Sunday, May 2, 2010

What is the difference between CL2 and CL3?

CL stands for CAS (Column Access Strobe) Latency, which is the amount of time that it takes to retrieve data from the module. CL2 and CL3 refer to the amount of clock cycles that it takes before the initial stream of data is sent. CL2 modules wait two clock cycles before sending data. CL3 modules wait three clock cycles before sending data. CL2 modules are faster since they only wait two clock cycles and therefore are usually more expensive. Some systems may require either CL2 or CL3 memory.

How do u find out how much memory is installed in the system?

Windows users - Right mouse-click on the "My Computer" icon and select "Properties." The total memory is calculated and displayed under the "General" tab in the system properties window.

Mac users - Select "About This Mac" or "About This Computer" from the Apple menu in the upper left corner of your Desktop. This will provide information about your Mac's total memory (built-in memory plus DIMMs or SIMMs installed).

The physical differences between PATA and SATA laptop hard drives

There are two different drives that are compatible with laptops and notebooks. These drives come in a small outline format commonly referred to as 2.5 inch drives (as compared to the larger 3.5 inch drives available for desktops). This smaller format is required due to the compact size of portable computers and the limited amount of space available for hardware. 2.5 inch drives are available with either PATA or SATA connectors. When replacing your laptop's hard drive, you need to know which drive will be compatible.

Will adding more RAM make my Internet browsing faster?

The easy answer is maybe.

Internet browsing speed depends on a huge number of factors, including your connection speed, traffic on the site you're visiting, and the other components in your system. You will probably notice the biggest improvement from additional RAM if are viewing or working with large files (such as photos and digital audio and video) or if you switch between your browser and other applications often, like to play games, or want to use your computer for viewing photos.

What are Motherboard Components?

It contains the following key components:
1.A microprocessor "socket" which defines what kind of central processing unit the motherboard uses.
2.A chipset which forms the computer's logic system. It is usually composed of two parts called bridges (a "north" bridge and its opposite, "south" bridge), which connects the CPU to the rest of the system;
3.A Basic Input/Output System (BIOS) chip which controls the most basic function of a computer, and how to repair it; and
4.A real-time clock which is a battery-operated chip which maintains the system's time, and other basic functions.

The motherboard also has slots or ports for the attachment of various peripherals or support system/hardware. There is an Accelerated Graphics Port, which is used exclusively for video cards; Integrated Drive Electronics, which provides the interfaces for the hard disk drives; Memory or RAM cards; and Peripheral Component Interconnect (PCI), which provides electronic connections for video capture cards and network cards, among others.

What is Computer motherboard?

A motherboard is the central printed circuit board (PCB) in many modern computers and holds many of the crucial components of the system, while providing connectors for other peripherals. The motherboard is sometimes alternatively known as the main board, system board.

What is the Celeron processor?

A brand name for a line of Intel microprocessors introduced in June, 1998. Celeron chips are based on the same P6 architecture as the Pentium III microprocessor, but are designed for economical or valued PCs. They run at lower clock speeds and are not as expandable as Pentium III microprocessors.

What is the Pentium processor?

A 32- bit microprocessor introduced by Intel in 1993. It contains 3.3 million transistors, nearly triple the number contained in its predecessor, the 80486 chip. Though still in production, the Pentium processor has been superseded by the Pentium Pro and Pentium II microprocessors. Since 1993, Intel has developed the Pentium III and more recently the Pentium 4 microprocessors.

What is meant by cross-compiler?

A program runs on one machine and executes on another is called as cross-compiler

Bluetooth signals do not interfere with our PCs or cordless phones or portables. Why?

Bluetooth uses low-power signals, it plays around in 2.45 GHz range, while most of consumer devices would be using 900 MHz.

What is meant by Maskable interrupts?

An interrupt that can be turned off by the programmer is known as Maskable interrupt.

What is the Maximum clock frequency in 8086?

5 Mhz is the Maximum clock frequency in 8086.

What are the flags in 8086?

In 8086 Carry flag, Parity flag, Auxiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sign flag.

What are the three main types of connection used by Bluetooth?

Single slave, Master slave, Scatterne.