Tips On Buying A Computer Memory.

Introduction of Computer memory.

        The Computer memory plays very important role in data processing. Computer memory means the computer can use powerful program with large size. It also improves the data procession speed of computer, that is way it is very important to verify When purchasing a computer memory, this memory is suitable for your computer and needs. Below is a listing of different considerations and tips to look for when purchasing computer memory.

Type Of Memory

         There are many types of memory available in market, Before purchasing any memory or considering purchasing memory it is important that you distinguish the type of memory that is required. Below is a listing of some of the configurations of computer memory.

• Memory type: SIMM, DIMM, RIMM,
• Amount of Pins: 72-Pin, 30-Pin, etc..
• Speed of memory: 10ns, 60ns, 70ns, etc..

Below is a listing of additional considerations to look out when purchasing computer memory.

Tips For Buying A Hard Drive

Introduction of Hard Disk

        Today hard disk is most commonly used storage device in personal computers and laptop computers. Mostly application program and operation systems require hard disk for installation and operation. That is way it is very important to verify When purchasing a hard disk drive, this hard disk drive is suitable for your uses and has or does not have the options you may or may not need.

Interface of the hard disk

          There are many types (interface) of hard disks available in the market for example IDE/ATA,SCSI,External hard drive. That is why first decide your need is internal or external hard drives. When looking to purchase a hard disk drive the first it is important consideration is the Interface the hard disk drive uses to communicate with the computer .

• IDE/ATA This type of hard disk is used with IBM compatible computers, and very easy to install in a computer. Each IBM computer has the availability for a maximum of four IDE devices, for example IDE hard disk , CD drive and DVD drive.

• SCSI The SCSI interface is generally a better and faster solution when compared to IDE/ATA but this solution is not best for common user only best for server level machine. however in some cases can be more difficult to install. To install a SCSI hard disk drive you must have a SCSI card and an available connection on the SCSI cable connecting to the SCSI card.

• External Hard disk There are many solutions are also available; these include, USB Hard disk drive, Fire wire Hard disk drive and Parallel Hard disk drive. The main benefit with external hard disk, you can move it where you want very easily. Mostly external hard disk is used for data backup and change the physical location of data.

Other considerations

       Here are some important considerations to look at when purchasing a computer new hard disk drive:

• Speed: Hare disk speed is playing an important role when your consider a computer speed. The accessing speed of hard disk is also very high as compare to other storage devices. It is from 5 to 15 MBps. The platters of hard disk rotate from 3000 to 10,000 revolution per min.
• Warranty: How long is the warranty and what does it cover.
• Support : Is the technical support number a free number is it open 24 hours 7 days a week.

Tips For Buying Flat Panels

Introduction of Flat Panel Monitors

         These are two basic type of monitor that are used with personal computer, CRT Monitor and Flat-Panel Monitor. Flat Panel is a relatively new technology when compared to the CRT or standard monitor technology. Due to new technology some important considerations to look at when purchasing a flat panel Monitor.

Technology of LCD

          There are two categories of LCDs then Before looking at what type of configurations you need to look for when purchasing a computer Flat Panel it is important to know if you want Active Matrix LCD or Passive Matrix LCD.

Look for the best flat panel TV deal so you can buy at discounted prices.

Active Matrix LCD : Active Matrix LCD uses a transistor for each liquid crystal cell or pixel and thus displays high quality images. Active Matrix LCD is also known Thin Film Transistor(TFT) display. Today, new generation of TFT is called organic LED that displays brighter images than standard TFT display. The organic LED uses organic molecules to generate output on the screen.

Passive Matrix LCD : Passive Matrix LCD uses fewer transistors and requires less power than active matrix LCD. The colors on Passive Matrix LCD are not bright as compared to active matrix LCD.

Resolution

             The quality of LCD screen depends on its resolution, which is generally proportional to the size of screen.

15" flat panel monitor typically has a resolution of 800 x 600 / 1,024 x 768

17" flat panel monitor typically has a resolution of 1,280 x 1,024

19" flat panel monitor typically has a resolution of 1,280 x 1024

21" flat panel monitor typically has a resolution of 1,600 x 1,200.

Tips On Buying A DVD Drives.

Introduction

            DVD drives is used with computer to read the information from the DVD-ROM. Today DVD drives have transfer rates ranging of different capacity. Buying a DVD drive is confusing task, because there are many option for this purpose are available in market. Below we have listed important considerations to look at when considering purchasing a DVD drive.

