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Q & A - Computer Science

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  • Microphone is a ________________ Microphone is a ________________ (a)    Output device                                               (b) Storage device        (c) Input device (d) Processing device    ...
  • A table that lists the required inputs for a given change of state is _____ A table that lists the required inputs for a given change of state is _____ (a)    Characteristic table                                     (b) Excitation table      (c)...
  • When the carry into the sign bit and the carry out of the sign bit are applied to ________ When the carry into the sign bit and the carry out of the sign bit are applied to ____________________gate, an overflow can be detected. (a)    EX-NOR                (b)...
  • The digital circuit that generates the arithmetic sum of two binary.... The digital circuit that generates the arithmetic sum of two binary numbers of any length is _______________________ (a)    Binary Adder       (b) Full Adder          ...
  • The ______________________ operation sets to 1 the bits in one register where there are co The ______________________ operation sets to 1 the bits in one register where there are corresponding 1’s in the second register. (a)    Selective Complement            ...
  • RISC stands for _______________ RISC stands for _______________ (a)    Reduced Instruction Set Computer (b)    Risk Instruction Set Computer (c)     Reduced Instruction Set Carry (d)    Reset Instru...
  • If F= AB’ + C’D then F’= ------ If F= AB’ + C’D then F’= ------ (a)    (A+B’)(C’+D)       (b) (A’B)+(CD’)                                                    (c) (AB’)(CD’) (d) (A’+B)(C+D’)          (e...
  • BUN instruction stands for------ BUN instruction stands for------ (a)    Branch Conditionally (b)    Branch Unconditionally (c)     Boot unconditionally (d)    Begin Unconditionally (e)     Branch a...
  • ISZ is an example of __________________ instructions ISZ is an example of __________________ instructions (a)    I/O                                                                  (b) Memory Reference (c) Register refere...
  • DMA stands for__________________ DMA stands for__________________ (a)    Direct Memory Address (b)    Direct Main Address (c)     Direct Memory Access (d)    Direct Main Access (e)     Device Memory Access.
  • The program is executed from main memory until it attempts to reference a page that is.. The program is executed from main memory until it attempts to reference a page that is still in auxiliary memory, this condition is called as ____________ (a)    Page Fo...
  • A Set of Physical Addresses is called ________________ A Set of Physical Addresses is called ________________ (a)    Memory space                                             (b) Disk space               (c) Address space ...
  • The performance of the cache memory is measured in terms of a quantity called ____________ The performance of the cache memory is measured in terms of a quantity called _________________ (a)    Initialization Ratio                                      (b) Addr...
  • The operation DR ← M[AR] is known as __________________ The operation DR ← M[AR] is known as __________________ (a)    Arithmetic Operation                                  (b) Shift Operation (c)    Memory Write            ...
  • The (r-1)’s complement of 345 in octal number system is The (r-1)’s complement of 345 in octal number system is          (a)    342                         (b) 234                           (c) 243                            ...
  • MUX consists of how many number of outputs? MUX consists of how many number of outputs? (a)    Only one                                                        (b) No output (c)    Depends on the input            ...
  • What does ‘T’ stands in T-flip flop What does ‘T’ stands in T-flip flop (a)    Top                        (b) Type                         (c) Temporary              (d) Tiny                          (e) Toggle.
  • Gray Code is also called as ___________________ Gray Code is also called as ___________________ (a)    Decimal Code                                              (b) Binary Code (c)    2421 Code                       ...
  • The function of the ________________ is to store programs and data... The function of the ________________ is to store programs and data. (a)    CU (Control Unit)                                        (b) MU (Memory Unit) (c)    ALU (Ari...
  • The equivalent decimal number of hexadecimal C4 is obtained from one of the following The equivalent decimal number of hexadecimal C4 is obtained from one of the following               (a)    C+4                                                           ...
  • The terms in the notation mre The terms in the notation mre (a)    Mantissa, Round and Exponent (b)    Mantissa, Radix and Exponent (c)     Mantissa, Range and Exponent (d)    Mantissa, Radix and ...
  • According to Demorgan’s Law (A·B)' = __________ According to Demorgan’s Law (A·B)' = __________ (a)    A’B’                       (b) AB                            (c) A' + B'                       (d) A’-B’          ...
  • According to Boolean algebra A+1 = ______________  According to Boolean algebra A+1 = ______________ (a)    A                             (b) 0                                (c) 1                                (d) A’ ...
  • Control unit is also called as ______________ Control unit is also called as ______________ (a)    Supervisor             (b) Monitor                    (c) Manager (d) Controller (e) All of the above.
  • Instruction register stores_____________ Instruction register stores_____________ (a)    Address of the current instruction            (b) Address of the next instruction (c)    Instruction which is currentl...
