• 1964

Hardware Description

In April 1964, NEC announced the N204A and N204B magnetic tape units together with the NEAC-2200. The N204A used 3/4 inch wide tape, and the N204B used 1/2 inch wide tape. Their tape drive system was the vacuum capstan type, and their tape shock absorber mechanism was the vacuum chamber type. These units used the NRZI recording system.