NEC ACOS-4/AVP

NEC announced ACOS-4/AVP (Advanced Virtual Processor) in February 1984, and started shipping it in September 1984. Formerly computers had been used only by certain professionals, but it became the time in which non-professional people used computers for their business. ACOS-4/AVP was developed with the aim of providing greater ease of use for end users, together with more efficient system operation in all fields. ACOS-4/AVP was installed in ACOS System 430, which was hardware designed for downsizing and energy saving in small to medium systems.