A1

In computing, A1 means Address 1 code.

An a1 code interpreter[?], by Matthew Newhook[?] <matthew@engr.mun.ca> was used to test compiler output. It requires gcc 2.4.2 or higher and is portable to computers with memory segment protection[?].

ftp://ftp.cs.mun.ca/pub/a1 (ftp://ftp.cs.mun.ca/pub/a1)

See also:

• Programming language

This article (or an earlier version of it) contains material from FOLDOC, used with permission.

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The A1 is also a main trunk road in Britain, which runs from London to Edinburgh, along the course of a Roman road.

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A1 is also the name of the longest motorway in Italy, running through most of Italy from Milan to Naples.