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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 hardware requirements were 96KB of RAM and two floppy drives. It was ported to many other platforms, such as mainframes (MVS), minicomputers ( VMS), workstations (UNIX), OS/2, the Commodore Amiga, Atari ST and the 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 these are cross c ... [...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 (see also the identically-pronounced word kudos). 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 "redi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amiga
Amiga is a family of personal computers introduced by Commodore in 1985. The original model is one of a number of mid-1980s computers with 16- or 32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems. This includes the Atari ST—released earlier the same year—as well as the Macintosh and Acorn Archimedes. Based on the Motorola 68000 microprocessor, the Amiga differs from its contemporaries through the inclusion of custom hardware to accelerate graphics and sound, including sprite (computer graphics), sprites and a blitter, and a pre-emptive multitasking operating system called AmigaOS. The Amiga 1000 was released in July 1985, but production problems kept it from becoming widely available until early 1986. The best-selling model, the Amiga 500, was introduced in 1987 along with the more expandable Amiga 2000. The Amiga 3000 was introduced in 1990, followed by the Amiga 500 Plus, and Am ... [...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 compatible, IBM PC clones. It faltered in that market after only a few years, and later reinvented itself as a Software development, 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 Zilog Z80, 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, IBM PC model 5150 except for the BIOS which was Clean room design, Clean room designed. IBM had published the Industry Standard Architecture, bus and BIOS specifications, wrongly assuming that this would not be enough to facilitate u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seequa Chameleon
The Seequa Chameleon was an early 1980s luggable personal computer; 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. By Barbara E. and John F. McMullen, Page 124, 1984-04-03, PC Mag While it ran and approximated the hardware capabilities of the , it was highly |
Perfect Writer
Perfect Writer is a word processor computer program published by Perfect Software for CP/M, subsequently rewritten and released as Perfect II by Thorn EMI Computer Software for IBM PC compatible computers. It was 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 64kb 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 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 supported up to 7 buffers, had a character transpose command, undo, footnotes, and indexing. Its capabilities were very close to ... [...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 was ... [...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/ 85-based microcomputers by Gary Kildall of Digital Research, Inc. 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. The combination of CP/M and S-100 bus computers became an early standard in the microcomputer industry. This computer platform was widely used in business through the late 1970s and into the mid-1980s. CP/M increased the market size for both hardware and software by greatly reducing the amount of programming required to install an application on a new manufacturer's computer. An important driver of software innovation was the advent of (comparatively) low-cost microcomputers running CP/M, as independent programmers and hackers bought them and shared their crea ... [...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 an Android smartphone 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAS Institute
SAS Institute (or SAS, pronounced "sass") is an American multinational developer of analytics 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 is the world's largest privately held software business and its 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 (hence the proper name, Statistical Analysis System) that 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 grew from $10 million in revenues in 1980 to $1.1 billion by 2000. In 1998 a larger proportion of these revenues were spent on research and development than at most other soft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
