PCjs Machines
Home of the original IBM PC emulator for browsers.
DoubleDOS 2.1F
This version of DoubleDOS comes from the PCjs Software Archive and likely patched as well (e.g.,
to disable copy protection), since the date for DOUBLEDO.EXE is almost a year newer than the rest of the files.
It also seems to be very DOS version-sensitive. It crashes on PC DOS 2.00 but appears to work OK on PC DOS 2.10, so that’s what we boot with here. A directory listing of the 160Kb diskette is provided below.
[PCjs Machine "ibm5160-doubledos"]
Waiting for machine "ibm5160-doubledos" to load....
Directory of DoubleDOS 2.1F
Volume in drive A has no label
Directory of A:\
IBMBIO COM* 1920
IBMDOS COM* 6400
COMMAND COM 17792 10-20-83 12:00p
READ_ME 1ST 4992 4-16-84 3:14p
DOUBLEDO EXE 38912 2-28-85 9:13p
DOUBLED2 PGM 23552 4-16-84 3:36p
SWITCH EXE 1408 4-16-84 3:22p
SWITCH ASM 1534 4-16-84 3:40p
123DRIVE BAT 675 4-16-84 2:43p
DBLDMONO DRV 798 4-05-84 2:58p
DBLDCOLO DRV 5363 4-05-84 2:58p
DBLDHERC DRV 5330 3-31-84 2:20p
DBLDB&W DRV 5363 3-31-84 2:56p
DBLDCPQ DRV 798 3-31-84 4:47p
DBLDANSI SYS 1698 4-05-84 2:59p
PRNAME8 VER 36 4-16-84 3:37p
DOUBLED1 EXE 11264 1-01-80 12:14a
17 file(s) 127835 bytes
25088 bytes free