Reference Section

Character code tables Table of ASCII codes. Table of ASCII control codes. Table of EBCDIC control codes. Table of Baudot codes.	Numeric base conversions Quick reference showing hexadecimal to decimal conversions. Quick reference showing hexadecimal to octal conversions.
Networking Details of UTP Patch Lead wiring. IP addresses used for private networks (intranets).	Leap Year Calculator Information on what constitutes a leap year. Also, a JavaScript calculator showing if a given year is a Leap Year.
ISO/ANSI Magnetic Card Encoding Track 1: 6 bit Alphanumeric Codes Track 2: 4 bit BCD Codes	Modems AT Command Set Command Syntax Command Listing Command Listing for GSM Result Codes S Registers
Connector Pin Outs 9 pin D RS232. 9 pin D Psion TTL serial port (Workabout). 15 pin D SVGA. Comtec Cameo2 printer.	Language Definition Backus Naur Form (BNF). Augmented Backus Naur Form (ABNF). Extended Backus Naur Form (EBNF).
Other To assist with unambiguously spelling email and web addresses, the phonetic alphabet as internationaly recognised.

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