What need to know before buying a new PC?


When buying a computer, firstly look for a few things:


1. The shop where the buyer buys the customer's customer service. In this case, contacts can help.

2. There is much open hardware available in the market. Never buy them.

3. If you are not a computer expert, then at least buy Processor, Mainboard, RAM, HDD, ODD, Graphics Card, Casing from the same store. They will configure them correctly.

Now I will tell you about each of the different types of computers, and I will talk about what to look for when buying them.


The main thing about computers It does all the work on the computer. Basically, this is called a central processing unit. Intel and AMD (Advanced Micro Device) are among the most popular among processor manufacturers. Both are good, but the most popular and technology is ahead of Intel.

  1. Intel Core i7 Processor
  2. AMD Phenomenon

Since the processor is the most important, so be careful when buying it.

1. The processor's clock speed has to be noticed. The higher the clock speed, the processor's processing capacity will be as high.

2. It is necessary to know what the processor series is. As the series progresses, the speed will increase. Intel's early processors include Pentium Series. Later came successive, Celeron series, Core Series, I Series. In the Pentium series, P2 is better than P1 (Pentium 1), P3 better than P2, again P4 better than P3. That is, the speed of P2 with the same clock speed is higher. Again, in the same way, more than the speed of core series than the Pentium Series. Among core processors, Core 2 Quad> Core 2 Duo> Dual Core. Again in core i series processors, Core i7 extreme> Core i7> Core i5> Core i3

3. It has to be noted that the processor has several core and several threads. If the number of cores and threads is high, the speed will increase. So far six core cores of processors have been discovered.

4. Note the amount of FSB (Front Serial Bus). If the FSB is more then the speed will be higher. Although new processors do not use FSB. QPI is used instead.

5. Cache Memory, how much can be seen. There are types of the cache memory. The latest technology cache memory is L3 Cache

6. Keep in mind, whether Hyper-Threading Technology is available. This technology plays an important role in multitasking.

7. In the case of Intel Processor, keep in mind that Turbo Boost Technology exists. This technology increases the power of the processor when needed.

8. See if there is a GPU (Graphics Processing Unit). External Graphics Card is not needed if the processor has a GPU and uses a good motherboard. (Unless you play a lot of quality games on the computer or graphics designing or HD video editing etc.)

[The last three options are usually higher than the price of the processor. These are not required for general purpose.]

Mainboard or Motherboard:

This board contains all the components of the computer. Good brands for mainboard are Gigabyte, Intel, Foxcon, Asus etc. The mainboard must be supported by the processor. There are two types of ports in the mainboard, IDE, and S-ATA. However, the mainboard of the S-ATA port is currently seen. Almost all S-ATA ports have at least one IDE port in the mainboard. Using the IDE to S-ATA converter, the IDE device can be used on the mainboard of the S-ATA port. The main thing to note when buying a mainboard is:

1. The mainboards are processors supported.

2. Type of RAM The way RAM will be in the mainboard, it will be the kind of RAM to buy. The latest RAM type is DDR3.

3. How much is the USB port version The latest is the USB 3.0. [USB 3.0 port mainboard price slightly higher]

4. Currently, all the main boards have LAN Card (Local Area Network Card). Moreover, HD audio and HD video can be noticed. The value of Integrated Graphics is better.


This is the main output of the computer. There are good brands for monitors: Samsung, Philips, LG, Asus, HP, Fujitsu etc. Keep track of the following when buying a monitor:

LCD (Liquid Cristal Display) / LED (Light Emitting Diode) For Monitor:

1. Select the screen size according to your needs. Currently, there are many monitors built-in TV Tuner. At the same time, the computer monitor and TV will work. If you do not have a TV Tuner, you can buy a TV Tuner individually.

2. LCD monitors are both square and widescreen. You can choose according to your needs.

3. The difference between LCD and LED monitors is: LED Monitor is an advanced type of LCD monitor. On the LED monitor, better pictures can be seen. Moreover, the LED monitor seems to be comfortable.

