INTRODUCTION Elements of computer and Communication System A system is a group of related components and operations that interact to perform a task.The elements of a computer and communication system are People,the proessionals and End Users and the other element Procedure, Descriptions of how things are done, steps for accomplishing a result and the other element Data/Inormation, Data consists of the raw facts and figures that are processed into information.Information summarized data or otherwise manipulated data and the other element is Hardware, consists of all the machinery and equipment in a computer system. The Basic Operations of Computing a. Input operation b. Processing operation c. Output operation d. Secondary Storage operation Hardware devices are categorized according to which of the four computer operations it performs. Processing and Memory Hardware, CPU (the processor), Output Hardware, Secondary Storage Hardware .Four types of Computer Hardware the Input Hardware ,Output Hardware . Software Software or programs – consist of the step by step instructions that tell the computer how to perform a task. Two Major Types Application Software – defined as software that can perform useful work on general purpose task. System Software - have direct control and access to your computer hardware , and memory locations . They perform I/O operations on various memory locations , and control the hardware , to make the application software do a task. Communication defined as the electronic transfer of data from one place to another. 1 )sender2) receiver 3) computer 4) transmission medium 5) signal converter – modem..
Posted on: Thu, 11 Jul 2013 12:57:28 +0000
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