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First Mecanical Computer
The first computer developed was the Pascaline, a calculating machine,invented by Blaise Pascaline in 1642 -
Period: to
It All Began
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The Second Generation Computers: High- Level Programming Languages
The first high- level programming language designed for computers was Plankalkul, invented by Konrad Zuse in 1941
The Plankalkul features binary data structure types, thus supporting a loop- free programming style for logical or relational problems -
First Electro- Mechanical Computer
The first electro mechanical computer was called the Mark I computer,invented by Howard Aiken and Grace Hooper in 1944
The Mark I computer was 55 feet long, 8 feet high, weighed 5 tons and contained 760,000 seperate pieces. -
First Generation Computers: The Stored Program Computer
The first stored program computer was nicknamed 'Baby', invented by F.C. Williams and Tom Kilburn, on June 21 1948
The "Baby" kept only 1,024 bits in its main store, but it was the first computer to store a changeable user program in electronic memory and process it at electronic speed -
Third Generation Computers: MainFrames
The first mainframe super computer was invented by Seymour Cray in 1964
Mainframes are large computers with great processing speed -
Fourth Generation Computers: The Personal Computer
In 1975, Ed Roberts coined the term "personal computer" when he introduced the Altair 8800
The computer relied on a series of switches for inputting data and output data by turning on and off a series of lights
