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IEC Technical Specification 62700: DC Power supply for notebook computer is an IEC specification of a common standard for external laptop computer AC adapters.Laptops and AC adapters following this standard will have interchangeable power supplies, which will enable easy reuse of used power supplies (thereby reducing electronic waste) and make buying a new compatible power supply for a laptop ...
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 desktop computer power supply converts the alternating current (AC) from a wall socket of mains electricity to a low-voltage direct current (DC) to operate the motherboard, processor and peripheral devices. Several direct-current voltages are required, and they must be regulated with some accuracy to provide stable operation of the computer.
A PC speaker is a loudspeaker built into some IBM PC compatible computers. The first IBM Personal Computer , model 5150 , employed a standard 2.25 inch magnetic driven (dynamic) speaker. [ 1 ] More recent computers use a tiny moving-iron or piezo speaker instead. [ 2 ]
MediaMate speakers (either side of a CD player) The computer speakers from Bose was the "MediaMate" system, which was released in 1987. The MediaMate included magnetic shielding so that they could be placed near a CRT computer monitor without causing the monitor's image to distort. They had dual inputs and two sources (such as a CD player and a ...
The IBM PC AT came with a 192-watt switching power supply, significantly higher than the 130-watt XT power supply. According to IBM's documentation, in order to function properly, the AT power supply needed a load of at least 7.0 amperes on the +5 V line and a minimum of 2.5 amperes on its +12 V line.
Industrial version of the IBM PC XT [33] [34] Industrial Computer 5531: 5531-011 April 1984: Unknown ISA, 8-bit 8 3 Intel 8088: 4.77 256 KB 640 KB 1.2 MB none Industrial version of the IBM PC XT [33] [34] [35] Industrial Computer 5531: 5531-021 May 1985: Unknown ISA, 8-bit 8 3 Intel 8088: 4.77 256 KB 640 KB 1.2 MB 20 MB Industrial version ...
PC/104 is an embedded computer standard which defines both a form factor and computer bus. PC/104 is intended for embedded computing environments. Single-board computers built to this form factor are often sold by COTS vendors, which benefits users who want a customized rugged system, without months of design and paper work.