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Brief History of Computer

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History of Computer

“Computer” is probably one of the most heard words nowadays. When we hear this word, we can picture a monitor with a rectangular box, keyboard and a mouse in technical sense. But literally what is computer? A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.
Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.
But the computer that we are used to seeing now is not a result of one day. It’s a result of many years. Many scholars have shared their idea to develop this device, though Charles Babbage is called the main person behind the invention of computer. A brief history of computer is provided below:
I would divide the history behind computer into two parts. First one is history before birth of Jesus and second one is history after birth of Jesus.
History before birth of Jesus: Actually there are not many events in this period that contribute to today’s computers but this period has the base event for today’s computers. 5000 years ago, a simple device was invented which was used for counting. The device is called “Abacus” which is considered as a base for today’s high-tech computers.

The word abacus itself is a Latin word, which comes from Greek άβακασ (board or table). The Greek word probably comes from the Semitic abk, which means sand, dust or to wipe the dust,…...

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