It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong … See more

Computers can be classified in a number of different ways, including:
By architecture
• Analog computer
• Digital computer See more

The term hardware covers all of those parts of a computer that are tangible physical objects. Circuits, computer chips, graphic cards, sound … See more

Software refers to parts of the computer which do not have a material form, such as programs, data, protocols, etc. Software is that part of a computer system that consists of encoded information or computer instructions, in contrast to the physical See more

Pre-20th century
Devices have been used to aid computation for thousands of years, mostly using See more

Computers have been used to coordinate information between multiple locations since the 1950s. The U.S. military's SAGE system was the first … See more

A computer does not need to be electronic, nor even have a processor, nor RAM, nor even a hard disk. While popular usage of the word … See more