COMPUTER

learnedmooseupvalleyElectronics - Devices

Nov 7, 2013 (4 years and 6 days ago)

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COMPUTER


Computer stands for common oriental
machine particularly used in technology
education research. computer invented by
Charles Babbage. It is an electronic machine
device which can bring use for store the
data by doing some mathematic and logical
operation and desired output. computer
show the acquired result, high speed and
more delignce.There are three device used
in computer one is input device, storage
device and output device.some of the basic
natural language that we use
english,hindi,oria etc These are the
languages used to communicate among
varies categories of persons.But how we
shall communicate with our computer.our
computer doen’t understand any of these
natural language.our computer only knows
binary language that is ( 0 1).

Characteristics of computer



i) Speed


ii) Reliability


iii) Storage capacity


iv) Increase Productivity


v) Accuracy


vi) Versatility


vii) Communication


viii) Diligence


CLASSIFICATION OF COMPUTER


Analog computer


Digital computer


Hybrid computer

TYPES OF COMPUTER


DESKTOP COMPUTER:
-
Desktop computer is a home
computer.It is used in the
school,institude,rallway
reservation,airline,company
etc.

LAPTOP COMPUTER


A
laptop

is a
personal computer

designed for
mobile use

and small
and light enough to sit on a
person's
lap

while in use.
[1]

A
laptop integrates most of the
typical components

of a desktop
computer, including a
display
, a
keyboard
, a pointing device (a
touchpad
, also known as a
trackpad, and/or a
pointing stick
),
speakers, and often including a
battery, into a single small and
light unit. The
rechargeable
battery

(if present) is charged
from an
AC adapter

and typically
stores enough energy to run the
laptop for three to five hours in its
initial state, depending on the
configuration and power
management of the computer

MICRO COMPUTER


MICROCOMPUTER:
-
Microcomputer is at
lowest end of the
computer range in terms
of speed and store
capacity. Its cup is a
microprocessor. The first
microcomputers were
built of 8 bit
microprocessor chip.
Example of
microcomputers are
IBMPC,PC
-
AT.

MINICOMPUTER


MINICOMPUTER:
-
Mini
computer is designed to
support more than one user at
a time.It process large storage
capacityand operates at a
higher speed. The mini
computer is used in multi
-
user
system in which varies users
can work at the same time.
This type of computers is
generally used for processing
large volume of data in an
organization.There are also
used as serves in local area
networks(LAN).Example of
minicomputer is
-
PGP
-
11.

NOOTBOOK COMPUTER


A notebook computer that
weighs in a range from five to
seven pounds. The term
originated when laptops were
routinely more than 10
pounds, and those that
became lighter were placed in
a special "notebook" category.
In practice, notebook
computer and laptop computer
are synonymous. Portable
computers that weigh less
than four pounds may be
called a "subnotebook" or
"mini laptop

DIGITAL DIARY



Digital diaries

are
electronic
organizers

capable of storing
hundreds or thousands of
memo, address, and schedule
records. They were produced
by
Casio

in the early and mid
1990s, but have since been
entirely superseded by Mobile
Phones and PDA's.


Since their debut, Casio digital
diaries hosted a common set
of features. Some models had
extra features, while other
ones, especially the earlier
models, lacked some of them

PALAMTOP
-
COMPUTER


PALAMTOP:
-
A
Handheld PC
,
or
H/PC

for short, is a term
for a
computer

built around a
form factor which is smaller
than any standard
laptop
computer
. It is sometimes
referred to as a
Palmtop
.
The first handheld device
compatible with desktop IBM
personal computers of the
time was the
Atari Portfolio

of
1989

MAINFRAME
-
COMPUTER


MAINFRAME:
-
Mainframe is
another form of computer
system, that is generally more
powerful than a typical mini
computer. Mainframe
themselves may very widely in
cost and capacity. They are
used in large organizations for
large scale jobs. They are also
used as controlling nodes in
wide area networks WAN).
Example of mainframes are
DEC,ICE,ANDIBM
-
40.

SUPERCOMPUTER


SUPERCOMPUTER:
-
At the end of
the size and capability scale are
the supercomputers. This systems
are the largest, fastest and the
most expensive computers in the
world. They are used for complex
scientific and defiance
applications. super computers are
mainly being used for whether for
casting, biomedical resech,remote
senging,aircraf design and other
areas of science and technology.
Example of super computers are
-
CRAYYMP,CRAY2,NECSX
-
3,CRAYXMP AND PRAM from
India.