PTDOS

PTDOS or Processor Technology Disk Operating System is an operating system created in the late 1970s for computers using the Intel 8080 microprocessor and the Processor Technology Helios II Disk Memory System.

Commands
The following list of commands is supported by PTDOS 1.4.


 * EDIT
 * EDT3
 * ASSM
 * DEBUG
 * DO
 * DISKCOPY
 * RECOVER
 * FILES
 * FREE?
 * SYST
 * OPEN?
 * COPY
 * IMAGE
 * BLDUTIL
 * EXTRACT
 * KILL
 * RENAME
 * RETYPE
 * REATR
 * XREF
 * DUMP
 * PRINT
 * RNUM
 * SAVE
 * GET
 * CREATE
 * OPEN
 * READ
 * WRITE
 * CLOSE
 * SPACE
 * RANDOM
 * SEEK
 * ENDF
 * SETIN
 * SETOUT
 * SET
 * EXEC
 * ZIP
 * CONFIGR
 * OUT
 * BASC5
 * FOCAL
 * TREK80