Overview of Computer system A Computer Systems 1

Overview of Computer system

A. Computer Systems 1. Computer Hardware 2. Computer Software

Computer Hardware 1. 2. 3. 4. 5. Input Devices –data can be entered to the computer Central Processing Unit – processes the organization and movement of data in the system Primary Storage – main memory; where programs and data are stored temporarily while processing Output Devices Auxiliary Storage Devices – secondary storage; where data is stored

Software Applicatio n Software System Software Operatin g System Support Syste m Developmen t General Purpos e Application Specifi c

System Software �Manage the hardware resources of a computer and perform required information processing tasks.

System Software Operating system – provides services that allow users access to the system. (such as user interface, file and database access, communication systems. 2. System Support – provides performance statistics for the operational staff and security monitors to protect the system and data. (disk format, disk clean up) 3. System Development – language translators that convert programs into machine language for execution, debugging tools and computer-assisted software 1.

Application Software's General-purpose software – purchased from a software developer and can be used for more than one application. 2. Application-specific software – with an intended purpose. 1.

A. Computer Systems User Application Software System HARDWARE Software