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SN76496
The SN76489 Digital Complex Sound Generator (DCSG) is a TTL-compatible programmable sound generator chip from Texas Instruments. Its main application was the generation of music and sound effects in game consoles, arcade games and home computers (such as the TI-99/4A, BBC Micro, ColecoVision, IBM PCjr, Tomy Tutor, and Tandy 1000), competing with the similar General Instrument AY-3-8910. It contains: * 3 square wave tone generators. ** A wide range of frequencies. ** 16 different volume levels. * 1 noise generator. ** 2 types (white noise and periodic). ** 3 different frequencies. ** 16 different 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. Later, when it was sold outside of TI, it was renamed the SN76489, and a divide-by-8 was added to its clock input, increasing the max clock input rate to , to facilitate sharing a crystal for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SN76489 01
The SN76489 Digital Complex Sound Generator (DCSG) is a transistor-transistor logic, TTL-compatible programmable sound generator chip from Texas Instruments. Its main application was the generation of music and sound effects in game consoles, arcade games and home computers (such as the TI-99/4A, BBC Micro, ColecoVision, IBM PCjr, Tomy Tutor, and Tandy 1000), competing with the similar General Instrument AY-3-8910. It contains: * 3 square wave tone generators. ** A wide range of frequencies. ** 16 different volume levels. * 1 noise generator. ** 2 types (white noise and periodic). ** 3 different frequencies. ** 16 different volume levels. Overview The SN76489 was originally designed to be used in the TI-99/4A#99/4, TI-99/4 computer, where it was first called the TMS9919 and later SN94624, and had a 500 kHz max clock input rate. Later, when it was sold outside of TI, it was renamed the SN76489, and a divide-by-8 was added to its clock input, increasing the max clock input rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandy 1000
The Tandy 1000 is the first in a line of IBM PC workalike home computer systems produced by the Tandy Corporation for sale in its Radio Shack and Radio Shack Computer Center chains of stores. Overview In December 1983, an executive with Tandy Corporation, maker of TRS-80 computers, said about the new IBM PCjr: "I'm sure a lot of people will be coming out with PCjr look-alikes. The market is big." While preparing the Tandy 2000—the company's first MS-DOS computer—for release in November 1983, Tandy began designing the Tandy 1000, code named "August". Unlike the 2000 it would be PC compatible with the IBM PC, and support the PCjr graphics standard. Released in November 1984, the $1,200 Tandy 1000 offers the same functionality as the PCjr, but with an improved keyboard and better expandability and compatibility. "How could IBM have made that mistake with the PCjr?" an amazed Tandy executive said regarding its chiclet keyboard, and another claimed that the 1000 "is what the PCj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM PCjr
The IBM PCjr (pronounced "PC junior") was a home computer produced and marketed by IBM from March 1984 to May 1985, intended as a lower-cost variant of the IBM PC with hardware capabilities better suited for video games, in order to compete more directly with other home computers such as the Apple II and Commodore 64. It retained the IBM PC's 8088 CPU and BIOS interface, but provided enhanced graphics and sound, ROM cartridge slots, built-in joystick ports, and an infrared wireless keyboard. The PCjr supported expansion via "sidecar" modules, which could be attached to the side of the unit. Despite widespread anticipation, the PCjr was ultimately unsuccessful in the market. It was only partially IBM compatible, limiting support for IBM's software library, its chiclet keyboard was widely criticized for its poor quality, expandability was limited, and it was initially offered with a maximum of of RAM, insufficient for many PC programs. Models The PCjr came in two models: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTSC
The first American standard for analog television broadcast was developed by National Television System Committee (NTSC)National Television System Committee (1951–1953), Report and Reports of Panel No. 11, 11-A, 12–19, with Some supplementary references cited in the Reports, and the Petition for adoption of transmission standards for color television before the Federal Communications Commission, n.p., 1953], 17 v. illus., diagrs., tables. 28 cm. LC Control No.:5402138Library of Congress Online Catalog/ref> in 1941. In 1961, it was assigned the designation CCIR System M, System M. In 1953, a second NTSC standard was adopted, which allowed for color television broadcast compatible with the existing stock of black-and-white receivers. It is one of three major color formats for analog television, the others being PAL and SECAM. NTSC color is usually associated with the System M. The only other broadcast television system to use NTSC color was the System J. Since the introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senjyo
is an arcade shooter game developed and released in 1983 by Tehkan (now known as Tecmo). Gameplay The gameplay involves the player controlling a fixed turret on a tank shooting oncoming alien enemies through a cross-hair target. A certain number of enemies must be destroyed to progress to the next stage. The original arcade cabinet was a cocktail table. The game employs the use of pseudo-3D graphical effects to give the illusion of a three-dimensional landscape. However, the player's tank is fixed in a single location, whereas the enemies can move across the landscape. Release The arcade game was released in Japan in 1983. In North America, it was demonstrated at AMOA 1984. The game was ported and published by Sony Corporation in 1984 for MSX computers. In 2005, Senjyo was re-released exclusively on the Xbox, as part of the Tecmo Classic Arcade collection. Reception In Japan, ''Game Machine'' listed ''Senjyo'' on their January 1, 1984 issue as being the second most-suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tecmo
