Intel introduced the PCI bus architecture in the early 1990s, andthe PC expansion bus was never again the
Tuesday, 18 September 2012
Touch Screens
A touch screen is a monitor with some type of sensing device across its face thatdetects the location and
Biometric Devices
PCs use biometrics for security. Biometric security devices scan and rememberunique aspects of various body parts such as your
scanner
A scanner enables you to make digital copies of existing paper photos, documents,drawings, and more. Better scanners give you
CMOS Setup Utility
The CMOS setup utility, stored in the system ROM, enables you to configureimportant system BIOS settings stored in the
System BIOS and CMOS Setup Utility
System BIOS andCMOS Setup UtilityYou never deal directly with the many BIOS routines, but instead interactwith themonly peripherally
Monday, 17 September 2012
Entering the CMOS Setup Utility
You can’t enter the CMOS setup utility from within your OS; you must do itduring the early stages of
CMOS Setup Utility
The CMOS setup utility, stored in the system ROM, enables you to configureimportant system BIOS settings stored in
Updating the System BIOS
Techs refer to updating system BIOS as flashing the BIOS. It’s a simple procedure,but youmust take care to
System BIOS
The system BIOS contains many routines—called services—to initialize andsupport the many devices that make up amodern PC. Services control
System BIOS and CMOS Setup Utility
You never deal directly with the many BIOS routines, but instead interactwith themonly peripherally through theCMOSsetup utility.Motherboardmanufacturers don’t
Beep Codes
Beep codes vary according to the PC’s BIOS manufacturer, although you’ll findcertain codes are common on most PCs. A
Sunday, 16 September 2012
System ROM
The system ROM chip stores the system BIOS routines and CMOS setuputility. SystemROMis distinctively labeled with the BIOS
OS Loads
During POST, the BIOS also locates the system boot device—such as the floppydisk, CD-ROM, or hard drive—that contains
POST Cards
POST cards aren’t the kind you use to send snail-mail holiday greetings.A POSTcard, is a dedicated hardware component
Numeric and Text Codes
POST may also display numeric or text errors indicating the nature of a hardwareproblem. Numeric error codes are
Beep Codes
Beep codes vary according to the PC’s BIOS manufacturer, although you’ll findcertain codes are common on most PCs.
POST Error Codes
As you may have guessed, the POST process is the most vital of the steps in theboot process.
Boot Process and POST
The three main stages of the boot process are the power-on, power-on self test(POST), and operating system (OS)
Back Up and Restore Existing Data, if Necessary
Whether you are installing or upgrading, you may need to back up existing user data before installing or
Thursday, 13 September 2012
How to boot\format windows 7
1.Open your computers bios 2.keep cd-rom in first priority and save it3. after the in the screen "press any
Multiboot
A third option that you need to be aware of is dual boot ormultiboot installation.BothWindows 2000 andWindows XP can
Upgrade Installation
In an upgrade installation, the new OS installs into the same folders as the oldOS, or in tech
Clean Installation
A clean installation usually begins with a completely empty hard disk. The advantageto doing a clean installation is
Wednesday, 12 September 2012
Perform a Clean Installation or an Upgrade
A clean installation of an OS involves installing it onto an empty hard drive withno previous OS installed.
Verify Hardware and Software Compatibility
Assuming your system meets the requirements, you next need to find out howwell Windows supports the brand and
Identify Hardware Requirements
Hardware requirements help you decidewhether a computer systemis a reasonablehost for a particular operating system(OS).Requirements include the CPUmodel,
Preparing for Installation or Upgrade
Because installing an OS can be a time-consuming task, even when everything goes right, theWindows installation process holds
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