File talk:Michael Holley Computer 1978 NWCN.jpg
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Text on the screen
[edit]The text on the screen very roughly reads like this:
The following program will allow the use of an IBM Selectric terminal .... |||| with a NNNN based computer. the Selectric terminal-compatible-computer print bit/but this(?) does not look like computer print ...(?). The only problem with the 2741 terminals is that they use a different protocol and code than ASCII terminals. xxxxx xxx a xxxx xxxxx, the interface is the same RS-232 serial XXX XXXX terminal ["]if/for a printer is simpler than using it xxxxxxx xxxxx input/output xxxx/ in(?) the send-receive-contol protocol. This program is for output only. I have written full | sub(?)bidi(?) routines but they require modifications of the calling program (XXX XXXX xxx) to handle the half duplex protocol. This program was tested on a TRD(?)DATA XXXX? terminal with a Southwest Technical Products XXXX 6801 (?) computer but should work with any 2741 type terminal. SYSTEM REQUIREMENTS last | The program is assembled to reside in ROM or RAM at [0100] to XXXX hex with 7 (?) bytes of RAM at ASCII hex. The program may be reassembled anywhere but the lookup table must start at a page boundary (XXXX hex). Only 2 bytes of pemanent RAM are needed the other X may be scratch pad.