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Programa Educativo De Colegios Secundarios
The PECOS (Programa Educativo de COlegios Secundarios) was an Argentine computer designed and manufactured by Assiel (later renamed Aswork) for educational purposes. Launched in 1983, around 1500 units were produced for schools in Buenos Aires. It became a key development in Argentina's computing industry alongside the ''Alpha'' and ''Sincorp SBX''. Assiel was the first fully integrated computer manufacturer in Argentina, handling the entire process from design to assembly, unlike other companies that assembled imported parts. The machine was created based on the article '' Build Your Own Z80 Computer'' by Steve Ciarcia in Byte magazine. The PECOS was primarily sold to educational institutions, which were also using Commodore and MSX machines. PECOS computers supported educational networks where teachers controlled student activities via terminal networks. Schools typically installed networks of up to 10 PECOS units, sharing floppy drives and printers, with software developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zilog Z80
The Zilog Z80 is an 8-bit computing, 8-bit microprocessor designed by Zilog that played an important role in the evolution of early personal computing. Launched in 1976, it was designed to be Backward compatibility, software-compatible with the Intel 8080, offering a compelling alternative due to its better Integrated circuit, integration and increased performance. Along with the 8080's seven Processor register, registers and flags register, the Z80 introduced an alternate register set, two 16-bit index registers, and additional instructions, including bit manipulation and block copy/search. Originally intended for use in embedded systems like the 8080, the Z80's combination of compatibility, affordability, and superior performance led to widespread adoption in video game systems and home computers throughout the late 1970s and early 1980s, helping to fuel the personal computing revolution. The Z80 was used in iconic products such as the Osborne 1, TRS-80, Radio Shack TRS-80, Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commodore International
Commodore International Corporation was a home computer and electronics manufacturer with its head office in The Bahamas and its executive office in the United States founded in 1976 by Jack Tramiel and Irving Gould. It was the successor company to Commodore Business Machines (Canada) Ltd., established in 1958 by Tramiel and Manfred Kapp. Commodore International (CI), along with its U.S. subsidiary Commodore Business Machines, Inc. (CBM), was a significant participant in the development of the home computer industry, and at one point in the 1980s was the world's largest in the industry. The company released its first home computer, the Commodore PET, in 1977; it was followed by the VIC-20, the first ever computer to reach one million units of sales. In 1982, the company developed and marketed the world's best selling computer, the Commodore 64; its success made Commodore one of the world's largest personal computer manufacturers, with sales peaking in the last quarter of 1983 at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pascal (programming Language)
Pascal is an imperative and procedural programming language, designed by Niklaus Wirth as a small, efficient language intended to encourage good programming practices using structured programming and data structuring. It is named after French mathematician, philosopher and physicist Blaise Pascal. Pascal was developed on the pattern of the ALGOL 60 language. Wirth was involved in the process to improve the language as part of the ALGOL X efforts and proposed a version named ALGOL W. This was not accepted, and the ALGOL X process bogged down. In 1968, Wirth decided to abandon the ALGOL X process and further improve ALGOL W, releasing this as Pascal in 1970. On top of ALGOL's scalars and arrays, Pascal enables defining complex datatypes and building dynamic and recursive data structures such as lists, trees and graphs. Pascal has strong typing on all objects, which means that one type of data cannot be converted to or interpreted as another without explicit conversions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COBOL
COBOL (; an acronym for "common business-oriented language") is a compiled English-like computer programming language designed for business use. It is an imperative, procedural, and, since 2002, object-oriented language. COBOL is primarily used in business, finance, and administrative systems for companies and governments. COBOL is still widely used in applications deployed on mainframe computers, such as large-scale batch and transaction processing jobs. Many large financial institutions were developing new systems in the language as late as 2006, but most programming in COBOL today is purely to maintain existing applications. Programs are being moved to new platforms, rewritten in modern languages, or replaced with other software. COBOL was designed in 1959 by CODASYL and was partly based on the programming language FLOW-MATIC, designed by Grace Hopper. It was created as part of a U.S. Department of Defense effort to create a portable programming language for data pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BASIC
