S/390

Custom installation, repair and maintenance of computer hardware; technical support services, namely, troubleshooting of computers in the nature of repair of computer hardware

Computer consultation services; computer technical support services, namely, troubleshooting of computers, servers and computer software problems in the nature of diagnosing computer hardware, software, and server problems; computer systems analysis; computer services, namely, testing computer software, computers and servers for others; installation, updating and maintenance of computer software; computer programming for others