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Unit 10 Server-side scripting of web pages part 2

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Computer Systems Unit 2 Chris Young 5/11/2010 Table of contents P1 - 3, 4, 5, 6 P2 - 7, 8 P3 - 11, 12 P4 -13 P5 - M1 M2 M3 D1 D2 Resources http://www.itsky.com.au Explain the function of the system unit components and how they communicate Central processing unit - The Central Processing Unit (CPU) carries out the actual processing of data. The data it processes is gathered via the system bus, from the main memory. The CPU then sends back the results to main memory via the system bus. The CPU also controls and times the operations of the other key components. CPU's use in their operation: Fetch, decode, execute, and writeback. BIOS - The BIOS is a built-in software that decides what a computer can do without having access to a hard drive or CD/DVD. On PCs, the BIOS contains all the code required to control the keyboard, display screen, disk drives, serial communications, and a number of other miscellaneous functions. Motherboard - The motherboard is a printed circuit board (PCB) that houses and controls the components that are in charge of processing data. A motherboard provides the electrical circuit connections, these circuits are used by other components of the system to communicate. ...read more.


#5 Aero peek This feature allows you to make all open windows transparent this lets you view your desktop without minimising all your windows. This is another feature I love, I tend to save quite a lot of downloads to my desktop and being able to flick back and forth without minimising is great. #1 Snap #2 Taskbar #3 Thumbnail Previews #4 Jump List #5 Aero Peek Undertake routine maintenance tasks in relation to a PC. I will show you how to carry out several forms of maintenance, software, hardware and file management. Software maintenance To demonstrate software maintenance I'm going to update my antivirus. To start the process you first need to load up your antivirus (I'm using NOD32). Once the main antivirus window is open I need to navigate to the update option. Fortunately my antivirus does not need updating as my current virus signature database is up to date . This is what happens when it's not up to date, after a speedy download it will take me to the previous page and let me know if it's up to date. Hardware maintenance. To demonstrate hardware maintenance I'm going to find and use a printer that is connected to a separate computer on my network. ...read more.


Available utility software Utility software allows a user to analyze, configure, optimize and maintain their computer and should ned be confused with application software, this type of software allows us to create text documents, listen to music, browse the internet and much more. Utility Description Disk Defragmenters Locates files that are broken over different locations then moves the fragments to the same location to increase efficiency. Disk Cleaners This disk utility is designed to free up disk space and a computer's hard drive. It does this by searching and analysing the hard drive for files that are no longer of any use, it then removes the unnecessary files. Backup This involves making copies of important data so that these additional copies can be used to restore the original if it were lost or damaged. CLI and GUI CLI allows you to interact with a computer by typing commands in the text only interface. GUI is another way you can interact with a computer, instead of using a text interface it has a graphical interface that consists of icons. Registry Cleaners This utility was designed to remove registry entries that are no longer in use and are unwanted. Antivirus That is used to prevent and remove malware, including Worms, Trojan horses and computer viruses. ?? ?? ?? ?? 14 ...read more.

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