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OSI MODEL ; OPEN SYSTEM INTERCONNECTION MODEL.

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  1. developed by ISO .
  2. also called reference model
  3. OSI model is a conceptual model.
  4. it charcterize and standrize the data communication without regard of the diversity in structure and technology.
  5. the model is a product of the open system interconnect project at the international organization for statndrization (ISO).
  6. it explain the data communication with a layer approched through seven system.
  7. networkreader.wordpress.com
    1. developed by ISO .
    2. also called reference model
    3. OSI model is a conceptual model.
    4. it charcterize and standrize the data communication without regard of the diversity in structure and technology.
    5. the model is a product of the open system interconnect project at the international organization for statndrization (ISO).
    6. it explain the data communication with a layer approched through seven system.

     

 

Create a partition in linux operatin systems l

* To make multiple partition,open your terminal and go to root and type their

#fdisk (device name )

* to update the partition table

#partprobe ( device name )

* to create a physical volume from the previously created physical partition

#pv create ( partition 1) ( partition 2)

* to see physical volume deatils

# pvdisplay |less.download

What is a Motherboard- defination and parts of a motherboard.

A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices. The base of a motherboard consists of a very firm sheet of non-conductive material, typically some sort of rigid plastic. Thin layers of copper or aluminum foil, referred to as traces, are printed onto this sheet. These traces are very narrow and form the circuits between the various components. In addition to circuits, a motherboard contains a number of sockets and slots to connect the other components.1280px-Acer_E360_Socket_939_motherboard_by_Foxconn.svg-2