SYS5-1F     - &F000-&FFFF: DOS plus 80x25 text kernel
SYS5-1F/zip - source for SYS5-1F
80x25font   - 80x25 character ROM
ECO240      - &E000-&EFFF: Econet 2.40, ALDC at &1900, keyboard at &B000
MOSA00      - &F000-&F7FF: IO at &A04, &E0x, &E1x, &F00
SHUDOS      - &F000-&F7FF: Shugart same as SYS5-1F
TANDOS      - &F000-&F7FF: Tandon same as SYS5-1F
TANDOS80    - bitrotted    Tandon 
TOSDOS40    - &F000-&FFFF: Toshiba DOS and 40-col VDU
TOSDOS80    - &F000-&F7FF: Toshiba same as SYS5-1F
SMON        - &D000
JOSDOS      - same as SYS5-1F