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Lattice C
The Lattice C Compiler was released in June 1982 by Lifeboat Associates and was the first C compiler for the IBM Personal Computer. The compiler sold for $500 and would run on PC DOS or MS-DOS (which at the time were the same product with different brandings). The first hardware requirements were given as 96KB of RAM and one (later two) floppy drives. It was ported to many other platforms, such as mainframes ( MVS), minicomputers ( VMS), workstations (UNIX), OS/2, Amiga, Atari ST, and Sinclair QL. The compiler was subsequently repackaged by Microsoft under a distribution agreement as Microsoft C version 2.0. Microsoft developed their own C compiler that was released in April 1985 as Microsoft C Compiler 3.0. Lattice was purchased by SAS Institute in 1987 and rebranded as SAS/C. After this, support for other platforms dwindled until compiler development ceased for all platforms except IBM mainframes. The product is still available in versions that run on other platforms, but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinclair QDOS
QDOS is the multitasking operating system found on the Sinclair QL personal computer and its clones. It was designed by Tony Tebby whilst working at Sinclair Research, as an in-house alternative to 68K/OS, which was later cancelled by Sinclair, but released by original authors GST Computer Systems. Its name is not regarded as an acronym and sometimes written as Qdos in official literature. QDOS was implemented in Motorola 68000 assembly language, and on the QL, resided in 48 KB of ROM, consisting of either three 16 KB EPROM chips or one 32 KB and one 16 KB ROM chip. These ROMs also held the SuperBASIC interpreter, an advanced variant of BASIC programming language with structured programming additions. This also acted as the QDOS command-line interpreter.1 KB = 1024 bytes Facilities provided by QDOS included management of processes (or "jobs" in QDOS terminology), memory allocation, and an extensible "redirectable I/O system", providing a generic framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amiga
Amiga is a family of personal computers produced by Commodore International, Commodore from 1985 until the company's bankruptcy in 1994, with production by others afterward. The original model is one of a number of mid-1980s computers with 16-bit or 16/32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems. These include the Atari ST as well as the Macintosh 128K, Macintosh and Acorn Archimedes. The Amiga differs from its contemporaries through custom hardware to accelerate graphics and sound, including sprite (computer graphics), sprites, a blitter, and four channels of sample-based audio. It runs a pre-emptive multitasking operating system called AmigaOS, with a desktop environment called Workbench (AmigaOS), Workbench. The Amiga 1000, based on the Motorola 68000 microprocessor, was released in July 1985. Production problems kept it from becoming widely available until early 1986. While ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia Data Products
Columbia Data Products, Inc. (CDP) is a company which produced the first legally reverse-engineered IBM PC clones, starting with the MPC 1600 series in 1982. It faltered in that market after only a few years, and later reinvented itself as a software development company. History 1976–1986: As a hardware company Columbia Data Products was founded by William Diaz in 1976 in Columbia, Maryland. In 1980, Columbia Data Products made some Z80-based computers, most notably their Commander 900 series, which had several models, some of which were multiprocessors and had graphics capabilities. CDP introduced the MPC 1600 "Multi Personal Computer", designed by David Howse, in June 1982. It was an exact functional copy of the IBM Personal Computer model 5150 except for the BIOS which was Clean room designed. IBM had published the bus and BIOS specifications, wrongly assuming that this would not be enough to facilitate unlicensed copying of the design, but be enough to encourage t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seequa Chameleon
The Seequa Chameleon was an early 1980s luggable personal computer released by the Seequa Computer Corporation in 1983. It was capable of running both the DOS and CP/M operating systems. It did so by having both Zilog Z80 and Intel 8088 microprocessors. Chameleon was highly compatible with the IBM PC, running MS-DOS, approximating the hardware capabilities of the IBM PC, and being able to run such programs as ''Flight Simulator''. It was not a huge success in the market. Seequa Computer Corporation was based in Annapolis, Maryland. It was founded by David Gardner (President) and Dave Egli (CEO), one of David's business professors at the University of Maryland. Seequa competed against the early "transportable" computers from Compaq Compaq Computer Corporation was an American information technology, information technology company founded in 1982 that developed, sold, and supported computers and related products and services. Compaq produced some of the first IBM PC compati ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perfect Writer
