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RAM Pack
RAM pack,http://fjkraan.home.xs4all.nl/comp/zx80/rampack.html (shown as "RAM pack" on 1–3 KB unit itself)http://www.jupiter-ace.co.uk/hardware_rampacks.html (shown as "RAM pack" on manual) RAMpack, RAM expansion cartridge, RAM expansion unit (REU), memory expansion pak and memory module are some of the most common names given to various self-contained units or cartridges that expand a computer, games console or other device's own internal Random-access memory, RAM in a user-friendly manner. Such units are generally designed to be installable by an end-user with little technical knowledge, often simply by plugging them into an expansion or cartridge slot easily accessible at the rear of the machine (e.g. the Sinclair ZX81 or the VTech Laser 200), or via a user-accessible hatch (e.g. the Atari 800's CX852 and CX853 modules or the Nintendo 64 Expansion Pak). The ZX81 16K RAM expansion gained particular notoriety for the "RAM pack wobble" problem because it was top-heavy and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX81 - Rampack - ZX Printer
The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low-cost introduction to home computing for the general public. It was hugely successful; more than 1.5 million units were sold. In the United States it was initially sold as the ZX-81 under licence by Timex. Timex later produced its own versions of the ZX81: the Timex Sinclair 1000 and Timex Sinclair 1500. Unauthorized List of ZX80 and ZX81 clones, ZX81 clones were produced in several countries. The ZX81 was designed to be small, simple, and above all, inexpensive, with as few components as possible. Video output was designed for a television set rather than a dedicated computer monitor, monitor. computer program, Programs and data are Loader (computing), loaded and saved onto compact audio cassettes. It uses only four silicon chips and 1&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random-access Memory
Random-access memory (RAM; ) is a form of Computer memory, electronic computer memory that can be read and changed in any order, typically used to store working Data (computing), data and machine code. A random-access memory device allows data items to be read (computer), read or written in almost the same amount of time irrespective of the physical location of data inside the memory, in contrast with other direct-access data storage media (such as hard disks and Magnetic tape data storage, magnetic tape), where the time required to read and write data items varies significantly depending on their physical locations on the recording medium, due to mechanical limitations such as media rotation speeds and arm movement. In today's technology, random-access memory takes the form of integrated circuit (IC) chips with MOSFET, MOS (metal–oxide–semiconductor) Memory cell (computing), memory cells. RAM is normally associated with Volatile memory, volatile types of memory where s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atari 800
The Atari 8-bit computers, formally launched as the Atari Home Computer System, are a series of home computers introduced by Atari, Inc., in 1979 with the Atari 400 and Atari 800. The architecture is designed around the 8-bit MOS Technology 6502 central processing unit, CPU and three custom coprocessors which provide support for sprite (computer graphics), sprites, smooth multidirectional scrolling, four channels of audio, and other features. The graphics and sound are more advanced than most of its contemporaries, and video games are a key part of the software library. The 1980 first-person space combat simulator ''Star Raiders'' is considered the platform's killer application, killer app. The Atari 800 was positioned as a high-end model and the 400 as more affordable. The 400 has a pressure-sensitive, spillproof membrane keyboard and initially shipped with a non-upgradable of RAM. The 800 has a conventional keyboard, a second cartridge slot, and allows easy RAM upgrades to 48K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jupiter Ace
The Jupiter Ace by Jupiter Cantab was a British home computer released in 1982. The Ace differed from other microcomputers of the time in that its programming environment used Forth instead of the more popular BASIC. This difference, along with limited available software and poor character based graphic display, limited sales and the machine was not a success. History Jupiter Cantab was formed by Richard Altwasser and Steven Vickers. Both had been on the design team for the ZX Spectrum: Altwasser worked on ZX81 development and hardware design of the Spectrum. Vickers adapted and expanded the 4K ZX80 ROM to the 8K ZX81 ROM and wrote most of the ROM for the Spectrum. The Jupiter Ace was named after an early British computer from 1950: the Pilot ACE. The Jupiter Ace went on sale on 22 September 1982 with a price of £89.95. Sales to the general public were slow. Initially the computer was only available by mail order, and Jupiter Cantab reported that there were produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX80
The Sinclair ZX80 is a home computer launched on 29 January 1980 by Science of Cambridge Ltd. (later to be better known as Sinclair Research). It is notable for being one of the first computers available in the United Kingdom for less than a hundred pounds. It was available in kit form for £79.95, where purchasers had to assemble and solder it together, and as a ready-built version at £99.95. The ZX80 was advertised as the first personal computer for under £100 and received praise for its value and documentation. However, it faced criticism for screen blanking during program execution, small RAM size, and the keyboard design. It was very popular straight away, and for some time there was a waiting list of several months for either version of the machine. Name The ZX80 was named after the Z80 processor with the 'X' meaning "the mystery ingredient". Hardware Internally, the machine was designed by Jim Westwood around a Z80 central processing unit with a clock speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX81
The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low-cost introduction to home computing for the general public. It was hugely successful; more than 1.5 million units were sold. In the United States it was initially sold as the ZX-81 under licence by Timex. Timex later produced its own versions of the ZX81: the Timex Sinclair 1000 and Timex Sinclair 1500. Unauthorized ZX81 clones were produced in several countries. The ZX81 was designed to be small, simple, and above all, inexpensive, with as few components as possible. Video output was designed for a television set rather than a dedicated monitor. Programs and data are loaded and saved onto compact audio cassettes. It uses only four silicon chips and 1 KB of memory. It has no power switch or moving parts, with the exception ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atari 8-bit Computer Peripherals
