Explain the function of the system unit components and how they communicate.
Motherboard
Motherboard is central printed circuit board. it is the most important unit in system unit it holds all the other system components inside the system unit. and provide the connection of them.
CPU is central processing unit, it handles the most calculation. and it's like boss giving the instruction to all the other system components.
Hard-drive
The hard drive stored all your programs and files inside your computer. if you broken your
hard drive you will lose all your file inside computer.
RAM
RAM is abbreviation of ramdom access memory. it provides the space for your computer to read and write data . it is accessed by the CPU . the memory which is inside RAM is volatile if you shout down your computer you will lose data from ram.
Graphic card
A graphic card is use to generate output images to display , better graphic card will give better image performance .
Power supply device supply the electrical energy to computer. spport all system components running smoothly.
Cooling fan
Because when computer running so hard, it will generate heat ,cooling fan is a device use to passing the cold air to entire system unit to cooling the temperature down. prevent heat cause computer burning.
Operating system
Windows 7 is the latest version of Microsoft windows, many people says it is very good, really convenient to use. so that us see where is good.
Sensors.
Windows 7 will include context-aware application support via a new "sensors" facility. One example: A location sensor can tell "where" your PC is and compatible applications can act accordingly. Applications can use sensor information to offer customized and enhanced services, according to Microsoft's documentation. Because of the privacy implications of sensors, this feature is opt-in and highly configurable.
User Account Control improvements.
There are four settings will be available:
1. Never notify. not notified when a program tries to install
2. Only notify me when program try to make changes to my computer.
3. Always notify me. the user is notified when program tries to install software or make change to the computer.
4. Always notify me and wait for my response.
User interface
Windows 7 has a new application UI. codenamed scenic, that will gives windows 7 a new and consistent, but customizable, feels.
Tweaked explorer
Explorer of windows is being updated, it has various feature including a resizeable search box, a simpler new tool bar and new icon view style. etc.
windows mobile device centre
There are four settings will be available:
1. Never notify. not notified when a program tries to install
2. Only notify me when program try to make changes to my computer.
3. Always notify me. the user is notified when program tries to install software or make change to the computer.
4. Always notify me and wait for my response.
User interface
Windows 7 has a new application UI. codenamed scenic, that will gives windows 7 a new and consistent, but customizable, feels.
Tweaked explorer
Explorer of windows is being updated, it has various feature including a resizeable search box, a simpler new tool bar and new icon view style. etc.
windows mobile device centre
previously a free, but separate download, windows mobile device centre is included with windows 7.
Mac OS x
Mac OS x is graphical operating system is tenth major version of apple's operating system . it has many useful feature.
Aqua
The graphic user interface of MAC OS is called Aqua。 this includes the look and behaviours and integration of GUI elements . carbon,cocoa, and java, all support Auqa. Mac OS X includes an optimized X windows server including a native Aqua windows manager that lets you run X11 applications.Data and information management
Mac OS X makes a very good attempt at keeping various data and information organized by context, rather than having files strewn all over the place. And one of the most useful feature of Mac OS X is its support for synchronization of your computers configuration.
Devices
Apple has excellent support for fire wire device. you can readily boot from external drives, treat a Mac to behave as if it were an external fire wire drive .
Ilife
Apple's ilife suite (IDVD, imoive, iphoto, itunes and Garageband) are possibly the best application you can get bundled with any operating system.
Security
Ilife
Apple's ilife suite (IDVD, imoive, iphoto, itunes and Garageband) are possibly the best application you can get bundled with any operating system.
Security
Mac OS X includes various security features, services, and APIs, such as those for controlling/managing passwords, certificates, public/private keys, trust policies, etc.
Step 2 click updating from update now.
Schedule a full system scan for every friday.
Step 1 click computer scanner. Edit scan schedule.
Clean-up tools defragment hard drive.
Step 1 right click drive which you want to do defragment, select properties.
Step 3 click defragment now
step 4 select the drive you want to do defragment.
Step 5 process.
Drive formatting
Step 1 right click drive which you want to do format.
Step 2 select quick format click start (but be careful if you have virus inside drive quick format won't eliminate).
Copy files, delete files and crate new files
Step 1 of copy files right click file which you want to copy and click copy from menu bar.
Step 1 of delete files click file which you wan to delete and click delete form menu.
Step 1 of paste files choose a location where you wan to save this file and right click choose paste.
Step 1 of crate new folder right click blank place and select new then choose folder.
Back-up to CD using compression software.
Step 1 right click file which you want to back-up to CD and add to archive.
