PDP-8/I Options

This document is Volume II of the Training Drawings for the PDP-8/I computer, focusing on hardware options. It includes logic schematics and timing diagrams for several components, including:

• Extended Arithmetic Element (EAE): Flow diagrams, control logic, and multiplier quotient registers.
• Real-Time Clock (KW8I): Clock control and counter modules.
• Memory Extensions: Control logic, axis selection, inhibit drivers, and memory parity options.
• High-Speed I/O: High-speed punch and reader interface logic.
• Display/Plotter Control: Display control and plotter control schematics.
• Disk Systems: Detailed logic and timing diagrams for DF32 disk systems, including disk control, timing, and I/O connections.