Spectrum Computer Systems: Spectrum Computer Services Plc is a provider of products and services such as database and operating software development services,computer consultancy activities,other information technology and computer service activities,computer and information technology services,other computer and information technology services,computer-related professional services,technical computer support services,computer support services,computer and related services,computer services,computer consultants,computer related services (unclassified),computer, related service,computer related services, nec.,computer system, selling services,computer and computer software, stores,computers, stores,computer software, stores,computer-related services.