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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 ]
Sound cards for IBM PC–compatible computers were very uncommon until 1988. For the majority IBM PC users, the internal PC speaker was the only way for early PC software to produce sound and music. [3] The speaker hardware was typically limited to square waves.
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.
RealSound is a patented (US US5054086 A) technology for the PC created by Steve Witzel of Access Software during the late 1980s. [1] RealSound enables 6-bit [2] digitized pulse-code modulation (PCM)-audio playback on the PC speaker by means of pulse-width modulation (PWM) drive, allowing software control of the loud speaker's amplitude of displacement.
Unlike a speaker used with a sound card, the PC speaker is only meant to produce square waves to produce sounds such as beeping. Modern computers utilize a piezoelectric buzzer or a small speaker as the PC speaker. PC speakers are used during Power-on self-test to identify errors during the computer's boot process, without needing a video ...
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Computer speakers range from a basic pair of speakers to 7.1 surround sound speakers with advanced features. The high-end surround sound speakers give the best sound for computer gaming but are rather expensive. The price ranges from $350.00 for a top of the line set to $4.99 for a set of rather cheap speakers.
The new speaker may have averted a government shutdown this week, but the major showdown over spending has merely been punted till January. Speaker Johnson’s spending test is just beginning Skip ...