Computer programs, recorded; Programs (Computer operating -) recorded; Computer peripheral devices; Computer peripheral devices; Computer software recorded; Computer software recorded; Processors central processing units; Electronic notice boards; Electronic notice boards; Video telephones; Receivers (Audio-- and video--); Games (Apparatus for -) adapted for use with television receivers only; Amusement apparatus adapted for use with television receivers only; Audiovisual teaching apparatus; Video recorders; Camcorders; Printed circuits; Chips integrated circuits;