Tag: cp m

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
Find usedChecked Jul 27, 2026Applied Engineering Z-RAMby Applied Engineering
apple iicmemory expansionz80cp mram diskperiod upgrade

Period internal Apple IIc card combining 256K or 512K of memory with a Z80 processor for CP/M.

This is a period internal card obtained used. The original package included RAM-disk software, a Z80 operating system, and CP/M documentation; verify that software and installation material are present. Opening the IIc and installing the board is required.

Sources
  • Apple IIc Exact model
Z-RAM brochureSearch eBay
AvailableChecked Jul 24, 2026SoftCard III Reproductionby Joe's Computer Museum
z80cp mreproductionkitbare pcb

Adds a Z80 processor and Microsoft SoftCard III compatibility for running CP/M on the Apple III family.

The current page offered assembled, kit, and PCB-only choices through its product selector on 2026-07-24. The PCB-only option does not include the ROM adapter or programmed ROM, and no option includes a rear-panel bracket. JCM tested assembled units booting Apple III CP/M from both wDrive and an original floppy.

Sources
  • Apple III Exact model
  • Apple III Plus Exact model
SoftCard III Reproduction product page