Introduction of computer of the basic informations.
Computer is an electronic man made machine. The word of the computer is derived from the latrine word “COMPUTARE”, means to calculate.
A computer is an electronic device, which can perform contain mathematical calculations and logical operation at a very high speed.
In otherwords,a computer is an eletronic device that helps us to solve the problems.It can be programmed to accept data (output)and store it away
(in a secondary storage device) for safe keeping of future use to functin a computer system request.
ABACUS is known as the first calculating device developed by Chinese people before 3000 years ago. Charles Babbage is known as the “Father of computer. https://en.wikipedia.org/wiki/Charles_Babbage, because he gave basic idea about modern computer science.
Now days computer are being used in different field for various purpose. Such as in the field of science and technology, office ,college, hospital, hotel management, travel and tourism etc,it is versatile.
Characteristics of computer
There are many characteristics of computer, which have made them so powerful and useful.They are given below.
a) Speed: The computer operate at very high speed in the fact with the speed of light. The computer speed of preforming single operation
can be measured in term of fraction of a second different term that are used to denote the speed the given below.
Unite Parts of seconds In the power
Milliseconds = 1/1000 Sec = 10-3
Microseconds = 1/1000000 Sec = 10-6
Nanoseconds = 1/10000000000 Sec = 10-9
Picoseconds = 1/1000000000000 Sec = 10-12
b)Accuracy: If the program and data have no errors, the result given by the computer is 100% accurate. If mistake occurs in any calculation, they are due to manual error like feeding wrong data or mistake in the instruction given.
c)Consistency: Computer never get boarded or tired. It works frequently.
d)Storage Capacity: The storage capacity of a computer has made it a special device. A large amount of data can be stored in computer memory. The storing capacity of computer is expressed in byte. Byte are one characters e.g.(A,B,1,2,3 etc.)of data or information’s.
Different terms used to denote the storing capacity are:
8 Bits = 1 Character(A,B,1,2 etc.)
1 Character = 1 Byte
1024 Byte = 1 Kilo Byte(KB)
1024 KB = 1 Mega Byte(MB)
1024 MB = 1 Gaga Byte(GB)
1024 GB = 1 Tetra Byte(TB)
e)Versatile: A computer is a versatile machine and its use is limited only by your imagination. Now days computer are being used in different field for
various purpose. Such as in the filed of Science and Technology, Communication, Hospital, Travel and Tourism, Education and Hotel management etc.So,they are versatile.
Introduction of computer of the basic informations