16 kb RAM for the HP-85A

EBTKS can be configured in the CONFIG.TXT file to provide 16 kb of RAM in the upper part of a HP85A computer (and probably also HP83).

The manufacturing test program EBTKS-TEST that is run on every EBTKS prior to shipment requires over 16 kb memory that is built-in on HP85A and HP83. Thus, this 16 kb that can be provided by EBTKS is always enabled for HP85A and HP83. On these computers, if you have a 16 kb card (82903A), it should be unplugged prior to installing EBTKS.

This capability should not be enabled in HP85B, or HP86/87 as they already implement this memory area.