the military
Jon von Neumann designed the first computer virus in 1949. His design was based on his theories about a self-reproducing computer program.
Prepare firing tables for artillery and naval gunfire.
Osborn-1, designed by Adam Osborn.
The first computer closely related to today's computer was invented by Charles Babbage between 1833 and 1871. Babbage was a British mathematician. Konrad Zuse was the inventor of the first programmable computer.
Ada lovelace was lord byrons daughter, she 'designed' the first computer blueprint with Charles Babbage.
the military
It depends what you mean by the first computer; arguably the first was the "difference engine" designed by Charles Babbage. This was a mechanical computer, a modern version, built to Babbage's design is 3.4 metres long by 2.1 metres high.
The first actual working computer was designed by Raytheon Electronics in the late 40's.
In USA
Depends on what you mean by "modern".
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50cm
Charles BabbageWe could argue that the first computer was the abacus or its descendant, the slide rule, invented by William Oughtred in 1622. But the first computer resembling today's modern machines was the Analytical Engine, a device conceived and designed by British mathematician Charles Babbage between 1833 and 1871.
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charles babbages
The first computer was invented in 1946
Yes, the computer as we know it today is a modern invention. The first electronic digital computer was developed in the mid-20th century and has since evolved significantly to become an integral part of modern society.