Explain the Hardware, Software and Peripheral Components of a Computer System and the Functional Relation Between These Components

Explain the knockoutwargon, bundle and peripheral components of a calculator system and the functional relation between these components. Fig functions of the direct systems (1) 1-Hardware Hardware consists of physical equipment of the computer. We specialize equipment within the Case such as Power supply it is the equipment that receives electricity from a DC current and converts it to a alternative current AC for the postulate of the computer. The power supply may depends on the motherboard of the computer because the wattage varies depends on other equipment inside the computer.Fig 3 power supply (4) The motherboard it is the main equipment of the computer. On it are stored and connected every(prenominal) other equipment. The motherboard is the central piece of the computer. We have many others components installed on the motherboards such as microprocessor, RAM, controller Fig 4 the motherboard (5) Microprocessor it is the consciousness of the computer. it means that all the operation on the computer are made by the microprocessor. It is also known as CPU (central processing Unit). it give the sack be measured in megahertz (MHz) or in Gigahertz depending of computer. he performance of the microprocessor is so important that it is essential to any customer to be aware(predicate) of the number of calculations it can perform before buying a computer 23. for example, Dell Optiplex 990 works with Intel Core i3 2100 (3. 1GHz). Fig 5 microprocessor (6) RAM it is Random gate memory. its role is to store instructions or data for a possible processing and its storage is temporally. it holds a list of instructions of an information that is currently working. it can be gatewayed randomly, it means that it does not have to look in the storage catch (hard phonograph bear witnessing) from the start to find a piece of interest 23.When we switch strike the computer any storage within the RAM, will be erased that is why we say the storage is temporally. RAM is the main memory because we can quickly access any files in the hard disk. Fig 6 RAM (7) ROM it stands for read merely memory. ROM differs from RAM in two ways commencement exercise it is not changed or erased after the computer is assembled, you can read it but cannot write on it, and second it remains unchanged even after the computer is turned off. 23 Fig19 ROM 22 Hard disk it is the component where data, files, operational systems are saved. t stored large amount of data depending on its size. the records stored are not volatile as in the RAM, but it remains until it is changed or deleted. it is measured in bytes. today we noticed that computer are almost hard disk capacity of 40 gigabytes. this performance of the disk capacity is one of the main measure when we are buying a computer. 23 Fig 7 the hard disk (8) Drive controllers its role is to control data transfer to and from the hard disk. it is a circuits that allows the CPU to communicate with the hard disk and the othe r kind of disk admit. or example the controller talks to the keyboard and to the mouse to enable the CPU to read information from them(2). we have aim controller such as IDE(integrated drive electronic) and SCSI (small computer systems interface) Fig 8drive controllers (9) CD-ROM Drive we use this drive to play and read CD-ROM (DISK COMPACT Read only memory) in the computer. we can also play audio CD. a typical capacity of the CD ROM is about 650 megabytes. they are now being overtaken by DVD (Digital Versatile Disk) because of their large capacity storage up to 3. 9 gigabytes. 23 Fig 9 CD ROM drive(10)Floppy drive we use this drive to save or read data in a floppy disk. a floppy disk is a small and removable storage devices that record data in square plastic jacket. fig 10 floppy disk drive (11) 2- Software The computer software are programs that controls the computer hardware. They didactics the hardware and tell them what to do and how to do it. We have many kinds of software operating systems software, application software, and drivers. Operating systems it is a program that controls and manages the computer in every task. it controls the input and the output of the computer such as disk drives or scanner.Two of the main features of the operating systems are -multi user it means that two or more users can run programs at the same time, it is used particularly with mainframe and minicomputer (3) -multitasking it means that it is able to execute more than one task at the same-time. For example we can play melody in the computer and use the write a document in Microsoft word. We have many type of operating systems -Windows (XP, VISTA, Windows 7) -Mac OS X -Linux there