Development of computer

Prepared byZiyad Siso

Content Computer introduction

The word "computer" was first used

Computer history First generation Second generation Third generation

Personal Computer Types

Laptop computer

Desktop model

Palmtop

Conclusion Sources

Computer introduction A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You can use a computer to type documents, send email, and browse the Web. You can also use it to accounting, database management, presentations, games, and more.

The word "computer" was first used The word "computer" was first recorded as being used in 1613 and was originally was used to describe a human who performed calculations or computations. The definition of a computer remained the same until the end of the 19th century when people began to realize machines never get tired and can perform calculations much faster and more accurately than any team of human computers ever could.

Computer history The first person to make the computer that runs and stores internal information and programs is Alan Turing in 1945. But, the first person to create and come up with the idea of computerized products is Charles Babbage in the 1840s.

First generation

1937 – 1946 - In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC). In 1943 an electronic computer name the Colossus was built for the military, this computer weighed 30 tons, and had 18,000 vacuum tubes which was used for processing.

Second generation

1947 – 1962 - This generation of computers used transistors instead of vacuum tubes which were more reliable. In 1951 the first computer for commercial use was introduced to the public; the Universal Automatic Computer (UNIVAC 1). In 1953 the International Business Machine (IBM) 650 and 700 series computers made their mark in the computer world.

Third generation

In 1963 - this generation computers became smaller, more powerful more reliable and they are able to run many different programs at the same time. In1980 Microsoft Disk Operating System (MS-Dos) was born and in 1981 IBM introduced the personal computer (PC) for home and office use

Desktop model

A computer designed to fit comfortably on top of a desk, typically with the monitor sitting on top of the computer. Desktop model computers are broad and low, desktop model computers are generally limited to three internal mass storage devices.

Personal Computer Types

A small, portable computer -- small enough that it can sit on your lap. Nowadays, laptop computers are more frequently called notebook computers.

Laptop computer

Palmtop

A small computer that literally fits in your palm. Compared to full-size computers, palmtops are severely limited, but they are practical for certain functions such as phone books and calendars.

It is important to make technology decisions at the right time and for the right reasons. Good business decisions provide good people with appropriate supporting tools so they can produce good products. When it comes to software development, dealing with tough language issues head-on is one requirement for today’s visionary manager.

Sources

www.gcflearnfree.org/computerbasics/1.

www.computerhope.com/issues/ch000984.htm.

homepage.cs.uri.edu/faculty/wolfe/book/Readings/Reading03.htm.

people.bu.edu/baws/brief%20computer%20history.html.

www.cs.cmu.edu/~fgandon/lecture/uk1999/computers_types/

http://archive.adaic.com/docs/reports/lawlis/7.htm

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