Step 2 name the archive name and click OK.
Install and run a firewall
Step 1 go to firewall official website .
Task 1 B
Explain the effect of activities.
Firewall
Fire wall Will check inbound and outbound traffic on your computer, and block not necessaries data which is come in to computer. firewall will makes computer more secure than computer which does not have.
Anti-virus update
Even though firewall can reduce computer secure risk , but there are hacks and virus can make fire wall stop working properly. that is why we need to update latest Anti-virus database.
Schedule scan
As we know anti-virus can not schedule scan before we setting. (there are some anti-virus software will automatic set it after we install it.) anti-virus schedule scan will check computer regularly, if there are any computer risk, we can find it before it cause a big problem.
Update operating system
No any software is safe in this world including operating system , update operating sytem will help you repair system security risk and any bugs, it sometimes also bring the new feature of system.
De-fragment
De-fragment hard drive it is like cleaning house for you computer, it pick random data and put them together, delete not useful data and re-arrange space for new data. in the other word it makes computer "faster".
Drive formatting
Drive formatting use for cleaning out space in drive. it can also cleaning virus as well.
There are two ways of formatting, one is quick formatting, it can formatting the drive quickly. but if computer has virus inside, it will be remain inside.
The other one is formatting , formatting will thoroughly cleaning the computer. but it takes more time than quick formatting.
Create folders ;copy files; paste files and delete files will help to manage files more convenient.
Back-up
In case if you computer broke down lost all files, we need to have back up of our system and data.
Fire wall Will check inbound and outbound traffic on your computer, and block not necessaries data which is come in to computer. firewall will makes computer more secure than computer which does not have.
Anti-virus update
Even though firewall can reduce computer secure risk , but there are hacks and virus can make fire wall stop working properly. that is why we need to update latest Anti-virus database.
Schedule scan
As we know anti-virus can not schedule scan before we setting. (there are some anti-virus software will automatic set it after we install it.) anti-virus schedule scan will check computer regularly, if there are any computer risk, we can find it before it cause a big problem.
Update operating system
No any software is safe in this world including operating system , update operating sytem will help you repair system security risk and any bugs, it sometimes also bring the new feature of system.
De-fragment
De-fragment hard drive it is like cleaning house for you computer, it pick random data and put them together, delete not useful data and re-arrange space for new data. in the other word it makes computer "faster".
Drive formatting
Drive formatting use for cleaning out space in drive. it can also cleaning virus as well.
There are two ways of formatting, one is quick formatting, it can formatting the drive quickly. but if computer has virus inside, it will be remain inside.
The other one is formatting , formatting will thoroughly cleaning the computer. but it takes more time than quick formatting.
Create folders ;copy files; paste files and delete files will help to manage files more convenient.
Back-up
In case if you computer broke down lost all files, we need to have back up of our system and data.
Task 1 C
System profile
A system profile is a uitility that provide the detail of information program/software which has installed in this computer.
Computer system backup utilities can back up data stored on a disk which if you computer corrupted it will be very helpful.
File managers provide a convenient method of performing routine data management tasks, such as deleting, renaming, cataloging, uncataloging, moving, copying, merging, generating and modifying data sets.
Disk error-check can scan the disk to find the files or areas where is corruped or not install correctly and deleted them . it helps solve disk problem more easily.
Printer installation.
The video shows above it explained to install the printer and download printer drive.
As we now, when we bought a printer, when you plug USB to computer, sometimes it does not work, it is because, this computer does not have driver to support printer running, therefore why we need to know how to install printer drive.
In the other hand, sometimes computer default driver can support some printer running, but the disadvantage is it will not giving full function of printer.
Undertaken clean up of the equipment.
In this video , it shows three equipment what we use to cleaning the computer ,
Brush, foam-clene and phone-cleane hygiene wipes.
(In this video because Phone-clene hygiene is last for long time so it already dry out , therefore why we using foam-clene spray on it.)
computer is a delicate device, it can be damage form virus;hacker which is virtual. and it can also be damage by dust,water, etc.. physically , therefore why we need to learn how to cleaning our computer for long term use.
DVDR/W installation.
These two video in different way shows how to install DVDR/W and how to check it if DVDR/W install properly.
As previous session, we were talk about using CD/DVD to back up our system, just in case if system is crashed down lost all data inside.
In order to do that we need to have DVDR/W first. DVDR/W is use for read and write data from disk, if we do not have DVDR/W we can not write data to the disk; and read data from the disk.
Installation of XP service pack 3
In this video shows how to install XP service pack 3 manually.