are additional operating systems that we find on the computer. We called them systems tools of the computer. e use them for the routine maintenance. routine maintenance is opposite method we take to keep our computer safe and without problems. we have tools such as Disk defragmenter it is a tool that we use to keep our computer running play quickly and efficiently. it organizes and consolidates data on the hard disk, allowing the systems to run faster. we have to use it at least every week. 17 Disk cleanup it is a tool that enables us to free space in the hard disk and improve the performance of the computer. we use it to remove and delete programs such as temporally internet files, or programs that we ont use. 17 Backup, 17 Application software they are programs designed to handle specific types of information and achieve useful results. We distinguish many kinds of application software -word processing in those applications we can create text documents. E. g. Microsoft word -database in those applications we can create and edit data records. E. g. Filemarker pro -presentation graphics we have the initiative to draw, create 2D and 3D graphics. E. g Corel Draw -media player with those applications we can play Video, MP3, and other audio formats. E. g.QuickTime playe r It facts application software depends on platforms and operating systems. for example there are some applications that cannot work in Drivers there is a program that controls a particular hardware device. Devices such as keyboard, varan and printer are controls by a driver. Without those drivers the devices cannot function properly. 3-Peripheral components of the computer the peripheral components of the computer can be input or output devices such as Monitor it is a device made as a screen where information is represented. it is one of the most important peripheral components of the computer.Fig 11 oversee (12) Keyboard it is a device that we use to write or enter data text into the computer. Fig 12 keyboard (13) Mouse it can be defined as a device composed of one or many button that we used to select or to choose specific things through a cursor in a screen. fig 13 mouse(14) Printer it is a device that we use to represent physically text or graphic data or information stored i n the computer. We represent it through a paper. we have many kinds of printer Dot matrix printer it can print up to two hundred characters per seconds the print head is hammered very rapidly over the paper.Laser jet printer and ink jet printer. fig14 ink jet printer (15) electronic scanner it is a input device used to scan or copy pictures, text to the computer. fig 15 scanner 16 Digital camera it is a device that we use to record video. We can transfer our recorded video to our computer, and edit them, or email them to friends. fig 16 digital camera19 Loudspeakers we use these devices to play music or to use some application that involves sound hearing. fig 17 computer loudspeakers 20 Microphone we use microphone to create or record a voice or a sound . ometimes we use it for communicating with friends via internet. 18 fig 18 computer microphone 21 References 1-www. cisco. co. uk 2-http//encyclopedia2. thefreedictionary. com/Hard+drive+controller 3-http//www. webopedia. com/TERM/ M/multi_user. html 4-http//trustcomputers. co. uk/index. php? main_page=index&cPath=2 5-http//www. teach-ict. com/gcse/hardware/parts/miniweb/motherboard. htm 6-http//www. cpu-world. com/CPUs/K10/TYPE-Sempron. html 7-http//www. pcextreme. net/news/your-ram-check-it/ 8-http//www. novell. com/coolsolutions/appnote/16837. html 9-http//www. techarp. om/showarticle. aspx? artno=388&pgno=2 10- http//www. powersourceonline. com/buy-equipment/ibm-Parts/10K3782/31776879-10K3782-cy-en. jsa 11_http//www. darlingtoncomputerrepairs. co. uk/index. php? main_page=product_info&cPath=58_100&products_id=87 12- http//www. lcd-monitor-reviews. com/lcd-monitor-reviews/iiyama-AS4611UT-lcd-monitor-review. html 13- http//voices. canonical. com/joey. stanford/2007/11/ 14- http//www. tomshardware. com/reviews/microsoft-breeds-unique-mice,1554-2. html 15-http//www. inkandmedialtd. co. uk/blog/epson-r300-inkjet-printer-review/ 16-http//www. letsgodigital. rg/html/events/PHOTOKINA-2004/news/epson/PERFECTION-418 0_en. html 17-http//www. microsoft. com/atwork/maintenance/speed. aspx 18-www. camcorderinfo. com/content/Glossary. htm 19-http//digital-cameras-planet. com/ 20-http//www. comparestoreprices. co. uk/Trust-computer-speakers-reviews. asp 21-http//www. custom-product. com/wholesale-items/662/714-1/computer-microphone-cm-9002-129285. html 22-http//www. novopc. com/2008/09/rom-read-only-memory/ 23- Brendan Munnelly, Paul Holden, 2000, ECDL3 the complete coursebook, Prentice Hall, Redacteurs Software Documentation Limited 2000