  • The decimal number equivalent to 1100011 will be The decimal number equivalent to 1100011 will be (a)    98                           (b) 100                           (c) 96                              (d) 99        ...
  • Programs must reside in the main memory during _______________ Programs must reside in the main memory during _______________ (a)    Deletion                 (b) Execution                (c) Printing                     (d) Reading ...
  • MUTIPLEXER consists of how many number of outputs? MUTIPLEXER consists of how many number of outputs? (a)    Only one                                                        (b) No output                (c) Depends on the...
  • is a symbol for ___________ gate? is a symbol for ___________ gate? (a)    NOR                       (b) XOR                         (c) XNOR                       (d) NAND                      (e) OR.
  • Unicode is a ___________________ Unicode is a ___________________ (a)    Uniform Code                                              (b) Union Code             (c) Universal Condition (d) Universal Code ...
  • Formula for r’s complement is ___________  Formula for r’s complement is ___________ (a)    ((rn–1)–N)              (b) (rn–N)                        (c) (rn–1)N                      (d) (rn)2–N                 ...
  • Which one of the fo The function of the ________________ is to store programs and data. The function of the ________________ is to store programs and data.(a)    CU (Control Unit)                                        (b) Secondary Memory                   ...
  • Only Push and Pop operations are applicable to which one of the following.. Only Push and Pop operations are applicable to which one of the following. (a) Queue                       (b) Tree                          (c) Stack                   ...
  • Specify the expansion for ISZ. Invalid to skip if Zero  Specify the expansion for ISZ. (a) Invalid to skip if Zero                                    (b) Increment and set if Zero                             (c) Increment...
  • Identify the input device in which finger shows the cursor movement... Identify the input device in which finger shows the cursor movement. (a) Mouse                      (b) Scanner                    (c) Glide pad                 (d) Micr...
  • Specify the Complement for the equation, F=AB+C’D’+B’D.`,..  Specify the Complement for the equation, F=AB+C’D’+B’D.` (a) (A+B’)(C’+D)(B+D’)                                      (b) (A’+B’)(C+D)(B+D’)                             ...
  • Identify the equation for the sum in the full adder. Identify the equation for the sum in the full adder. (a) A B C                                                        (b) A B                       (c) A B’ (d) A’ B’ C...
  • BCD code is also called as _________. BCD code is also called as _________. (a) EBCDIC                  (b) 2421                         (c) Excess -3                  (d) Excess-3 gray         (e) 8421.
  • Identify the law for the given Boolean function, x(y+z)=xy+xz. Identify the law for the given Boolean function, x(y+z)=xy+xz. (a) Commutative law                                          (b) Associative law      (c) Demorgan’s Law ...
  • Transistors belong to ______ generation of the computer evolution. Transistors belong to ______ generation of the computer evolution. (a) First                           (b) Second                     (c) Third                         (...
  • Which of the following is false related to the logic gates? Which of the following is false related to the logic gates? (a) NOT=BUFFER                                               (b) NOR=OR+NOT (c) NAND=AND+NOT                ...
  • SC←0, specifies_____________. SC←0, specifies_____________. (a) Seconds is assigned with 0                            (b) Signal counter is assigned with 0 (c) Sequence counter is assigned with 0   ...
  • Which one of the following is correct? Which one of the following is correct? (a)    Sequential circuit is an interconnection of only logic gates (b)    Sequential circuit is an interconnection of only flip ...
  • Name the binary code where there is only one bit of difference between two consecutive nu  Name the binary code where there is only one bit of difference between two consecutive numbers. (a) Excess-3 code                                                 (b) EB...
  • Stack Pointer stores _________________. Stack Pointer stores _________________. (a) Address of top item                                                                                (b) Operations (c) Addres...
  • 1 GB is ___________bytes. 1 GB is ___________bytes. (a) 1 073 741 826                                                (b) 1 073 741 828        (c) 1 073 741 821 (d) 1 073 741 822                 ...
  • demonstrates ________. demonstrates ________. (a) Glide Pad                 (b) Joy Stick                  (c) Bar Code Reader (d) Mouse                      (e) Wand Reader.
  • A page frame is also called as ________________. A page frame is also called as ________________. (a) Page                          (b) Block                        (c) Disk                           (d) Hit          ...
  • A _________is supplied by one unit to indicate the other unit when the transfer has to occ A _________is supplied by one unit to indicate the other unit when the transfer has to occur. (a) Time slice                (b) Access right             (c) Logic gate  ...
  • The page replacement algorithm where there is a replacement of a page ,which has not been The page replacement algorithm where there is a replacement of a page ,which has not been used more frequently is ______________. (a) MFU                         (b) LRU...