Atari 8-bit computer peripherals include floppy drives, printers, modems, and video game controllers for Atari 8-bit computers, which includes the 400/800, XL, XE, and XEGS. Because the Atari 400/800 8-bit computers were bundled with an RF modulator, stringent FCC regulations limiting radio emissions applied. Consequently, the Atari 400/800 systems internal construction use large metal frames as Faraday cages to prevent emissions. This prevents the use of internal cards to add connections for peripherals. To permit easy expansion, Atari developed the SIO (Serial Input/Output) bus. This bus daisy chains together all Atari peripherals into a single string. The Atari computer family was designed to be easy for novice users to expand, with one universal connector plug. Peripherals have their own IDs and can deliver downloadable drivers to the computer during the boot process. However, the additional electronics in these "intelligent" peripherals made them cost more than the "dumb" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VIC-20
The VIC-20 (known as the VC-20 in Germany and the VIC-1001 in Japan) is an 8-bit entry level home computer that was sold by Commodore International, Commodore Business Machines. The VIC-20 was announced in 1980, roughly three years after Commodore's first personal computer, the Commodore PET, PET. The VIC-20 was the first computer of any description to sell one million units, eventually reaching 2.5 million. It was described as "one of the first anti-spectatorial, non-esoteric computers by design...no longer relegated to hobbyist/enthusiasts or those with money, the computer Commodore developed was the computer of the future." History As the Apple II gained momentum with the advent of VisiCalc in 1979, Jack Tramiel wanted a product that would compete in the same segment, to be presented at the January 1980 Consumer Electronics Show, CES. For this reason Chuck Peddle and Bill Seiler started to design a computer named ''TOI'' (The Other Intellect). The TOI computer failed to m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commodore REU
The Commodore RAM Expansion Unit (REU) is a range of external RAM add-ons. At the time of introduction of the Commodore 128 home computer, two REUs were announced for that model; the 1700 (128 KB) and 1750 () REUs. Later, Commodore introduced a third model, for their Commodore 64 model: the 1764 () The need for the REU came about when Commodore management decided to not use the final version of the custom Memory Management Unit (MMU) which then limited the size of memory in spite of early discussion of a larger memory map. Engineers traveling to the 1985 Consumer Electronics Show (CES) were confronted with flyers and billboards advertising a memory size that was no longer supported and finally the top management asked where the additional memory (up to ) would plug in. By the time of the 1985 CES show in Chicago, the engineers were able to display a spinning globe of the earth as a demonstration of Direct Memory Access (DMA) by the new REU units. The REU hardware was de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sega Saturn
The is a home video game console developed by Sega and released on November 22, 1994, in Japan, May 11, 1995, in North America, and July 8, 1995, in Europe. Part of the fifth generation of video game consoles, it is the successor to the successful Sega Genesis, Genesis. The Saturn has a dual-Central processing unit, CPU architecture and eight processors. Its games are in CD-ROM format, including several Porting, ports of arcade games and original games. Development of the Saturn began in 1992, the same year Sega's groundbreaking 3D computer graphics, 3D Sega Model 1, Model 1 arcade hardware debuted. The Saturn was designed around a new CPU from the Japanese electronics company Hitachi. Another video display processor was added in early 1994 to better compete with the 3D graphics of Sony Interactive Entertainment, Sony's forthcoming PlayStation (console), PlayStation. The Saturn was initially successful in Japan but not in the United States, where it was hindered by a surprise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nintendo 64 Accessories
Nintendo 64 accessories are first-party Nintendo hardwareand third-party hardware, licensed and unlicensed. Nintendo's first-party accessories are mainly transformative system expansions: the 64DD Internet multimedia platform, with a floppy drive, video capture and editor, game building setup, web browser, and online service; the controller plus its own expansions for storage and rumble feedback; and the RAM-boosting Expansion Pak for big improvements in graphics and gameplay. Third-party accessories include the essential game developer tools built by SGI and SN Systems on Nintendo's behalf, an unlicensed SharkWire online service, and unlicensed cheaper counterparts to first-party items. In the fifth generation of video game consoles, the Nintendo 64 had a market lifespan from 1996 to 2002. First-party First-party Nintendo 64 accessories have a product code prefixed with NUS, short for "Nintendo Ultra Sixty-four". Controller The Nintendo 64 controller (NUS-005) features a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nintendo DS Browser
The Nintendo DS Browser is a port of the Opera 8.5 web browser for use on the Nintendo DS, developed by Opera Software and Nintendo, and sold as a standalone game cartridge. Two versions were sold, one for the original Nintendo DS and one for the Nintendo DS Lite, each with a different Slot-2 memory expansion pack to fit the respective system. The browser received mixed reviews from critics, largely focusing on its slow speeds despite its functionality. It was later rendered obsolete by an improved browser on the system's upgraded version, the Nintendo DSi, which, unlike its predecessor, was onboard software. Features Nintendo DS Browser makes use of the Nintendo DS's touchscreen for input, with an on-screen keyboard as well as handwriting recognition and a stock of pre-set text (for example, the .com and .org top-level domains). The browser can render pages in two modes, Small Screen Rendering (SSR) or Overview. In Small Screen Rendering mode, the contents of the page are d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
