The Appendix

This document, titled "The Appendix," serves as a compilation of technical appendices. The provided content specifically details "Appendix A: Character Codes," which includes various tables and notes related to character encoding.

Within Appendix A, the document presents:

• A comprehensive ASCII character set table, detailing each character's even parity bit, 7-bit octal code, character representation, and descriptive remarks (especially for control characters).
• Notes providing additional context, such as information on Teleprinter codes (ALT and ESC), the structure of ASCII as a 7-bit code with optional parity, and its relationship to international standards like ISO Recommendation R646 and CCITT Recommendation V.3.
• ASCII card code tables (Tables A-1, A-2, A-3) that map ASCII characters to their corresponding punch card representations for different systems, including general ASCII, DEC-029, and DEC-026 card codes.
• A Radix-50 character set table (Table A-4) illustrating the conversion of ASCII characters to their Radix-50 equivalents, along with an example calculation and a note on the maximum Radix-50 value.

While the document's table of contents lists additional appendices (B through K) covering topics like conversion tables, physical device names, FORTRAN logical device assignments, filename extensions, system macro file listings, bootstrap procedures, peripheral devices, a glossary, switch summaries, and error messages, these sections are not included in the provided pages.