pagetable @pagetable@mastodon.social

Commodore “Magic Voice” Cartridge for C64
https://www.pagetable.com/?p=1348
“Magic Voice” is an expansion cartridge for the Commodore 64 that can speak 235 predefined words. Here are some pictures.
#commodore #c64 #retrocomputing

Falk Rehwagen, TopDesk and GEOS
https://www.pagetable.com/?p=1344
Here are some of Falk Rehwagen’s thoughts on his involvement with GEOS and TopDesk.
#commodore #c64 #geos #retrocomputing

TopDesk 1.3 GEOS64/128 Original Source
https://www.pagetable.com/?p=1341
Thanks to Falk Rehwagen and Jürgen Heinisch, the original source of the TopDesk file manager for the GEOS operating system of C64/C128 is available.
#commodore #c64 #c128 #geos #retrocomputing

Tynemouth Minstrel ZX80 Clone Kit
https://www.pagetable.com/?p=1337
I have previously shown an unassembled Sinclair ZX81 Kit that could be bought in the early 80s. Today, it is possible to buy a clone of the ZX80 from Tynemouth Software. Here are some pictures.
#sinclair #zx80 #zx81

Converting a Commodore 1541 or 1570 Drive into a 1551
https://www.pagetable.com/?p=1331
The 1551 is the weird outlier of Commodore drives: It is the only drive using the “TCBM” bus. And what’s even weirder? 1541 and 1570 drives converted into 1551s!
#commodore #c64 #plus4 #retrocomputing

More Original Commodore Source Code
https://www.pagetable.com/?p=1333
There have been a few new interesting additions to the Commodore Source Code repository, including: RAMDOS, 1570, 1571CR, 1551 and 1541
#commodore #c64 #c128 #plus4 #retrocomputing

Commodore Peripheral Bus: Part 5: TCBM
https://www.pagetable.com/?p=1324
The C16/C116/Plus4/1551 "TCBM" bus was supposed to be faster but as cheap as the C64 Serial Bus. It wasn't much faster, probably not cheaper, and had lots of design issues.
#commodore #plus4 #retrocomputing

Run CP/M on your C64 – using Emulation!
https://www.pagetable.com/?p=1315
#commodore #c64 #cpm #retrocomputing
The Roßmöller CP/M Emulator for C64 "borrowed" an 8080 emulator for 6502, and the CP/M OS.

C64 CP/M Cartridge
https://www.pagetable.com/?p=1312
The cartridge that makes a C64 a “dual processor” computer: Commodore’s CP/M cartridge for C64 contains a Z80 CPU and comes with version 2.2 of the CP/M operating system. Here are some pictures.
#commodore #c64 #cpm

Commodore Bildschirmtext II Decoder Cartridge
https://www.pagetable.com/?p=1310
#commodore #c64 #bildschirmtext
Here are some pictures of the outside and the inside of a Commodore Bildschirmtext II Decoder Cartridge for the C64 – a 6800-based computer connected to the expansion port!

Sinclair ZX81 Kit
https://www.pagetable.com/?p=1308
#sinclair #zx81
Here are hi-res photos of an unassembled Sinclair ZX81 kit, with German assembly instructions.

Recovering Files from Broken Amiga OFS Disks
https://www.pagetable.com/?p=1300
#commodore #amiga #datarecovery

The Commodore IEEE-488 Cartridge for C64
https://www.pagetable.com/?p=1303
#commodore #c64 #ieee488
C64 disk drives were usually connected through the slow serial bus. This article shows photos of the Commodore “IEEE-488 cartridge”, which made the faster PET drives available for the C64.

Final Cartridge III with GEOS
https://www.pagetable.com/?p=1180
#commodore #c64 #geos
The Final Cartridge III is great: It comes with lots of features, and an impressive, but ultimately useless GUI, because there are practically no applications for it. Let’s replace the FC3 GUI with GEOS!

Boxed MOS 6502 CPU
https://www.pagetable.com/?p=1295
#mos6502
Back in 1975, you could order a boxed 6502 CPU directly from MOS in Norristown, PA. Here are some high-res photos of such a box and its contents.

Commodore MAX Machine
https://www.pagetable.com/?p=1158
#commodore #c64

Bildschirmtext-Demovideos von 1994
https://www.pagetable.com/?p=1163
#bildschirmtext #btx

Illegal Opcode Support for the Final Cartridge III Monitor
https://www.pagetable.com/?p=1178
#commodore #c64

Commodore Peripheral Bus: Part 4: Standard Serial
https://www.pagetable.com/?p=1135
#commodore #c64