The Highway Code Great Britain version, available in English and Welsh, applies to England, Scotland and Wales, but regional specific signs such as driver location signs in England or bilingual signs in Scotland and Wales are not covered. The Northern Ireland version, available in English and Irish, applies to Northern Ireland. Costing one penny, the first edition of the Highway Code was published on 14 April 1931. It contained just 18 pages of advice, including the arm signals to be given by drivers and police officers controlling traffic. The second edition, considerably expanded, appeared in 1934, and now illustrated road signs for the
Source code distributed source code with its software product licenses, after 1999. Most early computer magazines published source code as type-in programs. Occasionally the entire source code to a large program is published as a hardback book, such as "Computers and Typesetting", vol. B: "TeX, The Program" by Donald Knuth, "PGP Source Code and Internals" by Philip Zimmermann, "PC SpeedScript" by Randy Thompson, and "µC/OS, The Real-Time Kernel" by Jean Labrosse. The source code which constitutes a program is usually held in one or more text files stored on a computer's hard disk; usually these files are carefully arranged into a directory