• Technology of DVD Drives
• Before considering purchasing a DVD drives, it is also good consider the other available options.
• CD-R - A CD-writer or recorder (or simply CD-R drive) is used to write data on CD-R disks. Usually, a CD-writer can read information from CD as well as write information on CD, The locally produced CD-R disks are created with CD writer. The speed of these drives is up to 52X or more.
• CD-RW - You must have a CD-RW drive to write date on the CD-RW. These drives have read and write speed is up to 52X or more but the re-write speed is 10X or more. The CD-RW drive is advanced and more expensive than CD-R drive. It can write data on both CD-R and CD-RW discs and also read data from them
• DVD - DVD stands for Digital Video Disk Versatile Disc. DVD-ROM is an extremely high capacity optical disc with storage capacity from 4.7 GB to 17 GB.
• TRANSFER RATES
• DVD-ROM is an extremely high capacity optical disc with storage capacity from 4.7 GB to 17 GB. DVD disc is specially use to store movie films. It is also used to store huge database, music, complex software etc.
• OTHER CONSIDERATIONS
• There are some other important considerations to look at when purchasing a computer DVD drives include:
• DVD option: DVD-R, DVD-R DL, DVD+R, DVD+R DL,DVD-RW, DVD+RW, DVD+RW DL, DVD-RAM.
• Warranty: How long is the warranty and what does it cover.
• Support : Is the technical support number a free number is it open 24 hours 7 days a week.

Tips On Buying A CD-ROM Drives.

INTRODUCTION

         CD-ROM drive is used with computer to read the information from the CD-ROM. Today CD-ROM drives have transfer rates ranging from 48X to 75X or more. Generally Purchasing a CD-ROM drive relatively easy task however can involve some considerations when purchasing.

Technology of CD-ROM

     Before considering purchasing a CD-ROM it is also good consider the other available options.

• CD-R - A CD-writer or recorder (or simply CD-R drive) is used to write data on CD-R disks. Usually, a CD-writer can read information from CD as well as write information on CD, The locally produced CD-R disks are created with CD writer. The speed of these drives is up to 52X or more.
• CD-RW - You must have a CD-RW drive to write date on the CD-RW. These drives have read and write speed is up to 52X or more but the re-write speed is 10X or more. The CD-RW drive is advanced and more expensive than CD-R drive. It can write data on both CD-R and CD-RW discs and also read data from them
• DVD - DVD stands for Digital Video Disk Versatile Disc. DVD-ROM is an extremely high capacity optical disc with storage capacity from 4.7 GB to 17 GB.
• TRANSFER RATES
• Today CD-ROM drives have transfer rates or speeds ranging from 52X to 72X or more. For Example, a 52X CD-ROM drive has a data transfer rate of 7,200 KBps (i.e. 48 X 150 = 7200)or 7.2 MBps. It means that the higher the number, the faster the CD-ROM drive. This speed is generally only going to be noticeable when installing a program or copying large amounts of data from a CD.

PRICE RANGE

       For a CD-ROM drive, not to be confused with a CD-R, CD-RW or DVD drive can vary depending upon the speed and the interface the CD-ROM drive uses.

Information About Purchasing A New Computer Chassis

INTRODUCTION

            Generally there are two types of Computer Case are available in market, for Example Tower case and desktop case. The system unit of the desktop personal computer can lie flat on the desk or table and the monitor is usually placed on the system unit. An other model of the computer case is known tower. The system unit of the tower PC is vertically placed on the desk or table. But purchasing a computer case is generally not an important consideration when you are going to buy a Computer. However it depends upon the user needs and choice to building a computer case may find it important to consider the following considerations.

CONSIDERATIONS

• Color of Case
• Type of Case (Tower case and Desktop case)
• Size of Case

The main and important factor is Upgrade availability in case.

• Please must consider that case have enough slots which will allow you to add additional hard disk CD-ROM, Floppy drives or other drives.
• Other main consideration is that case have the availability for slots for additional cards to be placed in. For Example VGA Card, LAN card and internal Modem.

Tips On Buying A CPU / Processor

INTRODUCTION

       Processor is considered the brain of the computer. The CPU fetches instructions of program from main memory and executes them one by one. The speed of the CPU is measured in Mega Hertz or Giga Hertz and speed from 500 MHz to 3.4 GHz, it depends upon a user needs, that is why purchasing a processor is an important consideration when building or buying a computer. There are several considerations and additional information about what to ask and look for when purchasing a processor directly or already installed into a computer. 

TYPE

       The type of the processor can be very important consideration for users who are building a computer. The main thing in processor is the compatibility with the motherboard, Because the processor chip is plugged into the motherboard. Today there are many processor manufacturers AMD, Motorola and Intel. Final decision to buy a processor depends upon user need for example a home or basic user can buy Intel Celeron or AMD processor. If you can afford then must go for latest processor if you want your computer to retain functionality for four to six years. When considering any of the above companies product ensure that a motherboard that is compatible with that product is also purchased. For example if an Intel motherboard is purchased or currently installed into the computer you will want to consider an Intel Processor.

Tips on Buying a Server Machine

Introduction

          Server is the most powerful and fastest, and also very expensive machine. It is used to process large amount of data and to solve the complicated scientific problems. The severs computers are used in large organization such as Banks, Airlines and Universities, that it is a big decision for organization to buy a proper server machine according to their need Below is information and help for what to look out for when purchasing a computer server. It is important to also note that every business is unique and may require more or less of what is listed below. 

NEW vs. USED

              Today there are two options to buy a Server computer, a new or used computer. Used computer are some time out of date, but you can buy it with very low price as compare to new computer, but I think branded or used computer are much stable than a new computer. Before purchasing a Server computer consider if you should purchase a new or used computer. Many individuals sell computer before they are out of date allow you to purchase a relatively decent computer. Before purchasing a new computer from a computer manufacture look at what is available and review the below precautions when purchasing a computer.

