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CD G
CD+G (also known as CD-G, CD+Graphics, and TV-Graphics) is an extension of the compact disc standard that enables the display of low-resolution graphics alongside audio content when played on a compatible device. This functionality is most commonly associated with karaoke systems, which use CD+G discs to display on-screen lyrics synchronized with music playback. The CD+G format was defined by Philips and Sony as an extension of the Red Book specification for audio CDs. The first commercially released CD to utilize the CD+G format was '' Eat or Be Eaten'' by Firesign Theatre in 1985. A related format, CD+EG, offers enhanced graphical capabilities but has seen little adoption in commercial releases. Design The CD+G format takes advantage of the six Compact Disc subcode channels R through W (which are unused in standard Compact Disc Digital Audio), to provide 6 extra bits in CD+G for graphics information per 24 bytes of audio data. When a disc is read at normal speed, these six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palette (computing)
In computer graphics, a palette is the set of available colors from which an image can be made. In some systems, the palette is fixed by the hardware design, and in others it is dynamic, typically implemented via a color lookup table (CLUT), a correspondence table in which selected colors from a certain color space's color reproduction range are assigned an index, by which they can be referenced. By referencing the colors via an index, which takes less information than needed to describe the actual colors in the color space, this technique aims to reduce data usage, including processing, transfer bandwidth, RAM usage, and storage. Images in which colors are indicated by references to a CLUT are called indexed color images. Description As of 2019, the most common image colorspace in graphics cards is the RGB color model with 8 bits per pixel color depth. Using this technique, 8 bits per pixel are used to describe the luminance level in each of the RGB channels, therefore 24 bit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GamePro
''GamePro'' was an American multiplatform video game magazine media company that published online and print content covering the video game industry, video game hardware and video game software. The magazine featured content on various video game consoles, personal computers and mobile devices. GamePro Media properties included ''GamePro'' magazine and their website. The company was also a part subsidiary of the privately held International Data Group (IDG), a media, events and research technology group. The magazine and its parent publication printing the magazine went defunct in 2011, but is outlasted by Gamepro.com. Originally published in 1989, ''GamePro'' magazine provided feature articles, news, previews and reviews on various video games, video game hardware and the entertainment video game industry. The magazine was published monthly (most recently from its headquarters in Oakland, California) with October 2011 being its last issue, after over 22 years of publication. ... [...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] |
Sega CD
The Sega CD, known as in most regions outside North America and Brazil, is a CD-ROM accessory and format for the Sega Genesis produced by Sega as part of the fourth generation of video game consoles. Originally released in November 1991, it came to North America in late 1992, and the rest of the world in 1993. The Sega CD plays CD-based games and adds hardware functionality such as a faster CPU and a custom graphics chip for enhanced Sprite (computer graphics), sprite scaling and rotation. It can also play Compact Disc Digital Audio, audio CDs and CD+G discs. Sega sought to match the capabilities of the competing TurboGrafx-16#TurboGrafx-CD/CD-ROM², PC Engine CD-ROM² System, and partnered with JVC to design the Sega CD. Sega refused to consult with their American division until the project was complete, fearful of leaks. The Sega CD was redesigned several times by Sega and was also licensed to third parties, including Pioneer Corporation, Pioneer and Aiwa who released home au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philips CD-i
The Compact Disc-Interactive (CD-I, later CD-i) is a digital optical disc data storage format as well as a hardware platform, co-developed and marketed by Dutch company Philips and Japanese company Sony. It was created as an extension of CDDA and CD-ROM and specified in the '' Green Book'' specifications, co-developed by Philips and Sony, to combine audio, text and graphics. The two companies initially expected to impact the education/training, point of sale, and home entertainment industries, but the CD-i is largely remembered today for its video games. CD-i media physically have the same dimensions as CD, but with up to of digital data storage, including up to 72 minutes of full motion video. CD-i players were usually standalone boxes that connect to a standard television; some less common setups included integrated CD-i television sets and expansion modules for personal computers. Most players were created by Philips; the format was licensed by Philips and Microware for us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PC-FX
The is a 32-bit home video game console co-developed by NEC and Hudson Soft. Released in December 1994, it is based on the NEC V810 CPU and CD-ROM, and was intended as the successor to the PC Engine (known overseas as the TurboGrafx-16). Unlike its predecessor, the PC-FX was only released in Japan. Its form factor is like that of a tower PC, intended to be similarly upgradeable. The PC-FX was uncompelling in the marketplace due to lack of a 3D polygon-based graphics chip, high price, and limited developer support and is considered a commercial failure. It was discontinued in February 1998 and NEC subsequently exited the home video game console business. History In 1987, NEC partnered with game publisher Hudson Soft to create the PC Engine, released internationally as the TurboGrafx-16. The PC Engine was successful in Japan, but the TG-16 struggled in overseas markets. The success of the PC Engine created a strong relationship between NEC and Hudson, who began work on a tru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbo Duo
The TurboDuo (later rebranded as simply the Duo) is a fourth-generation video game console developed by NEC Home Electronics and Hudson Soft for the North American market. It combines the capabilities of the TurboGrafx-16 and its CD-ROM drive add-on, the TurboGrafx-CD, into a single, redesigned unit. Initially test-marketed in Los Angeles in October 1992 before a nationwide rollout in May 1993, TurboDuo is the localized version of the Japanese PC Engine Duo, which was released in September 1991. Compared to TurboGrafx-16 and the TurboGrafx-CD, TurboDuo has an updated BIOS and 192 KB of additional RAM. The RAM increase and BIOS update afford the TurboDuo and PC Engine Duo compatibility with all CD-ROM² and Super CD-ROM² based software (Japanese and North American). Like the TurboGrafx-CD, the TurboDuo can read Audio CDs and CD+G discs. TurboDuo, however, cannot read PC Engine HuCards without modification or an adapter. With a HuCard adapter and an Arcade Card Duo, the TurboDu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TurboGrafx-16
The TurboGrafx-16, known in Japan as the , is a home video game console developed by Hudson Soft and manufactured by NEC. It was released in Japan in 1987 and in North America in 1989. The first console of the fourth generation of video game consoles, fourth generation, it launched in Japan to compete with Nintendo's Family Computer, Famicom, but its delayed U.S. debut placed it against the more advanced Sega Genesis and later the Super Nintendo Entertainment System, Super NES. The TurboGrafx-16 features an 8-bit computing, 8-bit CPU paired with dual 16-bit graphics processors, and supports up to 482 on-screen colors from a palette of 512. The "16" in the console’s North American branding was criticized as misleading. With dimensions of , the PC Engine remains the smallest major home console ever released. Games were initially released on HuCard cartridges, but the platform later supported additional formats requiring separate hardware: TurboGrafx-CD (''CD-ROM²'' in Japan) ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subcode
Subcode or subchannel data (called ''control bytes'' in the CD-ROM specification) is data contained in a compact disc (CD) in addition to digital audio or user data, which is used for control and playback of the CD. The original specification was defined in the Red Book standard for Compact Disc Digital Audio, though further specifications have extended their use (including the CD-ROM, CD Text and CD+G specifications). Structure Subchannel data is multiplexed with the digital audio or user digital data. The data in a CD are arranged in frames. A frame comprises 33 bytes, of which 24 bytes are audio or user data, eight bytes are error correction (CIRC-generated), and one byte is for subcode. Frames are arranged in sectors, which contain 98 frames each. The subcode bytes of the first two frames of a sector are used as two synchronization words. The subcode bytes of the remaining 96 frames of a sector are split into eight 96-bit long subcode channels (also called subchannels or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
