mainframe computer
type: Concept
preferred label: بزرگ‌رایانه @fa
related: Unisys computer

microcomputer
type: Concept
preferred label: ریزرایانه @fa
related: Unisys computer

minicomputer
type: Concept
preferred label: خردرایانه @fa
related: Unisys computer

Unisys computer
type: Concept
alternative label: Sperry computer
broader: digital computer
preferred label: رایانه یونیسیس @fa
related: minicomputer
related: microcomputer
related: mainframe computer

digital computer
type: Concept
narrower: Unisys computer
preferred label: رایانه رقمی @fa