Multimedia Personal Computer - definição. O que é Multimedia Personal Computer. Significado, conceito
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O que (quem) é Multimedia Personal Computer - definição

LOUDSPEAKER WITH BOX OR A SET OF SUCH USED AS AN EXTERNAL COMPUTER PERIPHERAL; USUALLY INCLUDES AN AMPLIFIER
Multimedia speaker; Multimedia speakers; Computer speaker

Multimedia Personal Computer      
<multimedia> (MPC) A specification published by the Multimedia PC Marketing Council in 1990 to encourage the adoption of a standard multimedia computing platform. In May 1993, the MPC Marketing Council published a new specification called MPC Level 2 Specification as an enhanced multimedia computer standard. The original MPC specification, now also known as the MPC Level 1 Specification, continues in full effect. The appearance of the MPC or MPC2 certification mark on a computer system or upgrade kit indicates that the hardware meets the corresponding (Level 1 or Level 2) MPC Marketing Council specification. Software bearing the Multimedia PC mark has been designed to work on Multimedia PC licensed hardware. By establishing a standard platform, certifying hardware compliance and providing inter-operability between software and hardware for the consumer, the MPC Marketing Council is encouraging widespread use of multimedia applications and hardware. (1997-01-19)
Computer-assisted personal interviewing         
SURVEYING TECHNIQUE THAT USES A COMPUTER BASED QUESTIONNAIRE
Computer Assisted Personal Interviewing; Computer assisted personal interviewing; Computer-assisted self interviewing
Computer-assisted personal interviewing (CAPI) is an interviewing technique in which the respondent or interviewer uses an electronic device to answer the questions. It is similar to computer-assisted telephone interviewing, except that the interview takes place in person instead of over the telephone.
History of personal computers         
  • 1975: [[Altair 8800]]
  • Apr. 1977: [[Apple II]]}}
  • Atari 800
  • 1985: [[Atari ST]]
  • The CD-ROM and CD-RW drives became standards for most personal computers.
  • 1982: [[Commodore 64]]
  • 1970: [[Datapoint 2200]].}}
  • Compaq DeskPro 386S, IBM PC compatible computer with Intel 80386 processor}}
  • HP Vectra 286/12 PC, IBM PC compatible computer with Intel 80286 processor}}
  • 1975: [[IBM 5100]]
  • 1981: [[IBM 5150]]}}
  • ThinkPad 720
  • 1998: [[iMac G3]] in "Bondi Blue"
  • Apple Macintosh]]}}
  • MikroMikko 4 TT, IBM PC compatible computer with Intel 80486 processor}}
  • 1990: NeXTstation
  • 200px
  • Oct. 1977: [[Commodore PET]]
  • Nov. 1977: TRS-80 Model I (with optional Expansion Interface beneath the monitor)
  • 1979: Texas Instruments' TI-99/4
  • The three computers whose makers ''Byte'' magazine referred to as the "1977 Trinity" – from left to right: the Commodore PET 2001, the Apple II, and the Tandy/Radio Shack TRS-80 Model 1
  • 1973: [[Xerox Alto]]
  • Sinclair ZX Spectrum
HISTORY OF THE CONSUMER PERSONAL COMPUTER
History of the PC; History of the personal computer; History of personal computer; Microcomputer revolution; 1990s computer; Personal computer revolution; PC revolution; 1977 trinity; 1977 Trinity
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.

Wikipédia

Computer speakers

Computer speakers, or multimedia speakers, are speakers sold for use with computers, although usually capable of other audio uses, e.g. for an MP3 player. Most such speakers have an internal amplifier and consequently require a power source, which may be by a mains power supply often via an AC adapter, batteries, or a USB port. The signal input connector is often a 3.5 mm jack plug (usually color-coded lime green per the PC 99 standard); RCA connectors are sometimes used, and a USB port may supply both signal and power (requiring additional circuitry, and only suitable for use with a computer). Battery-powered wireless Bluetooth speakers require no connections at all. Most computers have speakers of low power and quality built in; when external speakers are connected they disable the built-in speakers. Altec Lansing claims to have created the computer speaker market in 1990.

Computer speakers range widely in quality and in price. Computer speakers sometimes packaged with computer systems are small, plastic, and have mediocre sound quality. Some computer speakers have equalization features such as bass and treble controls. Bluetooth speakers can be connected with a computer by using an Aux jack and compatible adaptor.

More sophisticated computer speakers can have a subwoofer unit to enhance bass output. The larger subwoofer enclosure usually contains the amplifiers for the subwoofer and the left and right speakers.

Some computer displays have rather basic speakers built-in. Laptop computers have built-in integrated speakers, usually small and of restricted sound quality to conserve space.