The VIC 20 PROGRAMMER’S AID CARTRIDGE [VIC 1212] has been designed to help both new and experienced BASIC programmers to write, edit and debug programs quickly and easily. This is achieved by the AID commands which are automatically incorporated into the VIC operating system when the cartridge is inserted. The cartridge also assigns some of the AID commands and some BASIC keywords to the function keys thus giving the programmer his own shorthand notation during program writing. This, together with the facility for the programmer to assign his own functions to these keys, make PROGRAMMER’S AID an invaluable programming accessory.