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Saturday, January 23, 2010
NEW RATES
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NEW RATES
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IMPROVING DOWNLOADING SPEED
Check with your Internet service provider about Internet connectionoptions. The speed of your Internet connection is the most significant variable to your download speed. If you have dial-up Internet access, consider upgrading to a Direct Service Line (DSL) or a cable connection. Even if you already have cable, your Internet service provider may have faster cable services available.
Step
2
Understand a fast connection. Connection speed is measured by the amount of data that can be transferred per second, usually kilobits per second (Kbps) or megabits per second (Mbps). There are 1024 kilobits in one megabit. Most dial-up connections are 56 Kbps, while cable can be as fast as 20 Mbps. When you contact your Internet service provider, they should be able to tell you the speed of their connections.
Step
3
Close any open programs you do no need when downloading. This will free up your computer's resources to better handle the data transfer. If possible, have your computer download the files you need while you are away from the computer.
Step
4
Prioritize your downloads. Download only the files you really want first and start other downloads later. The more files you download simultaneously, the slower the files download.
Step
5
Try downloads at different times of the day. The more people who are downloading the same file, the slower the file downloads for everyone. If you are experiencing a slow download, try it at a different time of day when fewer people might be trying to download the same file.
Step
6
Install Download Accelerator. Download Accelerator is a program that optimizes your computer's download capabilities. It not only increases the speed of your downloads, it helps you manage them. When you begin downloading a file, Download Accelerator saves the file so that you can resume downloading it later if necessary. To get Download Accelerator, go to the Download website, search for Download Accelerator, click "Download Now" and follow the directions.
Step
2
Understand a fast connection. Connection speed is measured by the amount of data that can be transferred per second, usually kilobits per second (Kbps) or megabits per second (Mbps). There are 1024 kilobits in one megabit. Most dial-up connections are 56 Kbps, while cable can be as fast as 20 Mbps. When you contact your Internet service provider, they should be able to tell you the speed of their connections.
Step
3
Close any open programs you do no need when downloading. This will free up your computer's resources to better handle the data transfer. If possible, have your computer download the files you need while you are away from the computer.
Step
4
Prioritize your downloads. Download only the files you really want first and start other downloads later. The more files you download simultaneously, the slower the files download.
Step
5
Try downloads at different times of the day. The more people who are downloading the same file, the slower the file downloads for everyone. If you are experiencing a slow download, try it at a different time of day when fewer people might be trying to download the same file.
Step
6
Install Download Accelerator. Download Accelerator is a program that optimizes your computer's download capabilities. It not only increases the speed of your downloads, it helps you manage them. When you begin downloading a file, Download Accelerator saves the file so that you can resume downloading it later if necessary. To get Download Accelerator, go to the Download website, search for Download Accelerator, click "Download Now" and follow the directions.
RAM
Top L-R, DDR2 with heat-spreader, DDR2 without heat-spreader, Laptop DDR2, DDR, Laptop DDR
1 Megabit chip - one of the last models developed by VEB Carl Zeiss Jena in 1989Modern types of writable RAM generally store a bit of data in either the state of a flip-flop, as in SRAM (static RAM), or as a charge in a capacitor (or transistor gate), as in DRAM (dynamic RAM), EPROM, EEPROM and Flash. Some types have circuitry to detect and/or correct random faults called memory errors in the stored data, using parity bits or error correction codes. RAM of the read-only type, ROM, instead uses a metal mask to permanently enable/disable selected transistors, instead of storing a charge in them.
As both SRAM and DRAM are volatile, other forms of computer storage, such as disks and magnetic tapes, have been used as persistent storage in traditional computers. Many newer products instead rely on flash memory to maintain data when not in use, such as PDAs or small music players. Certain personal computers, such as many rugged computers and netbooks, have also replaced magnetic disks with flash drives. With flash memory, only the NOR type is capable of true random access, allowing direct code execution, and is therefore often used instead of ROM; the lower cost NAND type is commonly used for bulk storage in memory cards and solid-state drives.
Similar to a microprocessor, a memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information — a 0 or a 1 . The transistor acts as a switch that lets the control circuitry on the memory chip read the capacitor or change its state.
1 Megabit chip - one of the last models developed by VEB Carl Zeiss Jena in 1989Modern types of writable RAM generally store a bit of data in either the state of a flip-flop, as in SRAM (static RAM), or as a charge in a capacitor (or transistor gate), as in DRAM (dynamic RAM), EPROM, EEPROM and Flash. Some types have circuitry to detect and/or correct random faults called memory errors in the stored data, using parity bits or error correction codes. RAM of the read-only type, ROM, instead uses a metal mask to permanently enable/disable selected transistors, instead of storing a charge in them.
As both SRAM and DRAM are volatile, other forms of computer storage, such as disks and magnetic tapes, have been used as persistent storage in traditional computers. Many newer products instead rely on flash memory to maintain data when not in use, such as PDAs or small music players. Certain personal computers, such as many rugged computers and netbooks, have also replaced magnetic disks with flash drives. With flash memory, only the NOR type is capable of true random access, allowing direct code execution, and is therefore often used instead of ROM; the lower cost NAND type is commonly used for bulk storage in memory cards and solid-state drives.
Similar to a microprocessor, a memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information — a 0 or a 1 . The transistor acts as a switch that lets the control circuitry on the memory chip read the capacitor or change its state.
