Hard disk drive

The IBM 350 is widely considered to be the very first computer with a hard disk drive. Model 1 was announced on September 4, 1956. The data processing machine was used mainly for recording transactions for businesses.

IBM is an American technology company that was incorporated in New York on June 16, 1911 as the Computing- Tabulating- Recording Company (C-T-R). The company changed its name to International Business Machines Corporation on February 14, 1924.

Source: IBM

Credit: U. S. Army Red River Arsenal