M-1116 Oct61

This permanent memorandum, M-1116, from Digital Equipment Corporation (DEC) is dated October 3, 1961, and was issued by Ed Harwood to the PDP Distribution List.

Subject: Module Requirements for the PDP-1 computer and its various options.

Abstract: The document details the quantities of specific System Modules required for key PDP-1 components and peripherals, including:

• The Central Processor
• A 4096 Word Memory Module
• Input/Output devices like Readers, Punches, and Typewriters
• Specialized functions such as Multiply & Divide Type 10, Sequence Break System Type 20, Jump Field Type 14, and High Speed Channel Control
• Various Tape Control types (50, 51, 52)
• A 32-Channel Sequence Break System.

The memorandum is approved by Harlan S. Anderson. Pages 2-5 of the original document are noted as missing.