First we need to know what is a
computer. The computer is combination of hardware and software. We cant use
only hardware or software. They are combination working. In other words A computer is an electronic
device that manipulates information, or data. It has the ability to store,
retrieve, and process data.
History of computer. First type of
computer is counting rods. People cant believe it. But it is data processing. Invented
the first mechanical computer in the early 19th century. Mechanical analog
computing reached its zenith with the differential analyzer, built by Hazen and
Vannevar Bush at MIT starting in 1927.
Type of computer. Actual personal
computers can be generally classified by size and chassis/case. Computer has tower model. The main advantage
of tower models is that there are fewer space constraints, which makes
installation of additional storage devices easier. Desktop model: A computer designed to fit
comfortably on top of a desk, typically with the monitor sitting on top of the
computer. And laptop, subnotebook, hand-held, palmtop, PDA computer etc.
Parts of computer. System unit/RAM,
CPU etc/, Hard disk drive, CD and DVD drives, Mouse, Keyboard, Monitor are part
of computer. They are join to create computer.
We are using everyday in computer and that is simple
necessary. In the current world, it’s almost impossible
to imagine that someone can live without
computers. Computers have become an electronic device of almost every day use
for individuals of every age. /245 word/
