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Difference Engine
A difference engine is a mechanical calculator designed to calculate polynomial functions at high speed. It had been created in 1822 by Charles Babbage. -
Colossus
Colossus was the world's first electronic digital computer that was programmable. The Colossus computers were developed for British code breakers during World War II. It is a extremely large computer that is designed to decode encrypted messages. -
Floppy Disk
A floppy disk also called a diskette, is a storage medium that is converted to a thin and flexible disk. The floppy disk can be put in a floppy disk drive to run it.
