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56 relations: BIOS, Borland Sidekick, Central processing unit, Chips and Technologies, Chipset, Control-Alt-Delete, Conventional memory, DESQview, Digital Research, DOS, DOS memory management, DOS Protected Mode Interface, DOS Protected Mode Services, DR-DOS, Dr. Dobb's Journal, DriveSpace, EMM386, Expanded memory, Extended memory, File Allocation Table, GNU, High memory area, Intel 80286, Intel 80386, Intel 80486, Intel 8086, Intel 8088, Interrupt, Linux, MS-DOS, Multi-Color Graphics Array, Operating system, P5 (microarchitecture), Page Size Extension, Pentium, Power-on self-test, Protected mode, QEMM, Quarterdeck Office Systems, Real mode, Reboot, Unreal mode, Upper memory area, Video Graphics Array, Virtual 8086 mode, Virtual Control Program Interface, Virtual DMA Services, Virtual memory, Virtual memory compression, Windows 2.0, ..., Windows 3.0, Windows 3.1x, Windows 95, Windows 98, Windows ME, Windows NT. Expand index (6 more) »
BIOS
BIOS (an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is non-volatile firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs.
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Borland Sidekick
Borland Sidekick was a personal information manager (PIM) launched by American software company Borland in 1984 under Philippe Kahn's leadership.
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Central processing unit
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.
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Chips and Technologies
Chips and Technologies (C&T), founded in Milpitas, California in December 1984 by Gordon A. Campbell and Dado Banatao, was perhaps the first fabless semiconductor company, a model developed by Campbell.
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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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Control-Alt-Delete
Control-Alt-Delete (often abbreviated to Ctrl+Alt+Del, also known as the "three-finger salute" or "Security Keys") is a computer keyboard command on IBM PC compatible computers, invoked by pressing the Delete key while holding the Control and Alt keys:.
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Conventional memory
In DOS memory management, conventional memory, also called base memory, is the first 640 kilobytes of the memory on IBM PC or compatible systems.
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DESQview
DESQview (DV) was a text mode multitasking operating environment developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s.
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Digital Research
Digital Research, Inc. (also known as DR or DRI) was a company created by Gary Kildall to market and develop his CP/M operating system and related 8-bit, 16-bit and 32-bit systems like MP/M, Concurrent DOS, Multiuser DOS, DOS Plus, DR DOS and GEM.
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DOS
DOS is a family of disk operating systems.
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DOS memory management
In IBM PC compatible computing, DOS memory management refers to software and techniques employed to give applications access to more than 640 kibibytes (640*1024 bytes) (kiB) of "conventional memory".
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DOS Protected Mode Interface
In computing, the DOS Protected Mode Interface (DPMI) is a specification introduced in 1989 which allows a DOS program to run in protected mode, giving access to many features of the new PC processors of the time not available in real mode.
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DOS Protected Mode Services
DOS Protected Mode Services (DPMS) is a set of extended DOS memory management services to allow DPMS-enabled DOS drivers to load and execute in extended memory and protected mode.
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DR-DOS
DR-DOS (DR DOS, without hyphen up to and including version 6.0) is an operating system of the DOS family, written for IBM PC-compatible personal computers.
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Dr. Dobb's Journal
Dr.
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DriveSpace
DriveSpace (initially known as DoubleSpace) is a disk compression utility supplied with MS-DOS starting from version 6.0.
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EMM386
The name EMM386 was used for the expanded memory managers of both Microsoft's MS-DOS and Digital Research's DR-DOS, which created expanded memory using extended memory on Intel 80386 CPUs.
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Expanded memory
In DOS memory management, expanded memory is a system of bank switching that provided additional memory to DOS programs beyond the limit of conventional memory (640 KB).
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Extended memory
In DOS memory management, extended memory refers to memory above the first megabyte (220 bytes) of address space in an IBM PC or compatible with an 80286 or later processor.
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File Allocation Table
File Allocation Table (FAT) is a computer file system architecture and a family of industry-standard file systems utilizing it.
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GNU
GNU is an operating system and an extensive collection of computer software.
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High memory area
In DOS memory management, the high memory area (HMA) is the RAM area consisting of the first 65520 bytes above the one megabyte in an IBM AT or compatible computer.
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Intel 80286
The Intel 80286 (also marketed as the iAPX 286 and often called Intel 286) is a 16-bit microprocessor that was introduced on 1 February 1982.
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Intel 80386
The Intel 80386, also known as i386 or just 386, is a 32-bit microprocessor introduced in 1985.
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Intel 80486
The Intel 80486, also known as the i486 or 486, is a higher performance follow-up to the Intel 80386 microprocessor.
