ABC-first computer пересказ

Previously, it was believed, that the first computers were the Colossus and the Electronic Numerical Integrator, which were built in 1943 and 1945, accordingly. But, in fact it was Atanasoff - Berry Computer built by John Atanasoff.

In the period from 1937 to 1942, Atanasoff built two small - scale, special - purpose electronic computers, which were the prototype of a larger ABC machine.

The ABC computer was partly constructed from 1939 to 1942. It had about three hundred vacuum tubes and use punched cards as input / output units.

Atanasoff's computer achieved accuracy thousand times higher than was possible. And It was the first machine to use electronic means to manipulate binary numbers.

Several concepts introduced by Atanasoff remain important for modern computers. For example, the use of capacities in dynamic random - access memories.

The recognition of Atanasoff's achievement was the result of a lawsuit filed in 1967 \by the Sperry Rand Corporation\ against Honeywell, Inc. It was shown, that parts of the patent were obtained from information transmitted to John Mauchly by Atanasoff.