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CP/M and MP/M
Discuss these venerable old operating systems and the machines that run them
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Sticky
CP/M System Disks - Please Read
CP/M User
Aug 2, 2006
2
Replies
26
Views
74K
Apr 19, 2017
Buggoo
B
K
Osborne 1 New mechanical keyboard
kc4bqk
Feb 11, 2023
Replies
7
Views
419
Today at 2:34 AM
shirsch
S
D
Osborne 1 -- internal CRT does not work/power, but external does
Dokken
Sunday at 8:33 PM
Replies
9
Views
89
Yesterday at 10:50 AM
cj7hawk
C
[KAYPRO 10] Boot Problems! Help?
Patrick.B (TTR)
Thursday at 2:55 PM
2
Replies
27
Views
246
Sunday at 2:05 AM
durgadas311
P
Adding Text display and keyboard for a homebrew Z80 CPM computer
Plasmo
Sep 15, 2020
2
3
Replies
41
Views
3K
Saturday at 7:11 PM
Laci53
L
C
I had three Osborne 1's... Now I only have 2... Ebay cancelled mid-shipping and then upped the shipping price. Where else can I buy old CPM computers?
cj7hawk
Mar 15, 2023
3
4
5
Replies
86
Views
2K
Saturday at 2:57 PM
cj7hawk
C
Osborne 1 resets itself continuously, but only when the keyboard is plugged in!
wowbobwow
Friday at 6:53 AM
Replies
13
Views
127
Saturday at 6:37 AM
cj7hawk
C
C
Keyboard Concepts - how to encode the keys outside of the ASCII sequence. What are the best ideas for CP/M?
cj7hawk
Thursday at 10:53 AM
Replies
6
Views
120
Friday at 11:25 AM
cj7hawk
C
B
NABUduino: a PCB for SD cards, PS/2 mice, and tinkering.
bdurbrow
Dec 16, 2022
2
Replies
20
Views
1K
Friday at 2:58 AM
bdurbrow
B
K
picking an Osborne 1
KennyPowers
May 25, 2023
Replies
13
Views
236
Wednesday at 10:32 PM
KennyPowers
K
C
What CP/M programs use the ADM-3A vector graphics extensions?
cj7hawk
May 30, 2023
Replies
5
Views
142
Wednesday at 3:37 AM
Eudimorphodon
The Official Nabu PC Floppy Disk Controller thread
snuci
Nov 28, 2022
8
9
10
Replies
194
Views
9K
May 30, 2023
snuci
Problem 8" disk with complementary format
fritzeflink
Apr 15, 2023
2
Replies
29
Views
527
May 30, 2023
fritzeflink
C
CP/M Boot Sequence. Warm Boot issues.
cj7hawk
May 30, 2023
Replies
11
Views
154
May 30, 2023
cj7hawk
C
B
Making SSSD disks for the Osborne 1 using MAME
BlaBla1985
Mar 12, 2023
Replies
10
Views
260
May 29, 2023
stefano
S
C
Osborne 1 Video Adapter.
cj7hawk
May 28, 2023
Replies
4
Views
91
May 28, 2023
jxm
J
Olivetti ETV 300 : Can I use the typewriter part as a serial terminal to mimic a teletype?
AltairNic
Apr 28, 2023
2
Replies
30
Views
559
May 25, 2023
AltairNic
The Dead Kaypros Society
durgadas311
May 25, 2023
Replies
2
Views
137
May 25, 2023
tradde
Osborne 1 Screenpac
Gary C
Mar 9, 2023
2
Replies
25
Views
462
May 25, 2023
cj7hawk
C
C
Bit7 in CP/M characters.
cj7hawk
May 16, 2023
Replies
7
Views
224
May 24, 2023
Svenska
S
C
DRI BDOS setting S2 on Create File?
cj7hawk
May 24, 2023
Replies
1
Views
79
May 24, 2023
durgadas311
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