The earliest know computer is the abacus, invented by the Chinese in 2600 B. Not many people consider this to be a computer, but by definition, it is.
One of the more recent early computers was built by Herman Hollerith, who invented a machine that used a system of cards with holes in them.
It was the first all electronic computer, and required so much electricity that when the power was turned on, the lights around Philadelphia dimmed.
The ENIAC was used by the United States Military to produce trajectory tables.
Early Computers: A History of Computing Computers are a part of our everyday lives, but about two decades ago, computers were just beginning to enter homes.
Many people don’t realize what the computer evolved from, and the speed at which computer technology has taken to arrive to what it is today.
In1980 Microsoft Disk Operating System (MS-Dos) was born and in 1981 IBM introduced the personal computer (PC) for home and office use.
Three years later Apple gave us the Macintosh computer with its icon driven interface and the 90s gave us Windows operating system.
During this generation of computers over 100 computer programming languages were developed, computers had memory and operating systems.
Storage media such as tape and disk were in use also were printers for output.