Short history computers

Robert Mannell One of the earliest machines designed to assist people in calculations was the abacus which is still being used some years after its invention. In Blaise Pascal a famous French mathematician invented an adding machine based on mechanical gears in which numbers were represented by the cogs on the wheels.

Short history computers

A Brief History of the Computer Computers and computer applications are on almost every aspect of our daily lives. As like many ordinary objects around us, we may need clearer understanding of what they are. You may ask "What is a computer?

The history of computers starts out about years ago in Babylonia Mesopotamiaat the birth of the abacusa wooden rack holding two horizontal wires with beads strung on them.

Blaise Pasca l is usually credited for building the first digital computer in It added numbers entered with dials and was made to help his father, a tax collector. The basic principle of his calculator is still used today in water meters and modern-day odometers.

Instead of having a carriage wheel turn the gear, he made each ten-teeth wheel accessible to be turned directly by a person's hand later inventors added keys and a crankwith the result that when the wheels were turned in the proper sequences, a series of numbers was entered and a cumulative sum was obtained.

Short history computers

The gear train supplied a mechanical answer Short history computers to the answer that is obtained by using arithmetic. This first mechanical calculator, called the Pascaline, had several disadvantages. Although it did offer a substantial improvement over manual calculations, only Pascal himself could repair the device and it cost more than the people it replaced!

In addition, the first signs of technophobia emerged with mathematicians fearing the loss of their jobs due to progress. A step towards automated computing was the development of punched cardswhich were first successfully used with computers in by Herman Hollerith and James Powers, who worked for the US.

They developed devices that could read the information that had been punched into the cards automatically, without human help.

Because of this, reading errors were reduced dramatically, work flow increased, and, most importantly, stacks of punched cards could be used as easily accessible memory of almost unlimited size.

Furthermore, different problems could be stored on different stacks of cards and accessed when needed. These advantages were seen by commercial companies and soon led to the development of improved punch-card using computers created by International Business Machines IBMRemington yes, the same people that make shaversBurroughs, and other corporations.

These computers used electromechanical devices in which electrical power provided mechanical motion -- like turning the wheels of an adding machine. Such systems included features to: New weapons were made for which trajectory tables and other essential data were needed.

InJohn P. Mauchlyand their associates at the Moore school of Electrical Engineering of University of Pennsylvania decided to build a high - speed electronic computer to do the job. The two women in the photo were programmers. ENIAC was therefore about 1, times faster then the previous generation of relay computers.

ENIAC used 18, vacuum tubes, about 1, square feet of floor space, and consumed aboutwatts of electrical power. The executable instructions making up a program were embodied in the separate "units" of ENIAC, which were plugged together to form a "route" for the flow of information. These discoveries were the magnetic core memory and the Transistor - Circuit Element.

Brief History Of Computer

These technical discoveries quickly found their way into new models of digital computers.The following brief history of computing is a timeline of how computers evolved from their humble beginnings to the machines of today that surf the Internet, play games and stream multimedia in.

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A Brief History of the Computer Robert Mannell One of the earliest machines designed to assist people in calculations was the abacus which is still being used some years after its invention.
A Short History of Computers and Computing It is a convenient and efficient means of communication, education, as well as entertainment. The development of computer technology was a gradual process, and it dates back to more than 2, years ago.

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The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the s. The launch of the IBM Personal Computer coined both the term Personal Computer and PC.A personal computer is one intended for interactive individual use, [citation needed], as opposed to a mainframe computer where the end user's requests are filtered.

An illustrated history of computers with over 50 rare photos. A Brief History of the Computer. Computers and computer applications are on almost every aspect of our daily lives. As like many ordinary objects around us, we . to the computer. Mid s: Ada Lovelace Ada Lovelace, daughter of the poet Lord Byron, worked with Babbage on the Analytical Engine Programmed Analytical Engine using punched cards Considered first computer programmer Ada programming language A Short History of Computing.

Short History of Computers