Chuck(G)
25k Member
Not meaning to go too far astray, but the 720K 3.5" drive was a standard option in 1986 for IBM. See the applicable O&A description.
For unknown reasons was sold in Japan as Version 2.11 (only MSDOS.SYS mentioned 2.25)
I wonder if there was some legal reason. I've got a copy of DOS 2.11 (label says 2.1) for the Toshiba T1100Plus on a 720K floppy. If I look around inside some of the the files with a text editor, I see that many of them say "TOSHIBA Vers 2.20" even though ver reports it's running 2.11.
Thanks!I sent you a PM. I don't think this disk will have the double byte stuff, since the floppy label is "US"
Granted, they were 720K, but there you have it. Note also, that said drives are half-height, not the later one-third (of a FH 5.25" slot) height drives. I wouldn't be at all surprised if the drives were also the 26-pin variety.
Command v. 2.25 (C)Copyright Microsoft Corp 1981, 1985
In what way exactly?Wow! This is even better than Multitasking MS-DOS 4
The DOS system files are not present on this disk.The Micro Palm PC/4000 & PC/5000 apparently ran MS-DOS v2.25.
The COMMAND.COM file, dated 30-Oct-1985, has:
Code:Command v. 2.25 (C)Copyright Microsoft Corp 1981, 1985
I have imaged the disk on my Github here if you are interested.
Brett.
I wonder if they are embedded on the ROM? When the PC/4000 boots it complains that COMMAND is missing, so something that we need to transfer across.The DOS system files are not present on this disk.
The DOS kernel can be extracted from the ROM and put into MSDOS.SYS, and it works nicely with PC-DOS 2.x's BIOS.
View attachment 1271624
Sincerely,
Pig