Basic or BASIC may refer to: Science and technology * BASIC, a computer programming language * Basic (chemistry), having the properties of a base * Basic access authentication, in HTTP Entertainment * Basic (film), ''Basic'' (film), a 2003 film * Basic, one of the Galactic Basic, languages in ''Star Wars'' Music * Basic (Glen Campbell album), ''Basic'' (Glen Campbell album), 1978 * Basic (Robert Quine and Fred Maher album), ''Basic'' (Robert Quine and Fred Maher album), 1984 * B.A.S.I.C. (Alpinestars album), ''B.A.S.I.C.'' (Alpinestars album), 2000 * Basic (Brown Eyed Girls album), ''Basic'' (Brown Eyed Girls album), 2015 * B.A.S.I.C. (The Basics album), ''B.A.S.I.C.'' (The Basics album), 2019 Places * Basic, Mississippi, a community in the US * BASIC countries, Brazil, South Africa, India and China in climate change negotiations Organizations * BASIC Bank Limited, government owned bank in Bangladesh * Basic Books, an American publisher Other uses * Basic (cigarette), a brand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TMS9918
IMAGE:TMS9918A 01.jpg, VDP TMS9918A IMAGE:TMS9918A 02.jpg, VDP TMS9918A The TMS9918 is a video display controller (VDC) manufactured by Texas Instruments, in manuals referenced as "Video Display Processor" (VDP) and introduced in 1979. The TMS9918 and its variants were used in the PV-2000, Casio PV-2000, Coleco Adam, ColecoVision, VTech CreatiVision, CreatiVision, Hanimex, Hanimex Pencil II, MSX, Memotech MTX, NABU Network#Hardware, NABU Personal Computer, Programa Educativo de Colegios Secundarios, PECOS, SG-1000, SC-3000, SV-318, SV-328, Sord M5, TI-99/4A, TI-99/4, Tatung Einstein, and Tomy Tutor. The TMS9918 generates both grid-based character graphics (used to display text or background images) and sprite (computer graphics), sprites used for moving foreground objects. The key features of this chip are, as highlighted in a 1980 presentation by Karl Guttag (one of the designers): *256 by 192 full color pixels per screen *15 different colors and/or shades *Progressive scan, Non ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas Instruments SN76489
The Texas Instruments SN76489 is a programmable sound generator chip from the 1980s, used to create music and sound effects on computers and video game systems. Initially developed by Texas Instruments for its TI-99/4A home computer, it was later updated and widely adopted in systems like the BBC Micro, ColecoVision, IBM PCjr, Sega's Master System and Game Gear, and the Tandy 1000. Competing with the General Instrument AY-3-8910, the SN76489 offered three tone generators for musical notes and a noise generator for sound effects like static and explosions, all with adjustable frequencies and volume levels. Overview The SN76489 was originally designed to be used in the TI-99/4 computer, where it was first called the TMS9919 and later SN94624, and had a 500 kHz max clock input rate. A version was made for sales outside TI, the SN76489, which added a divide-by-8 to the clock input, allowing a clock input rate up to which allowed it to use the crystal for the NTSC colorburst wh ... [...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] |
Steve Ciarcia
Steve Ciarcia is an American embedded control systems engineer. He became popular through his ''Ciarcia's Circuit Cellar'' column in ''BYTE'' magazine, and later through the ''Circuit Cellar'' magazine that he published. He is also the author of ''Build Your Own Z80 Computer'', edited in 1981 and ''Take My Computer...Please!'', published in 1978. He has also compiled seven volumes of his hardware project articles that appeared in ''BYTE'' magazine. In 1982 and 1983, he published a series of articles on building the MPX-16, a 16-bit single-board computer that was hardware-compatible with the IBM PC. In December 2009, Steve Ciarcia announced that for the American market a strategic cooperation would be entered between ''Elektor :''Elektor (ἠλέκτωρ) is also an ancient Greek name or epithet of the Sun, see Helios.'' ''Elektor'', also known as ''Elektor Magazine'', is a monthly magazine about all aspects of electronics, originally published in the Netherlands as ''E ...'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Build Your Own Z80 Computer
''Build Your Own Z80 Computer: design guidelines and application notes'' is a book written by Steve Ciarcia, published in 1981 by McGraw-Hill. The book explains step-by-step the process of building a computer from the ground up, using the Zilog Z80 8-bit Microprocessors, including building a power supply, keyboard, and interfaces to a CRT terminal and tape drive. References External links Z8.info Support PagesBuild Your Own Z80 Computer: design guidelines and application notesby archive.org The Internet Archive is an American non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applic ... Z-80 Space-Time Productions Single Board Computerbrainwagon » Build Your Own Z80 ComputerBlake's Conflabatorium , Z80 Microcomputer* * * 1981 non-fiction books Computer books Electronics books DIY culture Z80-based home computers< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
