37 MAINTENANCE AND INSTALLATION OF COMPUTERS, COMPUTER-RELATED EQUIPMENT, SOFTWARE, COMMUNICATIONS EQUIPMENT, AND COMMUNICATIONS-RELATED EQUIPMENT
41 EDUCATIONAL SERVICES, NAMELY CONDUCTING TRAINING CLASSES IN THE FIELDS OF COMPUTERS, SOFTWARE, COMPUTER-RELATED EQUIPMENT, COMMUNICATIONS EQUIPMENT, AND COMMUNICATIONS-RELATED EQUIPMENT
42 RETAIL AND WHOLESALE SERVICES IN THE FIELDS OF COMPUTER EQUIPMENT, COMPUTER-RELATED EQUIPMENT, COMPUTER PROGRAMMING SERVICES, SOFTWARE, COMMUNICATIONS EQUIPMENT AND COMMUNICATIONS-RELATED EQUIPMENT