![]() Procedures are the policies that govern the operation of a computer system procedures are to people what software is to hardware is a common analogy that is used to illustrate the role of procedures in a computer based information system.Įvery computer based information system needs people if it is to be useful. Like programs, data are generally stored in machine readable form on disk or tape until the computer needs them. Programs are generally stored on some input output medium often a disk or tape for use by the computer.ĭata are facts that used by programs to produce useful information. computer programs are machine readable instructions that direct the circuitry within the hardware parts of the computer based information system to function in way that produce useful information from data. The term software refers to computer programs and the manuals (if any) that supports them. Among these supporting equipments are input and output devices, storage device, and communication devices. The term hardware refers to machinery, this category includes computers itself, which is often refer to as the central processing unit (CPU), and all of its support equipments. Such a system consists of the following elements (Mahar, 2002): Following are the some basic components of computer based information system (Mahar, 2003).Ĭomponents of computer based information systemsĪ computer based information system is an information system in which a computer plays an important role. In fact, without computers, it is unlikely that information system would even be considered a serious field of study. PDF Abstract XML References Citation How to cite this articleĬomputers are an essential part of modern information systems, and it is virtually impossible to study information system today without knowing some thing about them and how they operate. This paper will cover some general properties of transaction processing systems, special transaction processing subsystem-pay roll, order entry, inventory, accounts receivable, accounts payable and others. To most businesses, manual systems present numerous problems that are solved by computer and communication technologies. Many small businesses still operate with manual transaction processing systems however, inexpensive and easy to use computer technology is finding its way into more small businesses. ![]() These records would be set up to trigger statements to customers or checks of suppliers. ![]() These transactions would latter be transferred, manually, to a central system of hand written records or file folders representing individual customers or suppliers. Clerks would record transactions in a journal or on numbered multi part forms. The earlier transaction processing systems were manual systems.
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