Sunday, July 25, 2010

RAM (Random Access Memory)

RAM - Random Access Memory

Wait for this.. Under Construction.......

HARD DISK DRIVE

HARD DISK DRIVE CONNECTION WITH MOTHERBOARD

       -> Here we are going to see, how to connect the HDD with mother board.. There are two types of Ports available in Motherboard to connect the HDD. They are,
      1. IDE Port
      2. SATA Port
  •  IDE(Integrated Device Electronics) Port: 
              -> In old type of Hard disk we use IDE port only, this port has 40 pins in 2 rows.. We have two IDE ports in Mother board.
              -> We can connect the HDD, CD-Drive, and DVD-Drive in IDE port.



            
              -> To connect the HDD with IDE port, we need the PATA cable.
              -> Here, we have a power cable with 4 holes to connect with HDD.
  • PATA(Parallel Advanced Technology Adaptor) Cable: 
              -> This cable also has the 40 holes to connect with IDE port.. This cable is also known as "IDE Cable".

              
              -> Using a single PATA cable, we can connect the 2 devices with mother board.

  • SATA(Serial Advanced Technology Adaptor) Port:
              -> It has the 7 pins.. And it looks like the letter 'L'.
              -> Here, we need a SATA Cable to connect the SATA HDD with Motherboard.



  • SATA Cable:
              -> In SATA Cable, we have a 7 pins on both side..
              -> The 7 pins are used to transfer the data, so we need to connect them in HDD and Mother Board.

              -> Here, we need the separate  power connector.. So, we need to connect it with our ordinary 4 pins SMPS power cable.
              -> This SATA power cable has the 15 pins. 

 
(SATA Power Connector)



(Demo of PATA & SATA Connection)

PROCESSORS

PROCESSORS

There are 2 types of Processors available.. They are,
  1. Slot Type
  2. Socket Type

Slot Type : -

        - Here we want to fix the Processor in the Slot. Like below,





Socket Type : -

        - Here we have 2 types of Processors. They are, 
      1. PGA (Pin Grid Array)
      2. LGA (Land Grid Array) 
  •  PGA
                -> In this type of Processors, we have a pins under the Processor.. And holes in Processor's board.




  • LGA

               -> It is opposite to the PGA type.. We have holes in Processor, pins in the board.. Now, we mostly use this type of processors only.




Saturday, July 24, 2010

SMPS (Switch Mode Power Supply)

               SMPS is the main part of the computer.. From there only your CPU and other components get the correct power supply.. Normally, in our home we get the AC(Alternative Current) power supply.. But its not a good for mother board components.. So, SMPS convert the AC to DC(Direct Current)..

 

              First we see, how to connect the SMPS with mother board.. Because all CPU components are connected with mother board only. According to the power connector, we have the following 5 types of mother boards. they are,
             * AT(Advanced Technology) 
        • It has a 12 pin in the mother board to connect
        • It is available in White Color
                * ATX(Extended Advanced Technology)
        • It has the 20 pins in 2 rows
        • White Color

               
                      * ATXP4(Extended Advanced Technology Pentium 4)
    • It has the 24 pins in 2 rows
    • White Color

               * ATXP4HT(Extended Advanced Technology Pentium Hyper Threading)
          • It has the 28 pins in 2 rows