软件SoftwareSet ofInstructions that control and operation of computer system.系统软件（SystemSoftware)：Programs that manage and support the resources and operationsofacomputersystem.应用软件（ApplicationSoftware)Programs that direct the performance of a particular use orapplication of computers to meet the information processing needsofenduser.软件 Software Set of Instructions that control and operation of computer system. 系统软件 (System Software): Programs that manage and support the resources and operations of a computer system. 应用软件(Application Software) Programs that direct the performance of a particular use or application of computers to meet the information processing needs of end user