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Computer & Information Department

History of Computer & Information Department

A Computer & Information is a general purpose device which can be programmed to carry out a finite set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the Computer & Information can solve more than one kind of problem. The essential point of a Computer & Information is to implement an idea, the terms of which are satisfied by Alan Turing's Universal Turing machine.

Conventionally, a Computer & Information consists of at least one processing element and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved.

A Computer & Information's processing unit executes a series of instructions that make it read, manipulate and then store data. Conditional instructions change the sequence of instructions as a function of the current state of the machine or its environment.

In order to interact with such a machine, programmers and engineers developed the concept of a user interface in order to accept input from humans and return results for human consumption.

The first electronic digital Computer & Informations were developed between 1940 and 1945 in the United Kingdom and United States. Originally, they were the size of a large room, consuming as much power as several hundred modern personal Computer & Informations (PCs).[1] In this era mechanical analog Computer & Informations were used for military applications.

Modern Computer & Informations based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple Computer & Informations are small enough to fit into mobile devices, and mobile Computer & Informations can be powered by small batteries. Personal Computer & Informations in their various forms are icons of the Information Age and are what most people think of as "Computer & Informations". However, the embedded Computer & Informations found in many devices from mp3 players to fighter aircraft and from toys to industrial robots are the most numerous.