42 consulting services on the installation and de-installation of computer haradware and peripherals, computer networks and computer software; providing technical support and consultation, diagnostic service and performace monitoring services to users of computer hardware including all components thereof and peripherals, computer networks and computer software; consulting services on the selection, acquisition, upgrade and reconfiguration of computer hardware and peripherals, computer networks, and computer software; consulting services on computerized inventory tracking services, and on data restoration and computer disaster recovery