No any software is safe in this world including operating system , update operating system will help you repair system security risk and any bugs, it sometimes also bring the new feature of system. therefore why we need to update our system to XP service pack 3.
Task 4
Introduction to this report
The purpose of this report is to report back consideration of 3 commercially available computer systems, explain and justify these three selection ,and present to Mr. Thein .
The recommendation of these computer is going to use in internet cafe in Myanmar as it will help to generate some income to support the recycle centre office in Myanmar ,
computer's price and specification are provided , link is also included in report .
Choice one
Vostro 230 Mini tower
Specifications see below:
Processor : Dual Core Processor E6500 (2.93GHz, 1066MHz FSB, 2MB L2 Cache)
Operating system: Windows 7 Professional (32 BIT) with Recovery DVD
Antivirus-software: Trend Micro Worry-Free Business Security Services, 15-months
Memory: 2048MB (2x1024) 1333MHz DDR3
Monitors/displays: Dell E-series E1910H 18,5" 47 cm Wide monitor VGA only, (1366x768) Blk Euro
Hard drives :320GB Serial ATA (7200RPM)
Optical drive: 16X DVD+/-RW Drive (No PowerDVD as included in OS)
There are special offers.
Free hard drive upgrade from 250GB to 320GB
See more detail please follow this link: http://www1.euro.dell.com/uk/en/business/4x_vostro_230/fs.aspx?refid=4x_vostro_230&s=bsd&cs=ukbsdt1
The reason why choose this computer system in comparison is
First this computer system has decent processor : dual core processor E6500
which speed is (2.93GHZ,1066MGZ FSB 2MB cache), and also because it has 2048MB (nowadays average memory capacity) it can handle good quality FTP, graphics and multimedia software as well as run the usual word processing spreadsheet and database software. available for upgrade graphics card to1GB NVIDIA GEFORCE GT220 which will increase the price to £ 529.00 but is still the good system for internet cafe ,it can also run heavy games and use for multi-purpose. The original price is £399.
Choice two
COMPAQ presario SG3110 uk-m DESKTOP PC with 20'' MONITOR
specifications
Processor: AMD Athlon II X2 215 processor (2.7GHZ 2GHZ HT 1MB CACHE)
Operating system: windows 7 home premium 64-bit
RAM:2 GB DDR3
Graphics card: ATI mobility radeon HD 3000 series
Hard drive:320GB 3200RPM SATA
Optical disk drive: DVD-rewriter
This computer system is powered by the AMD Athlon II X2 215 processor and ATI mobility Radeon HD 3000 series.
It is also include 2GB of RAM and massive storage drive with 320GB hard drive which allow you to store large number of data. It is also include DVD-Rewriter optical drive. If you finished your working you copy and write data to DVD disk or to computer. As good as choice above, this computer system can handle heavy graphics and multimedia software, and used for any kind of multi-purpose. The price which is the best of these three choice. £369.99
Choice three
HP G5210uk with HP S2031a 20" Widescreen LCD
Specifications
Processor: AMD Athlon II X3 440 processor( 3.0GHZ 2.0GHZ HT 1.5MB L2 CACHE)
Operating system: WINDOWS 7 home premium 64-bit
Ram: 3GB DDR3
Graphics card: NVIDIA GEFORCE 6150 SE
Optical disk drive: DVD-RW DL
Hard drive: 500GB (7200 RPM)
This is one I strongly recommend in among these three computers. First it has 20'' wide-screen, greatest view when you watch film, and flat body save the space in the internet cafe which allow you to set up more computers. Then it powered by fast processor. 3GB of RAM which able to run any kind of heavy games and use for any kind of multi-entertainment purpose.
NVIDIA graphic card is famous graphic card , plus large amount of RAM space which allow you to run word processing, spreadsheet and database soft at same time, as well as run good quality DTP, and multimedia software.
Massive hard drive space up to 500 GB storage which allow you to store as much files as you want from internet. Reasonable price is £500. Here are the links to the products.
EPSON Stylus Office BX305FW Wireless Multifunction Inkjet Printer
In internet cafe when people finished their work, usually they need to print out some works. Also they need to scan documents as well. So we need printer and scanner all in one to save the space and price. This printer and saner is special design for place such as office, internet café etc, where is going to do a lot of print out . Fast process and good quality of print out is the reason why I chose this printer. The price is £79.99. And the link is shown below.
This topic explains the main brain of the computer and how it is working. Each of the components of the system unit has a role to communicate each other to prepare any activities properly.
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