Microsoft SoftCard II
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Microsoft SoftCard II was a hardware and software system to enhance the capabilities of Apple II or Apple IIe. The Zilog Z-80 SoftCard is a plug-in co processor and 64K bytes memory expansion card to turn the Apple II into a CP/M system based upon the Zilog Z80. It was the idea of Paul Allen to simplify porting Microsoft's programming language products to the Apple II and was developed by Tim Paterson of Seattle Computer Products (SCP), redesigned by Don Burtis of Burtronix and manufactured by California Computer Systems.
CP/M was an early cross-platform operating systems, which ran on Intel 8080 compatible CPUs like the Z80, which was easily adaptable to a wide range of auxiliary chips and peripheral hardware, unlike the Apple's MOS Technology CPU.
It became the most popular CP/M platform and Microsoft's top revenue source for 1980, it was succeeded by Microsoft's Premium Softcard IIe for the Apple IIe.
Microsoft SoftCard II system comprises: SoftCard II printed circuit board; SoftCard II Master floppy disk including CP/M operating system
Platform: Apple II, II+ and 80 Column Video Display Board or Apple IIe 64Kb RAM 2xDisk 5.25
OS: DOS 3.3 and DR: CP/M 80
System Software (SS:) Programming Language (PL:) BASIC
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This exhibit has a reference ID of CH46384. Please quote this reference ID in any communication with the Centre for Computing History.
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