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Computer Science

We prepare these MCQS with the help of over technical and subject expert team. Over team put their great efforts to explain each and every Question in detail.
Here is the list of COMPUTER SCIENCE and its all different categories MCQS for the preparation of CSS, PMS, PPSC, FPSC, Kppsc, SPSC, NTS, OTS, PTS , JTS and all other Government/Private exams. We cover all the latest and past papers topic of COMPUTER SCIENCE which you want and prepare yourself for all the exam MCQS.




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COMPUTER SCIENCE MCQS
IT CURRENT AFFAIRS BASIC IT/COMPUTER FUNDAMENTALS/MIXED COMPUTER SCIENCE MCQS
NETWORKING MANAGEMENT INFORMATION SYSTEM
COMPUTER HISTORY AND GENERATIONS MICROSOFT WORD MCQS
MICROSOFT EXCEL MCQS MICROSOFT POWER POINT MCQS

Group of instructions that directs a computer is called

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A. Storage
B. Logic
C. Memory
D. Program
E. All of these

Answer & Solution
Option: D
Explanation :A computer program is a list of instructions that tell a computer what to do. Everything a computer does is done by using a computer program. A computer program is written in a programming language.
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    Which acronym recognizes the fact that “computer errors” can usually be traced to incorrect input data or unreliable programs

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    A. FIFO
    B. GIGO
    C. LIFO
    D. DASD
    E. ROM

    Answer & Solution
    Option: B
    Explanation :GIGO Stands for “Garbage In, Garbage Out.” GIGO is a computer science acronym that implies bad input will result in bad output.
    GIGO is a universal computer science concept, but it only applies to programs that process invalid data. Good programming practice dictates that functions should check for valid input before processing it. A well-written program will avoid producing garbage by not accepting it in the first place. Requiring valid input also helps programs avoid errors that can cause crashes and other erratic behavior.
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      Pick up the correct statement

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      A. Minicomputers cannot use high-speed buffer storage components and thus always slower than mainframe models.
      B. Mainframes may have multiprocessor components that permit several tasks to be processed at the same instant in time
      C. Super-computers are usually designed to process accounting applications
      D. Most mainframes are 48-bit machines
      E. Thousands of super computers are currently being built

      Answer & Solution
      Option: B
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        Control Unit of a digital computer is often called the

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        A. Clock
        B. Nerve center
        C. ICs
        D. All of the above




        Answer & Solution
        Option: B
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          Choose the incorrect statement about micro computers, mini-computers, etc.

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          A. Most micros use rigid disk storage devices rather than floppy disk drives.
          B. A minicomputer can have more processing capability than a mainframe model
          C. A microcomputer chip performs the arithmetic-logic and control functions of a microcomputer
          D. ROM chips may be used in micros to permanently store program instruction

          Answer & Solution
          Option: A
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            What happen when data is entered into a memory location?

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            A. It will add to the content of the location
            B. It will change the address of the memory location
            C. It will erase the previous content
            D. It will not be fruitful if there is already some data at that location

            Answer & Solution
            Option: C
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              Main storage is also called

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              A. Accumulator
              B. Control unit
              C. Register unit
              D. Memory

              Answer & Solution
              Option: D
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                Hard disks are formatted in the same manner as floppy disks. However before a hard disk can be formatted it must first be?

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                A. write protected
                B. sectioned
                C. deleted
                D. partitioned

                Answer & Solution
                Option: D
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                  A collection of eight bits is called

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                  A. Byte
                  B. Word
                  C. Bit
                  D. Kilo Byte (KB)

                  Answer & Solution
                  Option: A
                  Explanation :A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1. Although computers usually provide instructions that can test and manipulate bits, they generally are designed to store data and execute instructions in bit multiples called bytes. In most computer systems, there are eight bits in a byte. The value of a bit is usually stored as either above or below a designated level of electrical charge in a single capacitor within a memory device.
                  Half a byte (four bits) is called a nibble. In some systems, the term octet is used for an eight-bit unit instead of byte. In many systems, four eight-bit bytes or octets form a 32-bit word. In such systems, instruction lengths are sometimes expressed as full-word (32 bits in length) or half-word (16 bits in length).
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