4. Notice the contrast ratio. The more it is, the picture quality will be as good, that means the picture will sharpen.

5. Response time is better if less.

Random Access Memory (RAM):

RAM and computer speed increase. Being a good brand for RAM: Transcend, Twinmos etc. Keep these notes when buying RAM:

1. If a number of RAM increases, the computer speed will increase. That is, the speed of 2 GB of RAM is more than 1 GB of RAM.

2. If RAM is more than the frequency of RAM, the power of RAM will increase.

3. If the RAM type is improved, it will increase the speed of the computer. For example, the DDR3 RAM is much stronger than DDR2 RAM. But in the mainboard like a slab of RAM, the kind of RAM to buy.

Hard Disk Drive (HDD):

Computer information is stored in it. It also works as a computer's virtual RAM. Being a good brand, Samsung, Transcend etc. While buying it, note the following:

1. Generally, if you have hard disk storage capacity, you can store more information. There are 3 TB hard disks available from 160 GB on the market.

2. If the hard disk's RPM (Revolutions Per Minute) is higher, its data transfer rate will be high.

3. If the mainboard port is S-ATA then buy the hard disk S-ATA.

4. In the case of External Hard Disk, it is better to buy USB 3.0 hard disk if your mainboard is USB 3.0. Because, within a few years, USB 2.0 will be replaced by USB 3.0. Note: External Hard Disk can not be used as a permanent HDD, but it can be used as an internal HDD, external HDD.


Casing box for the mainboard, HDD, ODD. The brand is not so important for the casing. But the Casing of Mercury and Gigabyte is fine. When buying casing, notice the following:

1. The price of casing varies for the PSU (Power Supply Unit). If the PSU is more watt, then the PSU price increases. As a result, the price of casing increases. Select the PSU according to your type of work. For example, if you use a large screen monitor and power extracellular graphics card, then you will need a higher power supply.

Optical Disk Drive (ODD):

ODD is CD / DVD player / Writer. Good brand for ODD is Samsung, Asus, Lite-On etc. Note:

1. At present, the price difference between the CD player and the DVD player is very low. The CD player can not play the DVD, but the DVD player can play CD.

2. If you want, you can buy Combo Drive or DVD writer with hundreds of more money. Combo drive is the ODD that can write CD Play, DVD play, and CD. And with the DVD writer you can do CD play, DVD play, CD write, DVD write.

3. According to the port of mainboard, buy ODD. (Otherwise, use the converter)

4. If the speed of the ODD is faster then the data will be read from the CD / DVD and the data will be faster.

Graphics Card:

Good graphics card for games like graphics or graphics designing is highly needed. The good brand in the graphics card is Asus, Gigabyte, Sapphire etc. Please note the following for purchasing it.

1. You can get better graphics than V-RAM.

2. Just like normal RAM, better results can be found when the type of V-RAM is improved.

3. Also, the ability of graphics cards to change things, such as Clock rate, Memory Bus, etc.

4. If you are attracted to a particular game or work with certain software, then you will need to purchase certain chipset graphics cards according to the software requirements.

Key Board:

This is one of the most important two input devices in the keyboard computer. Good brand for the keyboard is A4Tech, Deluxe, Mercury etc. If you buy it, you will notice that the Bengali characters are there.


Another important input device is this. Its good brand is A4Tech, Mercury etc.

1. How many DPI (Dots Per Inch) will look. If the DPI is more then you can work with the mouse in a clear way.

2. Buy a mouse that has the advantage to catch.


Another computer on the output device. Buy it according to your addiction to the song. The 2: 1 speaker is a total of three speakers, one of which is big and the other two smaller. The bigger is the woofer and the small sub-woofer. You can buy External Sound Card if you have good addiction in the song. However, there are almost 5: 1 sound card built-in mainbones in the present. As a result, you can use the 5: 1 speaker. However, you can use 7: 2 speakers for a more advanced sound (7: 2 for the sound card). A good brand for speakers is Creative, Microlab, Logitech etc.


If you have any questions please comments below.

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