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Intel 8086
The 8086 (also called iAPX 86) is a 16-bit microprocessor chip designed by Intel between early 1976 and mid-1978, when it was released.
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Intel 8088
The Intel 8088 ("eighty-eighty-eight", also called iAPX 88) microprocessor is a variant of the Intel 8086.
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Interrupt
In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.
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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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MS-DOS
MS-DOS (acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft.
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Multi-Color Graphics Array
The Multi-Color Graphics Array or MCGA is a video subsystem built into the motherboard of the IBM PS/2 Model 30, introduced on April 2, 1987, and Model 25, introduced later on August 11; no standalone MCGA cards were ever made.
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Operating system
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
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P5 (microarchitecture)
The first Pentium microprocessor was introduced by Intel on March 22, 1993.
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Page Size Extension
In computing, Page Size Extension (PSE) refers to a feature of x86 processors that allows for pages larger than the traditional 4 KiB size.
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Pentium
Pentium is a brand used for a series of x86 architecture-compatible microprocessors produced by Intel since 1993.
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Power-on self-test
A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on.
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Protected mode
In computing, protected mode, also called protected virtual address mode, is an operational mode of x86-compatible central processing units (CPUs).
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QEMM
Quarterdeck Expanded Memory Manager (QEMM) is a memory manager produced by Quarterdeck Office Systems in the late 1980s through late 1990s.
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Quarterdeck Office Systems
Quarterdeck Office Systems, later Quarterdeck Corporation (NASDAQ: QDEK), was an American computer software company.
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Real mode
Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs.
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Reboot
In computing, rebooting is the process by which a running computer system is restarted, either intentionally or unintentionally.
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Unreal mode
In x86 computing, unreal mode, also big real mode, huge real mode, or flat real mode, is a variant of real mode, in which one or more segment descriptors has been loaded with non-standard values, like 32-bit limits allowing to access entire memory.
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Upper memory area
In DOS memory management, the upper memory area (UMA) refers to memory between the addresses of 640 KB and 1024 KB (0xA0000–0xFFFFF) in an IBM PC or compatible.
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Video Graphics Array
Video Graphics Array (VGA) is the display hardware first introduced with the IBM PS/2 line of computers in 1987, following CGA and EGA introduced in earlier IBM personal computers.
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Virtual 8086 mode
In the 80386 microprocessor and later, virtual 8086 mode (also called virtual real mode, V86-mode or VM86) allows the execution of real mode applications that are incapable of running directly in protected mode while the processor is running a protected mode operating system.
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Virtual Control Program Interface
In computing, the Virtual Control Program Interface (VCPI) is a specification published in 1989 by Phar Lap Software that allows a DOS program to run in protected mode, granting access to many features of the processor not available in real mode.
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Virtual DMA Services
In computing, Virtual DMA Services (VDS) refer to an application programming interface that allow DOS and Win16 applications and device drivers to perform DMA operations while running under protected or virtual 8086 mode.
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Virtual memory
In computing, virtual memory (also virtual storage) is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory." The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory.
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Virtual memory compression
Virtual memory compression (also referred to as RAM compression and memory compression) is a memory management technique that utilizes data compression to reduce the size or number of paging requests to and from the auxiliary storage.
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Windows 2.0
Windows 2.0 is a 16-bit Microsoft Windows GUI-based operating environment that was released on December 9, 1987, and is the successor to Windows 1.0.
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Windows 3.0
Windows 3.0, a graphical environment, is the third major release of Microsoft Windows, and was released on May 22, 1990.
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Windows 3.1x
Windows 3.1x (codenamed Janus) is a series of 16-bit operating environments produced by Microsoft for use on personal computers.
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Windows 95
Windows 95 (codenamed Chicago) is a consumer-oriented operating system developed by Microsoft.
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Windows 98
Windows 98 (codenamed Memphis while in development) is a graphical operating system by Microsoft.
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Windows ME
Windows Millennium Edition, or Windows ME (marketed with the pronunciation of the pronoun "me", commonly pronounced as an initialism, "M-E (Codenamed Millennium)", is a graphical operating system from Microsoft released to manufacturing in June 2000, and launched in September 2000.
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Windows NT
Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993.
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MFT.EXE, MagnaRAM, QEMM-386, QEMM386, QEMM386$, QEXTXXX0, QMMXXXX0, QRAM, Qemm, Quarterdeck Expanded Memory Manager, Quarterdeck MFT, Quarterdeck Manifest, Quarterdeck QEMM, Quarterdeck QRAM, Quickboot (QEMM).
References
[1] https://en.wikipedia.org/wiki/QEMM
