The Free On-line Dictionary of Computing (30 December 2018):

BASIC V

   The version of the Basic programming language which comes on
   ROM in Acorn's RISC computers: the Archimedes range
   and the RiscPC.  It features REPEAT and WHILE loops,
   multi-line IF statements, procedures and functions, local
   variables, error handling, system calls and a built-in
   assembler.

   (1995-01-05)