What are Peripheral devices
ANSWER
Peripheral
devices are hardware components that are attached to a computer in order to
expand its abilities and perform additional features. They are internal or
external devices that connect directly to a computer but do not contribute to
the computer's primary function, such as computing. They are not part of the
essential computer as are the processor, and the memory. They help end users to
access and use the functionalities of a computer by inputting commands, viewing
the screen and printing out documents and pictures. Some are mounted in the
same case with the main part of the computer like the hard disk drive or CD-ROM
drive while other peripherals are outside the computer case, e.g. the printer
and image scanner, attached by a wired or wireless connection.
Computer peripherals, or peripheral
devices, are sometimes called "I/O devices" because they provide
input (keyboard / mouse) and output (monitor / printer) for the computer. Some
peripherals, e.g. external hard drives, provide both input and output for the computer.
They all require a software called device driver to communicate with the
processor. Device driver acts as a
translator, converting general commands from an application into specific
commands that the device understands.
Backup is
the procedure for making extra copies of data in case the original is lost or
damaged. It is the process of copying and archiving of computer data so it may
be used to restore the original after a data might have lost.Restore on the other hand means to bring back to its original
condition, place or position. To bring back what was lost to its proper
/original position or place.
So backup
and restore is a feature of Windows Operating System used to backup a computer’s
file in case if there should be a data loss in the future time and to return
the backed up files, to their original position (back to the computer ). It allows
users to create backups and restore from backups. This feature was depreciated in Windows 8 OS
and was completely removed in Windows 8.1 and was replaced with file history.
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