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I will explain what the specifications are for an input and output device. I will explain what input devices need to be, to be transferred to the relevant output device.

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Introduction

Basic Specifications I will explain what the specifications are for an input and output device. I will explain what input devices need to be, to be transferred to the relevant output device. Here are the various items I will be looking at: * Central processing unit * Operating system * Applications software * Configuration. Control Processing Unit (CPU): In PC's and laptops there is a main processing chip called the processor or either wise known as the central processing unit (CPU). This unit handles the instructions from the computer program and processes the data. Here are three items which would be found in the CPU: * Control Unit * Arithmetic/Logic Unit * Main Storage Control Unit: The control unit ensures that all the other components, including the input and output devices, carry out their functions efficiently and effectively. ...read more.

Middle

All of the data is entered from an input device. The data will reside in memory while it is being processed, then it will be joined by the results of the processing, which will be contained until it is to be carried out and transferred to an output device. ROM (read only memory) holds predefined program instructions that were written onto the ROM permanently during the manufacturing. These instructions are 'non-volatile', which means the instructions are unaffected by loss of power, from the computer. RAM (random access memory) is possible to read or write to this type of memory but the contents will be deleted when the power is turned off and the data will not been saved. RAM is also used to hold programs such as Microsoft word while they are running - they are held as files on a disk when they are not in use. ...read more.

Conclusion

The more Complex systems are systems such as Microsoft(r) Windows NT/Windows 2000 and Windows XP; these are mainly used in network environments. If you are using Windows 95 or 98 in a school network server, it is likely that the operating system user is using a system such as Windows XP or Windows 2000. Applications software This is a program, which allows the computer to do a specific job. Examples are Microsoft Word, Microsoft Access, paintbrush, desktop publisher, adobe acrobat etc. These are used to do different jobs such as: Microsoft Word This program is used to create actual words or text on the computer. It includes tools, which allow data to be manipulated easily and are used to check for accuracy in spelling and grammar, by using processes such as spelling and grammar checks. Configuration A system will be setup on a standard configuration for most users. Forhad Hassan T079693 Leytonstone School 13411 ...read more.

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