape sequence is a series of characters used to change the state of computers and their attached peripheral devices, rather than to be displayed or printed as regular data bytes would be.
Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).
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.
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
In electronic systems and computing, firmware is a specific class of computer software that provides the low-level control for the device's specific hardware.
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force.
A graphing calculator (also graphics / graphic display calculator) is a handheld computer that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables.
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.
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.
A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
Home computers were a class of microcomputers entering the market in 1977, and becoming common during the 1980s.
The IBM 2741 is a printing computer terminal that was introduced in 1965.
The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform.
The IBM Personal Computer AT, more commonly known as the IBM AT and also sometimes called the PC AT or PC/AT, was IBM's second-generation PC, designed around the 6 MHz Intel 80286 microprocessor and released in 1984 as System Unit 5170.
IEEE 1394 is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer.
In telecommunications, in-band signaling is the sending of control information within the same band or channel used for voice or video.
In computing, input/output or I/O (or, informally, io or IO) is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon.
Kermit is a computer file transfer/management protocol and a set of communications software tools primarily used in the early years of personal computing in the 1980s.
A light-emitting diode (LED) is a two-lead semiconductor light source.
Linux is a family of free and open-source software operating systems built around the Linux kernel.
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals.
In computing, load balancing improves the distribution of workloads across multiple computing resources, such as computers, a computer cluster, network links, central processing units, or disk drives.
The Macintosh (pronounced as; branded as Mac since 1998) is a family of personal computers designed, manufactured, and sold by Apple Inc. since January 1984.
A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).
A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.
Microsoft Corporation (abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington.
Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.
MIDI (short for Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related music and audio devices.
The mini-DIN connectors are a family of multi-pin electrical connectors used in a variety of applications.
A minicomputer, or colloquially mini, is a class of smaller computers that was developed in the mid-1960s and sold for much less than mainframe and mid-size computers from IBM and its direct competitors.
A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.
The Modified Modular Jack (MMJ) is a small form-factor serial port connector developed by Digital Equipment Corporation (DEC).
A modular connector is an electrical connector that was originally designed for use in telephone wiring, but has since been used for many other purposes.
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
A multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit.
A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.
NMEA 0183 is a combined electrical and data specification for communication between marine electronics such as echo sounder, sonars, anemometer, gyrocompass, autopilot, GPS receivers and many other types of instruments.
In electronics, noise is an unwanted disturbance in an electrical signal.
Null modem is a communication method to directly connect two DTEs (computer, terminal, printer, etc.) using an RS-232 serial cable.
Computer numerical control (CNC) is the automation of machine tools by means of computers executing pre-programmed sequences of machine control commands.
Parallel ATA (PATA), originally, is an interface standard for the connection of storage devices such as hard disk drives, floppy disk drives, and optical disc drives in computers.
A parallel port is a type of interface found on computers (personal and otherwise) for connecting peripherals.
A parity bit, or check bit, is a bit added to a string of binary code to ensure that the total number of 1-bits in the string is even or odd.
A personal computer (PC) is a multi-purpose computer whose size, capabilities, and price make it feasible for individual use.
A phone connector, also known as phone jack, audio jack, headphone jack or jack plug, is a family of electrical connectors typically used for analog audio signals.
A pin header (often abbreviated as PH, or simply header) is a form of electrical connector.
The point of sale (POS) or point of purchase (POP) is the time and place where a retail transaction is completed.
The PowerBook (known as Macintosh PowerBook before 1997) is a family of Macintosh laptop computers designed, manufactured and sold by Apple Computer, Inc. from 1991 to 2006.
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.
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.
A router is a networking device that forwards data packets between computer networks.
In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.
RS-422, also known as TIA/EIA-422, is a technical standard originated by the Electronic Industries Alliance that specifies electrical characteristics of a digital signaling circuit.
A satellite telephone, satellite phone, or satphone is a type of mobile phone that connects to orbiting satellites instead of terrestrial cell sites.
In telecommunication and data transmission, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus.
Serial Over LAN (SOL) is a mechanism that enables the input and output of the serial port of a managed system to be redirected over IP.
In computing, a server is a computer program or a device that provides functionality for other programs or devices, called "clients".
Single-ended signaling is the simplest and most commonly used method of transmitting electrical signals over wires.
Software flow control is a method of flow control used in computer data links, especially RS-232 serial.
In information technology and computer science, a program is described as stateful if it is designed to remember preceding events or user interactions; the remembered information is called the state of the system.
A stenotype, stenotype machine, shorthand machine or steno writer is a specialized chorded keyboard or typewriter used by stenographers for shorthand use.
In computer science, a stream is a sequence of data elements made available over time.
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.
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.
The Teletype Corporation, a part of American Telephone and Telegraph Company's Western Electric manufacturing arm since 1930, came into being in 1928 when the Morkrum-Kleinschmidt Company changed its name to the name of its trademark equipment.
Termcap (terminal capability) is a software library and database used on Unix-like computers.
The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite.
A two-way radio is a radio that can do both transmit and receive a signal (a transceiver), unlike a broadcast receiver which only receives content.
An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails.
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.
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.
A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.
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.
In economics, vendor lock-in, also known as proprietary lock-in or customer lock-in, makes a customer dependent on a vendor for products and services, unable to use another vendor without substantial switching costs.
The 16550 UART (universal asynchronous receiver/transmitter) is an integrated circuit designed for implementing the interface for serial communications.
8-N-1 is a common shorthand notation for a serial port parameter setting or configuration in asynchronous mode, in which there are eight (8) data bits, no (N) parity bit, and one (1) stop bit.
The 8250 UART (universal asynchronous receiver/transmitter) is an integrated circuit designed for implementing the interface for serial communications.
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