, was a Japanese video game corporation founded in 1967. It had its headquarters in Kudankita, Chiyoda, Tokyo, Chiyoda, Tokyo. Its subsidiary, Tecmo Inc, was located in Torrance, California. Tecmo was formerly known as Tehkan. Tecmo is known for the ''Captain Tsubasa'', ''Dead or Alive (series), Dead or Alive'', ''Deception (video game series), Deception'', ''Fatal Frame'', ''Gallop Racer'', ''Monster Rancher (series), Monster Rancher'', ''Ninja Gaiden'', ''Rygar (arcade game), Rygar'', ''Star Force'' and ''Tecmo Bowl'' video game series. When it was still called Tehkan, the company released arcade games such as ''Bomb Jack'', ''Gridiron Fight'' and ''Tehkan World Cup''. The company was founded on July 31, 1967 as a supplier of cleaning equipment. By 1969, it started to sell amusement equipment. In 2009, Tecmo merged with Koei to form the holding company Koei Tecmo, Tecmo Koei Holdings and was operated as a subsidiary until its disbandment in early 2010. In April 2010, Tecmo was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Application-specific Integrated Circuit
An application-specific integrated circuit (ASIC ) is an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use, such as a chip designed to run in a digital voice recorder or a high-efficiency video codec. Application-specific standard product (ASSP) chips are intermediate between ASICs and industry standard integrated circuits like the 7400 series or the 4000 series. ASIC chips are typically fabricated using metal-oxide-semiconductor (MOS) technology, as MOS integrated circuit chips. As feature sizes have shrunk and design tools improved over the years, the maximum complexity (and hence functionality) possible in an ASIC has grown from 5,000 logic gates to over 100 million. Modern ASICs often include entire microprocessors, memory blocks including ROM, RAM, EEPROM, flash memory and other large building blocks. Such an ASIC is often termed a SoC (system-on-chip). Designers of digital ASICs often use a hardware descrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sega Genesis
The Sega Genesis, known as the outside North America, is a 16-bit Fourth generation of video game consoles, fourth generation home video game console developed and sold by Sega. It was Sega's third console and the successor to the Master System. Sega released it in 1988 in Japan as the Mega Drive, and in 1989 in North America as the Genesis. In 1990, it was distributed as the Mega Drive by Virgin Mastertronic in Europe, Ozisoft in Australasia, and Tec Toy in Brazil. In South Korea, it was distributed by Samsung as the Super Gam*Boy and later the Super Aladdin Boy. Designed by an Research and development, R&D team supervised by Hideki Sato and Masami Ishikawa, the Genesis was adapted from Sega's Sega System 16, System 16 arcade board, centered on a Motorola 68000 processor as the central processing unit, CPU, a Zilog Z80 as a sound controller, and a video system supporting hardware Sprite (computer graphics), sprites, Tile-based video game, tiles, and scrolling. It plays a List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Game Gear
The is an 8-bit fourth generation handheld game console released by Sega on October 6, 1990, in Japan, in April 1991 throughout North America and Europe, and during 1992 in Australia. The Game Gear primarily competed with Nintendo's Game Boy, the Atari Lynx, and NEC's TurboExpress. It shares much of its hardware with the Master System, and can play Master System games by the use of an adapter. Sega positioned the Game Gear, which had a full-color backlit screen with a landscape format, as a technologically superior handheld to the Game Boy. Though the Game Gear was rushed to market, its unique game library and price point gave it an edge over the Atari Lynx and TurboExpress. However, due to its short battery life, lack of original games, and weak support from Sega, the Game Gear was unable to surpass the Game Boy, selling 10.62 million units by March 1996. The Game Gear was discontinued in 1997. It was re-released as a budget system by Majesco Entertainment in 2000, under li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master System
The is an 8-bit third-generation home video game console manufactured by Sega. It was originally a remodeled export version of the Sega Mark III, the third iteration of the SG-1000 series of consoles, which was released in Japan in 1985 and featured enhanced graphical capabilities over its predecessors. The Master System launched in North America in 1986, followed by Europe in 1987, and then in Brazil and Korea in 1989. A Japanese version of the Master System was also launched in 1987, which features a few enhancements over the export models (and by proxy the original Mark III): a built-in FM audio chip, a rapid-fire switch, and a dedicated port for the 3D glasses. The Master System II, a cheaper model, was released in 1990 in North America, Australasia and Europe. The original Master System models use both cartridges and a credit card-sized format known as Sega Cards. Accessories for the consoles include a light gun and 3D glasses that work with a range of specially design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SG-1000
The is a home video game console manufactured by Sega. It was Sega's first entry into the home video game hardware business. Developed in response to a downturn in arcades starting in 1982, the SG-1000 was created on the advice of Hayao Nakayama, president of Sega's Japanese arm, and was released on July 15, 1983, the same day that Nintendo released the Family Computer in Japan. It also saw limited release in Australia and New Zealand. The SG-1000 was released in several forms, including the SC-3000 computer and the redesigned SG-1000 II released in 1984. The SG-1000 and the SC-3000 both support a library of 76 ROM cartridge games and 29 Sega My Card games. A third iteration of the console, the Sega Mark III, was released in 1985. It provided an improved custom video display processor over previous iterations and served as the basis for the Master System in 1986, Sega's first internationally released console. All SG-1000 games are fully compatible with the Mark III and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
