NEC completed the 542 magnetic tape unit in May 1959, and delivered it to the Japanese Electronic Industry Development Association (JEIDA) together with the first production unit of the NEAC-2203. This magnetic tape unit was used for the NEAC-2203 and the NEAC-1103, which was an improved version of the NEAC-1102 (SENAC-1).
The tape shock absorber mechanism for this equipment was the tension arm type.
|Magnetic tape||Width (mm)||12.7|
|Number of tracks||8|
|Tape running speed (m/s)||2|
|Tape rewind speed (m/s)||4|
|Start/stop time (msec)||5|
|Information recording density(bit/mm)||4|
|Information transfer speed (char (BCD)/s)||8,000|