Perfect Writer is a word processor computer program published by Perfect Software for CP/M. In 1984, Thorn EMI Computer Software acquired an exclusive marketing and distribution licence for Perfect Software's products, and the program was rewritten and released as Perfect II for IBM PC compatible computers. Written in C and famous for its stability, it was an enhanced version of MINCE, which itself was a version of Emacs for microcomputer platforms. Emacs itself was too heavyweight to fit within the 64 KB RAM limit of most microcomputers. Like MINCE, it included a floppy disk based virtual memory system. Along with its companion spreadsheet (Perfect Calc), and database (Perfect Filer), Perfect Writer was bundled with early Columbia Data Products, Kaypro II and Morrow computers, as well as with the Torch Computers Z80 Disk Pack add-on for the BBC Micro and had a list price of . In the UK, it was bundled with the short lived Advance 86B PC (a near IBM compatible). It su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BDS C
BDS C (or the ''BD Software C Compiler'') is a compiler for a sizeable subset of the C programming language, that ran on and generated code for the Intel 8080 and Zilog Z80 processors. It was the first C compiler for CP/M. It was written by Leor Zolman and first released in 1979 when he was 20 years old. "BDS" stands for "Brain Damage Software." BDS C was popular and influential among CP/M users and developers. It ran much faster than other Z80-hosted compilers. It was possible to run BDS C on single-floppy machines with as little as 30K of RAM in comparison to most other commercial compilers which required many passes and the writing of intermediate files to disk. Weak points of BDS C were that the floating point math routines and the file access functions were incompatible with the C compiler used on UNIX, and that its relocatable object files were incompatible with the Microsoft MACRO-80 assembler, making it more difficult to integrate C code with assembly language. BDS C w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CP/M
CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created in 1974 for Intel 8080/Intel 8085, 85-based microcomputers by Gary Kildall of Digital Research, Digital Research, Inc. CP/M is a disk operating system and its purpose is to organize files on a magnetic storage medium, and to load and run programs stored on a disk. Initially confined to single-tasking on 8-bit processors and no more than 64 kilobytes of memory, later versions of CP/M added multi-user variations and were migrated to 16-bit processors. CP/M's core components are the ''Basic Input/Output System'' (BIOS), the ''Basic Disk Operating System'' (BDOS), and the ''Console Command Processor'' (CCP). The BIOS consists of drivers that deal with devices and system hardware. The BDOS implements the file system and provides system services to applications. The CCP is the command-line interpreter and provides some built-in commands. CP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-compilation
A cross compiler is a compiler capable of creating executable code for a platform other than the one on which the compiler is running. For example, a compiler that runs on a PC but generates code that runs on Android devices is a cross compiler. A cross compiler is useful to compile code for multiple platforms from one development host. Direct compilation on the target platform might be infeasible, for example on embedded systems with limited computing resources. Cross compilers are distinct from source-to-source compilers. A cross compiler is for cross-platform software generation of machine code, while a source-to-source compiler translates from one coding language to another in text code. Both are programming tools. Use The fundamental use of a cross compiler is to separate the build environment from target environment. This is useful in several situations: * Embedded computers where a device has highly limited resources. For example, a microwave oven will have an extr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAS Institute
SAS Institute (or SAS, pronounced "sass") is an American multinational developer of analytics and artificial intelligence software based in Cary, North Carolina. SAS develops and markets a suite of analytics software ( also called SAS), which helps access, manage, analyze and report on data to aid in decision-making. The company's software is used by most of the Fortune 500. SAS Institute started as a project at North Carolina State University to create a statistical analysis system, in fact SAS originally stood for "Statistical Analysis System", though it is no longer considered an acronym. It was originally used primarily by agricultural departments at universities in the late 1960s. It became an independent, private business led by current CEO James Goodnight and three other project leaders from the university in 1976. SAS is one of the largest privately held software providers in the world, and the company's software is used by most of the Fortune 500. The company's reve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