MOTHER BOADS
The motherboard is the large circuit board inside your computer's case. It's sometimes called the system board, the logic board, the baseboard, or less commonly, the planar board. Everything connected to your computer system, plugs either directly or indirectly into the motherboard.
I'm sure everyone has heard the CPU, or Central Processing Unit, referred to as the 'brain' of your computer. Well, the CPU sits on the motherboard, and if it can be called the brain of your computer then the motherboard is truly the central nervous system. The motherboard contains the CPU, the BIOS ROM chip (Basic Input/Output System), and the CMOS Setup information. It has expansion slots for installing different adapter cards like your video card, sound card, Network Interface Card, and modem. This circuit board provides a connector for the keyboard as well as housing the keyboard controller chip. It has RAM slots for your system's Random Access Memory (SIMMs or DIMMs), and provides the system's chipset, controllers, and underlying circuitry (bus system) to tie everything together.
The motherboard, more or less, is your computer. It defines your computer type, upgradeability, and expansion capability.
Non-Integrated Motherboards
Non-Integrated Motherboards have assemblies such as the I/O Port connectors (serial and parallel ports), hard drive connectors or paddle boards, floppy controllers and connectors, joystick connections, etc. installed as expansion boards. This takes up one or more of the motherboard's expansion slots and reduces the amount of free space inside your computer's case. Hence, the individual motherboard is relatively cheap to produce but, because of the cost of manufacturing, testing, and installing the expansion boards separately, there's an added cost to the computer system. However, if something should go wrong with the individual assemblies, such as a bent or broken pin in a connector, or a defective controller chip etc., you could repair the problem by replacing the individual expansion card at a relatively minor cost.
Most of the older motherboards were Non-Integrated. Some of the later 486 system boards began to integrate some of these assemblies right onto the circuit board.
Integrated Motherboards
Integrated Motherboards have assemblies that are otherwise installed as expansion boards, integrated or built right onto the board. The serial and parallel ports, the IDE and floppy drive, and joystick all connect directly to the motherboard. This is now standard on any late model 486 and above. It tends to free up some space inside the case and allows for better accessibility and air flow. The systems are cheaper to produce because there's less material involved, less installation, and testing can all be done at the same time. They are more expensive to repair because, if you end up with a controller failure or broken pin, it means a new motherboard (and, of course, because of the added assemblies, the motherboard can be more expensive than its non-integrated counterpart). However, these particular integrated assemblies are generally fairly stable and although problems can occur, they tend to be fairly rare.
All in all, the integrated motherboard tends to be a good thing as opposed to the 'Embedded Motherboard'.
I'm sure everyone has heard the CPU, or Central Processing Unit, referred to as the 'brain' of your computer. Well, the CPU sits on the motherboard, and if it can be called the brain of your computer then the motherboard is truly the central nervous system. The motherboard contains the CPU, the BIOS ROM chip (Basic Input/Output System), and the CMOS Setup information. It has expansion slots for installing different adapter cards like your video card, sound card, Network Interface Card, and modem. This circuit board provides a connector for the keyboard as well as housing the keyboard controller chip. It has RAM slots for your system's Random Access Memory (SIMMs or DIMMs), and provides the system's chipset, controllers, and underlying circuitry (bus system) to tie everything together.
The motherboard, more or less, is your computer. It defines your computer type, upgradeability, and expansion capability.
Non-Integrated Motherboards
Non-Integrated Motherboards have assemblies such as the I/O Port connectors (serial and parallel ports), hard drive connectors or paddle boards, floppy controllers and connectors, joystick connections, etc. installed as expansion boards. This takes up one or more of the motherboard's expansion slots and reduces the amount of free space inside your computer's case. Hence, the individual motherboard is relatively cheap to produce but, because of the cost of manufacturing, testing, and installing the expansion boards separately, there's an added cost to the computer system. However, if something should go wrong with the individual assemblies, such as a bent or broken pin in a connector, or a defective controller chip etc., you could repair the problem by replacing the individual expansion card at a relatively minor cost.
Most of the older motherboards were Non-Integrated. Some of the later 486 system boards began to integrate some of these assemblies right onto the circuit board.
Integrated Motherboards
Integrated Motherboards have assemblies that are otherwise installed as expansion boards, integrated or built right onto the board. The serial and parallel ports, the IDE and floppy drive, and joystick all connect directly to the motherboard. This is now standard on any late model 486 and above. It tends to free up some space inside the case and allows for better accessibility and air flow. The systems are cheaper to produce because there's less material involved, less installation, and testing can all be done at the same time. They are more expensive to repair because, if you end up with a controller failure or broken pin, it means a new motherboard (and, of course, because of the added assemblies, the motherboard can be more expensive than its non-integrated counterpart). However, these particular integrated assemblies are generally fairly stable and although problems can occur, they tend to be fairly rare.
All in all, the integrated motherboard tends to be a good thing as opposed to the 'Embedded Motherboard'.
Sunday, October 18, 2009
ITG_ITGUIDE
WE HELPS YOU TO IMPROVE YOUR KNOWLEDGE ABOUT COMPUTERS ITS PARTS AND ALL YOUR PROBLEMS.FIND NEW RATES OF INTERNATIONAL MARKET OF COMPUTER ACCESORIES . YOU CAN ALSO DIERECTLY TAKE ADVICES FROM OUR EXPERTS.
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