(19)

(11)

EP 0 082 198 A1

(12)

(43) Date of publication: 29.06.1983 Bulletin 1983/26 (21) Application number: 82902335.0 (22) Date of filing: 23.06.1982

(51) International Patent Classification (IPC):  G06F 11/ 10( . ) (86) International application number: PCT/US1982/000853 (87) International publication number: WO 1983/000242 (20.01.1983 Gazette 1983/02)

(84) Designated Contracting States: DE FR GB (30) Priority: 26.06.1981 US 19810277766 (71) Applicant: NCR CORPORATION Dayton, Ohio 45479 (US)	(72) Inventor: ANDERSON, Douglas Blair Escondido, CA 92026 (US) (74) Representative: Robinson, Robert George  International Patent Department NCR Limited 206 Marylebone Road London NW1 6LY London NW1 6LY (GB)