PC stands for Personal Computer and refers to any IBM-compatible computer. The term PC comes from the first personal computer made by IBM.
Macintosh refers to any computer produced by Apple Computer.
PCs are much more customizable. Almost every PC is extremely modular, allowing parts to be switched out and upgraded one at a time, whereas all but the most expensive Macs are all-in-one devices, meaning that they must be upgraded all at once.
Sunday, October 17, 2010
The Relationship between an Application program, the operating system and hardware
An operating system acts as an interface to the other application program.
It is a software that acts as an interface between you and the hardware.
It is a translator between user and computer hardware.
It is a software that acts as an interface between you and the hardware.
It is a translator between user and computer hardware.
A Description of the Boot Process
Boot Process is a bootstrapping process that starts operating systems when the user turns on a computer system. A boot sequence is the initial set of operations that the computer performs when power is switched on.
The Functions of a Computer Operating System
Operating system is software, consisting of programs and data, that runs on computers and manages the computer hardware and provides common services for efficient execution of various application software. It is the core software component of your computer. It performs many functions and is, in very basic terms, an interface between your computer and the outside world.
OH+S considerations in the use of computer equipment.
DO
check the position of your screen
let your wrists rest on the desk
let your feet sit flat on the floor and not tucked under your chair
keep your shoulders and back relaxed
take regular breaks away from your PC
The power supply should be earthed properly.
DON'T
try to sit up straight
lift your shoulders when typing or clicking the mouse
collapse your neck as you read the screen
use your PC in low light conditions
check the position of your screen
let your wrists rest on the desk
let your feet sit flat on the floor and not tucked under your chair
keep your shoulders and back relaxed
take regular breaks away from your PC
The power supply should be earthed properly.
DON'T
try to sit up straight
lift your shoulders when typing or clicking the mouse
collapse your neck as you read the screen
use your PC in low light conditions
The Environment Considerations in the Disposal of Computer Hardware
All the computer hardwares must be kept in a dry clean and worm environment.
The hardwares should be clean regularly and properly.
The hardwares should be clean regularly and properly.
Thursday, October 14, 2010
Internal hardware components of a PC
Internal hardware components of a PC
| Component | Company | Picture | Description | Quantity | Cost |
|---|---|---|---|---|---|
| CPU | Intel |  | Intel Core i7 980X Extreme Edition B1 6 x 3,33 GHz (Boxed) The best CPU now. | 1 | $1,225 |
| Memory | Kingston |  | 2000MHz DDR3 provides perfect performance | 2 | $360 |
| Hard drive | Seagate |  | Serial ATA-300 gives a high velocity | 1 | $220 |
| Mothrboard | ASUS |  | Ultimate Performance & Future Transfer Technology Satisfaction | 1 | $239.99 |
| Power supply | Athena |  | Output over voltage protection Short circuit protection on all outputs | 1 | $164 |
| Video card | nVIDIA |  | GeForce GTX 480 (Fermi) 1536MB 384-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card | 1 | $399 |
| Sound card | Creative |  | Premium Sound Blaster Quality | 1 | $169 |
| DVD+RW | SONY |  | Blu-Ray rom can read and write blu-ray disks | 1 | $399 |
| Fans | Cooler masterr |  | Using patented technologies such as Heat Transfer Technology™ (HTT), Hyper Path™ and Hybrid Transformers™, the Silent Pro Gold sets a new standard in PSU excellence | 1 | $269 |
| Software | Windows7 |  | Windows 7 is the latest release of Microsoft Windows, a series of operating systems produced by Microsft for use on PC. | 1 | $219.99 |
| Totally Cost | $3664.99 |
External hardware components of a PC
External hardware components of a PC
| Component | Company | Picture | Description | Quantity | Cost |
|---|---|---|---|---|---|
| Monitor | ASUS |  | widescreen 25.5 inch LCD monitor from Asus that is perfect for watching TV, movie and play some high quality games | 1 | $552 |
| Case | Nvidia |  | There are a pair of front- and rear-mounted 12cm fans, and room for a veritable wind farm of active coolers | 1 | $299 |
| Keyboard | Microsoft |  | It has many additional functional keys which are very useful | 1 | $59.99 |
| Mouse | Logitech |  | The mouse without limits. You can conquer any surface | 1 | $99 |
| Speaker | Logitech |  | A 2.1 speaker system that lets you rediscover the art of listening—all around the room. | 1 | $199 |
| Printer | Dell |  | Print, scan, copy and fax with professional results and total efficiency. This fast, energy-conscious wireless printer helps accelerate productivity | 1 | $179 |
| Modem | TP-link |  | It is combined wired/wireless network connection device designed specifically for small business, office, and home office networking requirements. | 1 | $49 |
| Totally cost | $1436.99 |
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