Skip to content
Skip to main navigation
Skip to first column
Skip to second column
JAQ's Blog - Electronics, Microcontrollers, DEC Minicomputers, Raspberry Pi, Airplanes and other stuff....
Total: 10 results found.
Kaypro 4/83 Floppy Disk Woes.....
... KayPlus ROM worked but there were a few odd behaviours running some
applications that needed further investigation. In May 2014 a Kaypro II was purchased from eBay by phorgen on the Vintage Computer ...
Computer Specialists Ltd - CS-16/64 Single Board Computer
... and sold as a "controller". Apparantly it was also sold as a basis for a complete Z80 machine with a disk controller and could run
. I don't know the history of this particular board. There ...
Kaypro / FreHD Adaptor - Part 3
... case would still close! Kaypro FreHD SHIM installed in a Kaypro II (81-110n) SHIM with FreHD attached
running from the FreHD I discovered two ...
Kaypro / FreHD Adaptor
... a WD1010 Hard Disk controller + Hard Disk combination. Western Digital Hard Disk controllers were fairly common in the early 80's with many available as after market additions for the Z80 +
TRS80 Model 4 128K Upgrade
recognized the extra memory promptly created a 64K ram disk as drive M:. PIP had no difficulties copying files to and from M: What a great way to spend 30 minutes. Not wanting ...
Supporting Generic Kermit 4.11 in your CPM/80 BIOS
I have written about my home built Z80
computer in earlier posts. Based on a design by Grant Searle (http://searle.hostei.com/grant/cpm/index.html) this fabulous litle machine is easily built ...
Home Built Z80 CP/M Computer - Part 3
... but USB but something I hadn't even considered when I started down the USB track. The next step (after replacing the serial boards and adding the extra LED's) is to install an updated CBIOS for
Home Built Z80 CP/M Computer - Part 2
2.2 off the compact flash card.... 8 x 8mb drives (luxury in 1980). Rather than wire directly to the Compact Flash connector like Grant did on this prototype, I ordered a low cost ...
Home Built Z80 CP/M Computer
Replaced a 7417 open collector driver on the KY11-LB controller board hoping this would solve the display problem but not so.... time to work further back through the board. I think it is ...
Building simh for OpenWRT
... I haven't tried
yet and need to free up some space or add some additional flash memory. In the mean time... on to the blinking lights. The DSL-502T does not have enough free GPIO ...
PDP8 SBC6120 FP6120
My Other Sites
Contact Andrew Quinn