TM 5-6675-316-14
The input/monitor unit is made up of an 83-element keyboard and 12.00 in. (30.48 cm)
CRT monitor. This unit is mounted on a small extension table off the main equip-
ment, connection being made via a multiway cable.
(1) The keyboard is an MOS encoding keyboard with 83 encoded keys. Each key
station uses a Hall effect solid-state switch. Upon depression of a key the key-
board generates the appropriate 8-bit code and a keyboard strobe pulse which appears
on the output lines of the keyboard. The 8-bit code is then stored in a buffer
memory that is part of a 1K display memory located on the character generator board.
The output code generated by the keyboard remains on the output lines of the key-
board until another key is depressed.
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