History of Computers

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Charles Babbage

Father of Computers.

Herman Hollerith

Father of IBM.

ENIAC

Machine developed by Mauchly and Eckert that was the first true electronic digital computer.

Tabulating Machine

Machine that used punched card of 80 columns and 12 rows and was standardized by Herman Hollerith.

Jacquard Weaving Loom

Machine that used punched cards to create designs in the textile industry.

Integrated Circuit

Third Generation technology characteristic that replaced transistors.

IC

Third Generation technology characteristic.

Magnetic Disk

Third Generation-storage outside computer.

Ada

Programming language of late 1970s.

COBOL

Second Generation language used for business applications.

FORTRAN

Second Generation language used for scientific applications.

Transistors

Second Generation technology characteristic.

Magnetic Core

Second Generation-storage inside computer.

Magnetic Tape

Second Generation-storage outside computer.

PC

Computer developed in Fourth Generation.

Vacuum Tubes

First Generation technology characteristic.

Magnetic Drum

First Generation-storage inside computer.

Punched Card

First Generation-storage outside computer.

UNIVAC

First business computer.

Ada Byron Lovelace

First computer programmer.

Tabulating Machine

First electromechanical counting machine that led to the formation of the Tabulating Machine Company.

La Pascaline

First gear-driven, mechanical adding machine that could add and subtract.

Stepped Reckoner

First mechanical calculator.

LSI/VLSI

Fourth Generation technology characteristic that contained transistors on a single chip.

Difference Engine

Invented by Babbage as a gear-driven machine powered by steam.

Abacus

Invented by Egyptians.

Stepped Reckoner

Invented by Leibniz to add, subtract, multiply and divide.

Slide Rule

Invented by Oughtred to calculate arithmetic with both decimal and whole numbers.

MARK I

Machine developed by Howard Aiken that was partly electronic and partly mechanical.

EDVAC

Machine developed by John von Neumann that was the first stored-program computer.

UNIVAC

Used to predict the 1951 Presidential election.

Ada Byron Lovelace

Worked with Babbage's machines and had programming language named after her.


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