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Timex Sinclair 2068
The Timex Sinclair 2068 (T/S 2068), released in November 1983, was Timex Sinclair's third and last home computer for the United States market. It was also marketed in Canada, Argentina, Portugal and Poland, as Timex Computer 2068 (TC 2068). History Following Timex's ZX81-based T/S 1000 and T/S 1500, a new series of ZX Spectrum-based machines was created. Initially named T/S 2000 (as reflected on the user manual), the machine evolved into the T/S 2048 prototype, and was eventually released as T/S 2068, with the name chosen mainly for marketing reasons. Advertisements described the T/S 2068 as offering 72K of memory, color, and sound for a price under $200. Like the T/S 1500 was announced as a 40K memory machine (16K RAM + 24K ROM), so the 2068 was announced as a 72K machine (48K RAM + 24K ROM). Although Timex Computer Corporation folded in February 1984, the independent Portuguese division continued to sell the machine in Portugal as the Timex Computer 2068, and Poland until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timex Sinclair 2068 Manipulated , American R&B music group
{{disambiguation ...
Timex may refer to: * Timex Group USA, watch manufacturer, now owned by Timex Group * Timex Group, Dutch holding company, owner of several watch brands * Timex Audio, brand name licensed to SDI Technologies * Timex Sinclair, computer manufacturer * Timex Social Club Timex Social Club is an American R&B group, formed in 1985 and best known for the 1986 hit single " Rumors". History Originally known as the Timex Crew, members included Marcus Thompson (founder), Gregory "Greg B" Thomas, Michael Marshall, Cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Read-only Memory
Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device. Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware. Software applications (like video games) for programmable devices can be distributed as plug-in cartridges containing ROM. Strictly speaking, ''read-only memory'' refers to memory that is hard-wired, such as diode matrix or a mask ROM integrated circuit (IC), which cannot be electronically changed after manufacture. Although discrete circuits can be altered in principle, through the addition of bodge wires and/or the removal or replacement of components, ICs cannot. Correction of errors, or updates to the software, require new devices to be manufactured and to replace the installed device. Floating-gate ROM semiconductor memory in the form of erasab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Mechanics
''Popular Mechanics'' (sometimes PM or PopMech) is a magazine of popular science and technology, featuring automotive, home, outdoor, electronics, science, do-it-yourself, and technology topics. Military topics, aviation and transportation of all types, space, tools and gadgets are commonly featured. It was founded in 1902 by Henry Haven Windsor, who was the editor and—as owner of the Popular Mechanics Company—the publisher. For decades, the tagline of the monthly magazine was "Written so you can understand it." In 1958, PM was purchased by the Hearst Corporation, now Hearst Communications. In 2013, the US edition changed from twelve to ten issues per year, and in 2014 the tagline was changed to "How your world works." The magazine added a podcast in recent years, including regular features ''Most Useful Podcast Ever'' and ''How Your World Works''. History ''Popular Mechanics'' was founded in Chicago by Henry Haven Windsor, with the first issue dated January 11, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timex FDD
The Timex FDD 3000 in 1982 was a nearly complete computer by Timex of Portugal. It began its development at Timex Computer Corporation in the U.S., but it was at Timex of Portugal that the work was finished. The Timex FDD 3000 is an upgraded Timex FDD (sometimes known as the FDD3 because it consisted of three separate boxes: the disk drive, the controller and the power supply). The Timex FDD3 was intended as a floppy disk peripheral for the Timex TC2048 or TC2068 microcomputers. It usually had 16K RAM and only one 3″ disk drive, but it could be upgraded to 64K RAM and a second disk drive, making it capable of running CP/M. Since the controller is electrically compatible with today's disk drives, it is possible to connect a 3.5″/5.25″ disk drive to the Timex FDD3 Controller (it's also possible to connect a Hitachi 3″ disk drive to an IBM PC Compatible computer). Later, Timex combined the three boxes of the FDD into one big box called the Timex FDD 3000. Timex also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasword
''Tasword'' was a word processor for the ZX Spectrum developed by Tasman Software. The first version was released in 1982 and spawned two major revisions in addition to several add-ons and, later, tailored versions for the +2 and +3 Spectrum models, the SAM Coupé, the MSX, the Timex Sinclair 2068 and the Amstrad CPC range. Many of the features of modern word processors were included, such as justification, word wrap and page header. Features such as bold text and italic type were achieved through sending special escape sequences to a printer. It featured the ability to use a 64 characters per line font in the standard ZX Spectrum screen. Add-on products included TasMerge for mail merge functionality (which was later included in Tasword III and later versions) and TasSpell for spell checker. Releases ZX81 *Tasword - 1982 ZX Spectrum *Tasword Two "The Word Processor" - 1983 ftp://ftp.worldofspectrum.org/pub/spectrum/company-pics/TasmanSoftware/TasmanSoftwareCatalogueSprin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bank Switching
Bank switching is a technique used in computer design to increase the amount of usable memory beyond the amount directly addressable by the processor instructions. It can be used to configure a system differently at different times; for example, a ROM required to start a system from diskette could be switched out when no longer needed. In video game systems, bank switching allowed larger games to be developed for play on existing consoles. Bank switching originated in minicomputer systems. Many modern microcontrollers and microprocessors use bank switching to manage random-access memory, non-volatile memory, input-output devices and system management registers in small embedded systems. The technique was common in 8-bit microcomputer systems. Bank-switching may also be used to work around limitations in address bus width, where some hardware constraint prevents straightforward addition of more address lines, and to work around limitations in the ISA, where the addresses genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX Spectrum Graphic Modes
