A peripheral is a device connected to a computer but is not a part
of it. It is often, but not always, partially or completely dependent on
the host.
Let me give you the three categories for it.
Input – Used to interact with, or send data to the computer.
The first computer mouse,
held by inventor Douglas
Engelbart, showing the wheels that make contact with the
working surface
From the 1940s until the late
1960s, typewriters were the main means of data entry and output for computing,
becoming integrated into what were known as computer terminals. Because of the limitations
of terminals based upon printed text in comparison to the growth in data
storage, processing and transmission, a general move toward video-based
computer terminals was affected by the 1970s, starting with the Datapoint 3300 in 1967.
The
keyboard remained the primary, most integrated computer peripheral well into
the era of personal computing until the introduction of the mouse as a consumer
device in 1984.
Output – which provides output to the user from the computer
In 1987, the VGA or Video Graphics Array was
first introduced by IBM for the new PS/2 computer system. The display
technology allowed for 256 different colors and 640 x 480 resolution. The VGA became the computer monitor standard.
Storage
– it is where the data were stored to processed by the computer
The IBM
engineers invented the first hard disk drive in 1953 at IBM San Jose California
Laboratory They termed it as Random Access Storage.
.
A USB flash drive is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface.
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