STB Systems - Graphix Plus II Users Manual - Preliminary Revision 0.3
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The Graphix Plus II expansion board by STB Systems is an 8-bit ISA card designed for the IBM PC. It can control a monochrome and a colour monitor, automatically switching the active output between monitors based on the last I/O port accessed. It also has provisions for an optional SCSI/SASI internal connector and a battery-backed real-time clock chip.
This preliminary revision of the user's manual covers installation and usage of the card, as well as the I/O registers and configuration switches. It does not cover the SCSI/SASI or RTC options.
This exhibit has a reference ID of CH40873. Please quote this reference ID in any communication with the Centre for Computing History.