Computer The Need Of Modern Life

Computer The Need Of Modern Life



Computer - the​ Need Of Modern Life
Computers simply mean a​ machine which can compute .​
Let us peek into the​ past and find out who were the​ geeks who thought about having a​ device that could perform calculative tasks by recognizing inputs and giving the​ appropriate outputs.
Abacus developed in​ 3000 BC can be called the​ first ever computer as​ it​ was a​ simple counting device .​
In 1941 a​ German engineer Konard Zuse developed a​ first programmable calculator using binary math and Boolean logic .​
UNIVAC was developed in​ 1951 and the​ real breakthrough came in​ 1952 when Texas Instrument developed the​ Integrated Circuit .​
In 1964,​ IBM introduced a​ mainframe computer called IBM 360 .​
Apple introduced Apple I​ in​ 1976 and Apple II in​ 1977 .​
The Computer that is​ familiar to​ most of​ us in​ terms of​ looks and functionality was unveiled in​ 1981 when IBM introduced the​ Personal Computer.
The main characteristics of​ a​ Computer are:
1 - It follows and is​ capable of​ following a​ special set of​ instructions.
2 - It can execute preset list of​ instructions generally known as​ a​ computer program.
The basic components which are essential to​ make a​ computer are:
1 - Input Device comprising of​ a​ Keyboard and Mouse which are used for entering instructions and data into the​ computer.
2 - Output device such as​ the​ Visual Display Unit or​ the​ Screen,​ Printer etc,​ which lets us see what the​ computer has done.
3 - the​ Central Processing Unit which is​ known as​ the​ brain of​ the​ Computer where all the​ processing of​ data is​ done and instructions are executed.
4 - Memory is​ the​ powerhouse of​ the​ computer which stores data and instructions in​ it.
5 - Mass Storage Devices are those which permanently stores and retain large amount of​ data .​
The common ones are floppy drives,​ CD-ROMs,​ Hard disks etc.
Computers come in​ various types designed for various purposes keeping in​ mind different categories of​ its users .​
According to​ their type they have different capabilities and are priced accordingly .​
The most popular computer is​ the​ Personal Computer which is​ for personal use of​ a​ single user at​ one time .​
They come in​ two types; a​ Desktop and a​ Laptop .​
Then there is​ an​ even smaller computer known as​ the​ Palmtop which can be held in​ the​ palms of​ the​ user .​
While these are the​ smaller and personal types of​ computers,​ the​ Mainframe,​ Workstation and Supercomputers are the​ larger high end computers used by big organizations.
Computers can perform a​ wide range of​ functions such as​ word processing,​ Digital Audio/Video composition,​ Internet,​ Communications and Networking and Desktop Publishing .​
Computers word processing capability includes automatic correction of​ spelling and grammar mistakes .​
Internet is​ one of​ the​ greatest inventions of​ human beings .​
It connects infinite number of​ computers in​ the​ manner of​ a​ web.
Ungodly amounts of​ information are available on​ the​ Internet and facilities of​ communications such as​ messaging,​ audio and video conferencing are available for free .​
Graphic engineers are using computers for editing audio and video compositions .​
No media production can be completed without the​ help of​ computers .​
Nowadays Computers are indispensable for Banking,​ Railway and Flight Reservations,​ Education and even defense of​ a​ country .​
There is​ hardly any sector of​ business which does not utilize Computers .​
Important and critical business tasks cannot be accomplished without the​ help of​ computers.
Just like human beings,​ computers are also prone to​ diseases which are created by attack of​ viruses .​
Proper back up of​ all data stored in​ computer must be maintained to​ provide back up in​ case of​ storage media failure .​
Computers must be secured from unauthorized use by passwords and must be protected from viruses by installing anti-virus programs in​ them .​
Computers,​ if​ safeguarded and used properly can create wonders for human kind and can produce results which are unachievable without them.




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