42 LEASING OF COMPUTERS AND COMPUTER TIME-SHARING SERVICES; COMPUTER HARDWARE ENGINEERING FOR OTHERS; COMPUTER SOFTWARE DESIGN, WRITING, DEVELOPMENT, CUSTOMIZATION AND INTEGRATION, ALL DONE FOR OTHERS; INTEGRATION OF COMPUTER SYSTEMS AND NETWORKS; CONSULTANCY SERVICES FOR OTHERS IN THE FIELDS OF COMPUTERS, COMPUTER SYSTEMS, COMPUTER PROGRAMMING AND NETWORKING, TELECOMMUNICATIONS, THE INTERNET AND ELECTRONIC COMMERCE