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Prior to the proliferation of MEMS microphones, nearly all cell-phone, computer, PDA and headset microphones were electret types. [citation needed] Unlike other capacitor microphones, they require no polarizing voltage, but often contain an integrated preamplifier that does require power.
Integrated webcams and microphones simplify remote communication, enhancing the system's utility for online family interactions. ... Far from being relics of the '80s, desktop computers have ...
The microphone arm of headsets may carry an external microphone or be of the voice tube type. External microphone designs have the microphone housed in the front end of the microphone arm. Voicetube designs are also called internal microphone design, and have the microphone housed near the earpiece, with a tube carrying sound to the microphone.
A user presses a key which transfers information to a computer. In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, computer mice, scanners, cameras, joysticks, and microphones.
Machine hearing, also known as machine listening or computer audition is the ability of a computer or machine to take in and process sound data such as speech or music. [8] [9] This area has a wide range of application including music recording and compression, speech synthesis and speech recognition. [10]
Over time some traditional desktop computers have been replaced with thin clients utilizing off-site computing solutions like the cloud. [52] As more services and applications are served over the internet from off-site servers, local computing needs decrease, this drives desktop computers to be smaller, cheaper, and need less powerful hardware.
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Desktop personal computers have a monitor, a keyboard, a mouse, and a computer case. The computer case holds the motherboard, fixed or removable disk drives for data storage, the power supply, and may contain other peripheral devices such as modems or network interfaces. Some models of desktop computers integrated the monitor and keyboard into ...