The ZX Spectrum is generally considered to have limited graphical capabilities in comparison to some other home computers of the same era such as the Commodore 64, largely due to its lack of a dedicated graphics chip. Nevertheless, throughout its commercial life and later activity on the demoscene, various techniques have been developed to provide (or emulate) improvements to the Spectrum's graphical output. Colour palette The ZX Spectrum (and compatibles) computers uses a variation of the 4-bit RGBI palette philosophy (also used on CGA, Thomson MO5, Sharp MZ-800, Mattel Aquarius, etc.) resulting in 8 basic colours with brightness variations. This results in each of the colours of the 3-bit palette having a ''basic'' and ''bright'' variant, with the exception of black. The ''bright'' half of the palette is generated using the video displays' maximum voltage levels for each of the three Red, Green and Blue (RGB) components that a colour uses. The ''basic'' half of the pale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uncommitted Logic Array
A gate array is an approach to the design and manufacture of application-specific integrated circuits (ASICs) using a prefabricated chip with components that are later interconnected into logic devices (e.g. NAND gates, flip-flops, etc.) according to a custom order by adding metal interconnect layers in the factory. It was popular during upheaval in semiconductor industry in 80s and its usage declined by end of 90s. Similar technologies have also been employed to design and manufacture analog, analog-digital, and structured arrays, but, in general, these are not called gate arrays. Gate arrays have also been known as ''uncommitted logic arrays'' (''ULAs''), which also offered linear circuit functions, and ''semi-custom chips''. History Development Gate arrays had several concurrent development paths. Ferranti in the UK pioneered commercializing bipolar ULA technology, offering circuits of "100 to 10,000 gates and above" by 1983. The company's early lead in semi-custom chips ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ROM Cartridge
A ROM cartridge, usually referred to in context simply as a cartridge, cart, or card, is a replaceable part designed to be connected to a consumer electronics device such as a home computer, video game console or, to a lesser extent, electronic musical instruments. ROM cartridges allow users to rapidly load and access programs and data alongside a floppy drive in a home computer; in a video game console, the cartridges are standalone. At the time around their release, ROM cartridges provided security against unauthorised copying of software. However, the manufacturing of ROM cartridges was more expensive than floppy disks, and the storage capacity was smaller. ROM cartridges and slots were also used for various hardware accessories and enhancements. The widespread usage of the ROM cartridge in video gaming applications has led it to be often colloquially called a game cartridge. History ROM cartridges were popularized by early home computers which featured a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chiclet Keyboard
A chiclet keyboard or island-style keyboard is a computer keyboard with keys that form an array of small, flat rectangular or lozenge-shaped rubber or plastic keys that look like erasers or "Chiclets", a brand of chewing gum manufactured in the shape of small squares with rounded corners. It is an evolution of the membrane keyboard, using the same principle of a single rubber sheet with individual electrical switches underneath each key, but with the addition of an additional upper layer which provides superior tactile feedback through a buckling mechanism. Since the mid-1980s, chiclet keyboards have been mainly restricted to lower-end electronics, such as small handheld calculators, cheap PDAs and many remote controls, though the name is also used to refer to scissor keyboards with superficially similar appearance. History The term first appeared during the home computer era of the late 1970s to mid-1980s. The TRS-80 Color Computer, TRS-80 MC-10, and Timex Sinclair 2068 we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joystick
A joystick, sometimes called a flight stick, is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal control device in the cockpit of many civilian and military aircraft, either as a centre stick or side-stick. It often has supplementary switches to control various aspects of the aircraft's flight. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick. Joysticks are also used for controlling machines such as cranes, trucks, underwater unmanned vehicles, wheelchairs, surveillance cameras, and zero turning radius lawn mowers. Miniature finger-operated joysticks have been adopted as input devices for smaller electronic equipment such as mobile phones. Aviation Joys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Instrument AY-3-8910
The AY-3-8910 is a 3-voice programmable sound generator (PSG) designed by General Instrument in 1978, initially for use with their 16-bit CP1610 or one of the PIC1650 series of 8-bit microcomputers. The AY-3-8910 and its variants were used in many arcade games—Konami's ''Gyruss'' contains five—and pinball machines as well as being the sound chip in the Intellivision and Vectrex video game consoles, and the Amstrad CPC, Oric-1, Colour Genie, Elektor TV Games Computer, MSX, and later ZX Spectrum home computers. It was also used in the Mockingboard and Cricket sound cards for the Apple II and the Speech/Sound Cartridge for the TRS-80 Color Computer. After General Instrument's spinoff of Microchip Technology in 1987, the chip was sold for a few years under the Microchip brand. It was also manufactured under license by Yamaha (with a selectable clock divider pin and a double-resolution and double-rate volume envelope table) as the YM2149F; the Atari ST us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
