Computer output microfilm is the product of copying information from electronic media onto microfilm. COM technology, with a history that dates back to the first patent for microphotography in 1839, has been used for doc... More »

A disk I/O error happens when a computer is unable to perform an input/output action (such as reading or copying data) when it is trying to access a drive or disk. This is often an indication of a drive's failure. More »

The four main components of a computer system are input devices, output devices, processing devices and the storage devices used to store data within the computer system. These are the hardware components of a computer s... More »

A computer processing device is the part of the computer that receives input, processes the input and gives output. In most computers, the central processing unit is the computer processing device. More »

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The four data processing functions of a computer are data input, processing, output and storage. Each process serves a distinct function in data handling, and each function makes use of specific hardware to facilitate it... More »

External computer parts are those that connect to the case, often to provide ways to input or output data. Most computers use a keyboard and mouse as external input devices and a monitor as an output device. Speakers, pr... More »

A computer peripheral is both an input and output device. These devices are the peripheral equipment component of today's digital computer systems. More »