• 1972

Hardware Description

The 9865A was a modular, cassette tape storgae peripheral for the 9800 Series of computer/calculators. The 300 foot cassettes (P/N 9162-0050) had a storage capacity of 48,000 program key strokes. Tape search speed was 130 feet per minute. The 9830A will interface directly to the 9865A using the 9865A interface cable. The 9810A and 9820A require additional ROMs to interface to the 9865A.