Computer: The Four Generation Of Computers

What is a computer? It is an electronic device that manipulates information or data. It has the ability

to store, retrieve and process data, typically in binary form, according to the instruction given to it

in a variable program. There are two basic parts of computer, the Hardware which is the physical

structure and the Software which is any set of instructions that tells the hardware what to do. The uses

of computers now is endless. A person may utilize it for typing documents, sending emails, browse the

internet, handling spreadsheets, for games and so much more.

There are 4 generation of computers. The First Generation of Computer were massive in size

and used vacuum tubes that resembles like an incandescent light bulb and manual switches. Some

of the most important first generation includes the Z1 and Z3, the Colossus machines, the Atanasoff-
Berry Computer (ABC), ENIAC and UNIVAC. The Second Generation Computers uses transistors, are

tiny electronic switches which is more powerful, more reliable and smaller. The Third Generation

Computers developed an integrated circuits are chips that contain large number of tiny transistors that

are integrated into a semi conducting material called silicon. The Fourth Generation Computers are

integration of circuit that made the development of the microprocessor.

Types of Computer that we use nowadays varies what kind of life style we have. It is readily available

for purchase by the public in most retail outlets. We may find them in different forms, shapes, and

sizes. It depends also on how much one would like to spend in a computer. Some of them includes the

desktop computers, notebook computers, tablets and smartphones and so much more. It will surely

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...n.org there are 4 things to know before you go shopping for a computer.

1. Educate yourself. You must come prepared when you go to a store. In every store there will be

computer specialist that can help you determine what computer is the best. But keeping in mind,

they are around to make their sales. Ultimately, you have to know what you really need for your

life style. Consider the feature including the memory, the hard drive, the operating system and the

processor.

2. Choose where you shop wisely. There are many places that sells computer. Don’t be afraid to

compare prices. The best deal you can get the better.

3. Understand the Pricing and Advertisements. Some advertisements are just too good to be true.

Look carefully what that that computer includes and what not.

4. Beware of hidden costs. Fine prints can be really tricky. Be very cautious of it.