More Considerations

               When purchasing a Server computer it is likely that you will have a general idea of what you may like in the computer or how you would like to configure the computer. Below is a listing of the various components likely to be found in a computer and recommendations and tips when considering any of the following components.

Device	Short recommendation
Case	Generally there are two types of Computer Case are available in market, for Example Tower case and desktop case. The system unit of the desktop personal computer can lie flat on the desk or table and the monitor is usually placed on the system unit. An other model of the computer case is known tower. The system unit of the tower PC is vertically placed on the desk or table. But purchasing a computer case is generally not an important consideration when you are going to buy a Computer. However it depends upon the user needs and choice to building a computer case may find it important to consider the following considerations.
CD Media	CD-R -always will be an important consideration to think about when purchasing a new computer or used computer. A CD-writer or recorder (or simply CD-R drive) is used to write data on CD-R disks. Usually, a CD-writer can read information from CD as well as write information on CD, The locally produced CD-R disks are created with CD writer. The speed of these drives is up to 52X or more. CD-RW - You must have a CD-RW drive to write date on the CD-RW. These drives have read and write speed is up to 52X or more but the re-write speed is 10X or more. The CD-RW drive is advanced and more expensive than CD-R drive. It can write data on both CD-R and CD-RW discs and also read data from them DVD - DVD stands for Digital Video Disk Versatile Disc. DVD-ROM is an extremely high capacity optical disc with storage capacity from 4.7 GB to 17 GB.
Hard Drive	Hard drives have and always will be an important consideration to think about when purchasing a new computer or used computer. Hard disk is most commonly used storage device in personal computers and laptop computers. Most application programs and operation systems require hard disk for installation and operation.
Processor	The computer processor is and will always be an important consideration when purchasing a computer. Processor is considered the brain of the computer. The CPU fetches instructions of program from main memory and executes them one by one. The speed of the CPU is measured in Mega Hertz or Giga Hertz and speed from 500 MHz to 3.4 GHz, it depends upon a user needs, that is why purchasing a processor is an important consideration when building or buying a computer. There are several considerations and additional information about what to ask and look for when purchasing a processor directly or already installed into a computer.

Tips On Buying A Desktop Computer

INTRODUCTION

                 A desktop personal computer is a most popular mode of personal computer. The system unit of the desktop personal computer can lie flat on the desk or table. In desktop personal computer, is usually placed on the system unit. Below is a listing of helpful suggestions for what to look for and ask when purchasing a home or business computer new or used. 

NEW vs. USED

              Today there are two options to buy a computer, a new or used computer. Used computer are some time out of date, but you can buy it with very low price as compare to new computer, but I think branded or used computer are much stable than a new computer. Before purchasing a computer consider if you should purchase a new or used computer. Many individuals sell computer before they are out of date allow you to purchase a relatively decent computer. Before purchasing a new computer from a computer manufacture look at what is available and review the below precautions when purchasing a computer.

More Considerations

               When purchasing a computer it is likely that you will have a general idea of what you may like in the computer or how you would like to configure the computer. Below is a listing of the various components likely to be found in a computer and recommendations and tips when considering any of the following components.

Device	Short recommendation
Case	Generally there are two types of Computer Case are available in market, for Example Tower case and desktop case. The system unit of the desktop personal computer can lie flat on the desk or table and the monitor is usually placed on the system unit. An other model of the computer case is known tower. The system unit of the tower PC is vertically placed on the desk or table. But purchasing a computer case is generally not an important consideration when you are going to buy a Computer. However it depends upon the user needs and choice to building a computer case may find it important to consider the following considerations.
CD Media	CD-R -always will be an important consideration to think about when purchasing a new computer or used computer. A CD-writer or recorder (or simply CD-R drive) is used to write data on CD-R disks. Usually, a CD-writer can read information from CD as well as write information on CD, The locally produced CD-R disks are created with CD writer. The speed of these drives is up to 52X or more. CD-RW - You must have a CD-RW drive to write date on the CD-RW. These drives have read and write speed is up to 52X or more but the re-write speed is 10X or more. The CD-RW drive is advanced and more expensive than CD-R drive. It can write data on both CD-R and CD-RW discs and also read data from them DVD - DVD stands for Digital Video Disk Versatile Disc. DVD-ROM is an extremely high capacity optical disc with storage capacity from 4.7 GB to 17 GB.
Hard Drive	Hard drives have and always will be an important consideration to think about when purchasing a new computer or used computer. Hard disk is most commonly used storage device in personal computers and laptop computers. Most application programs and operation systems require hard disk for installation and operation.
Processor	The computer processor is and will always be an important consideration when purchasing a computer. Processor is considered the brain of the computer. The CPU fetches instructions of program from main memory and executes them one by one. The speed of the CPU is measured in Mega Hertz or Giga Hertz and speed from 500 MHz to 3.4 GHz, it depends upon a user needs, that is why purchasing a processor is an important consideration when building or buying a computer. There are several considerations and additional information about what to ask and look for when purchasing a processor directly or already installed into a computer.