37 INSTALLATION, MAINTENANCE AND REPAIR SERVICES FOR INFORMATION HANDLING SYSTEMS PRODUCTS, NAMELY, PERSONAL COMPUTERS, MIDRANGE AND MAIN FRAME COMPUTERS, DATA PROCESSING MACHINES, COMPUTER MEMORIES, COMPUTER MEMORY DEVICES, RANDOM ACCESS MEMORY CIRCUITS, SEMICONDUCTOR DEVICES, INTEGRATED CIRCUITS, ELECTRONIC CIRCUIT BOARDS, ELECTRONIC CIRCUITS, TERMINALS, CONTROLLERS, INPUT AND OUTPUT DEVICES AND COMBINATIONS OF THESE DEVICES, NAMELY MONITORS, KEYBOARDS, PRINTERS AND FACSIMILE MACHINES, MAGNETIC TAPE, MAGNETIC DISKS, DISKETTES, DATA MODULES, BATTERIES, AND TELECOMMUNICATION EQUIPMENT, NAMELY, MULTIPLEXORS, MODEMS AND DATA COMMUNICATING TERMINALS AND LINE ADAPTORS