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Thursday 12 November 2020

DCA : UNIT -1 INFORMATION TECHNOLOGY (Chapter 2- Computer Organization)

 


                                                                       UNIT -1

                                                  INFORMATION TECHNOLOGY

                                                                     CHAPTER -2

                                                      COMPUTER ORGANIZATION







      1. What is motherboard?

          Mother board alternatively is known as the main board, system board, planar board, logic board, base board or main circuit board. The motherboard is a printed circuit board. It allocates power and allows communication to and between the CPU,RAM, and all other computer HARDWARE components.

2. What is register?

    Registers  are temporary storage locations inside the CPU. The data and instruction fetched from the memory is to be stored in registers for the ongoing process.

3. What is the function of input unit?

     1. Accept data and instruction from outside world.

     2. Convert human readable from of data to machine readable (digital) form .

      3. Supplies digital form of data to processor(CPU) for further processing.

4.  What is the function of output function?

  • Accept data after processing.
  • Convert these data into human readable form.
  • Gives information to outside in human readable form.   
5. What are the 5 basic functions performed by a computer system?

    1. Accepts data and instructions through input devices.

    2. Stores data and instructions

    3. Process data as instructed by the user.

    4. Controls all operations inside a computer.

     5. Gives result through output devices.

6. What is bus?

      Alternatively known as an address bus, data bus, or local bus, a bus is a connection between components or devices connected to a computer. For example, a bus carries data between a CPU and the system memory via the motherboard.

7. Mention the importance of expansion slots in motherboard

     It provides an installation point for a hardware expansion card to be connected. Various expansion slots are sound card slot, Video card ,Network card , Modem , graphic card etc. For example, if you wanted to install a new video card in the computer, you'd purchase a video expansion card and install that card into the compatible expansion slot.

                                        Long Answer type Questions.

1. Draw a Block diagram and Explain the functions of various units.(important)

(Ref. Text book)




                            Objective type Questions and Answers


    
1. Parallel port are used to connect --------------- device.

   Ans.  Peripheral device

2. CPU stands for -----------------

 Ans. Central Processing Unit

3. -------------------- is an example of microprocessor.

  Ans.  Intel Core i7

      Other examples Intel pentium 4 , Intel 8085, Intel 8086 AMD etc.