# Computer/Programming arcitecture Sample Test,Sample questions

## Question: `#2?s complement of -13 = 11110011 Add the two numbers in their 2?s complement form including their sign bits and discard any carry out of the sign (leftmost) bit position. So the answer is 11101101 (-19). -6 11111010 -13 11110011 ---------------------- -19 11101101 #6. Which one of the following CPU registers holds the address of the instructions (instructions in the program stored in memory) to be executed next?IR (Instruction Register)`

2.MBR (Memory Buffer Register)

3.AC (Accumulator)

4.PC (Program Counter).

Posted Date:-2021-10-07 17:45:00

## Question: `.Information transfer from one register to another is designated in symbolic form by means of`

1.Control Function

2.Op Code

3.Registers

4.Replacement Operator

Posted Date:-2021-10-07 17:45:00

## Question: `A combinational circuit that converts binary information from n input lines to a maximum of unique output lines is`

1.Decoder

2.Encoder

4.Full-subtractor

Posted Date:-2021-10-07 17:45:00

## Question: `A full-adder is simply a connection of two half-adders joined by a`

1.AND gate

2.OR gate

3.NAND gate

4.NOR gate

Posted Date:-2021-10-07 17:45:00

## Question: `Boolean functions expressed as a --------- of minterms or ---------- of maxterms are said to be in a canonical form.`

1.Product Sum

2.Sum Product

3.Subtract Divide

4.Divide Subtract

Posted Date:-2021-10-07 17:45:00

## Question: `Consider the following logic function f(ABC). f(ABC) = ( A + B + C?) . (A + B?+ C?) Which of the following would be the result if the above logic function is to be simplified using k-maps?`

1.C? + A

2.C + C?A?

3.C.A?

4.C?.A

Posted Date:-2021-10-07 17:45:00

## Question: `Convert decimal value (888)10 to base-5.`

1.(444)5

2.(12023)5

3.(131313)5

4.(12021)5

Posted Date:-2021-10-07 17:45:00

## Question: `ftware Programming 2015 examinations :`

1.Operational registers

2.Memory registers

3.Storage registers

4.Binary registers

Posted Date:-2021-10-07 17:45:00

## Question: `Given the characteristic table of a JK flip-flop find the missing output value. J K Q(t+1) 0 0 Q(t) 0 1 0 #1 0 1 #1 1 ---`

1.Q(t)

2.Q?(t+1)

3.1

4.Q?(t)

Posted Date:-2021-10-07 17:45:00

## Question: `he bulk of the binary information in a digital computer is stored in memory but all computations are done in`

1.Timing Control

2.Memory Registers

3.Processor Registers

4.Program Control

Posted Date:-2021-10-07 17:45:00

## Question: `he CPU nearly delays its operation for one memory cycle to allow direct memory I/O transfer. This process is called`

1.Burst transfer

2.Cycle waiting

3.Cycle stealing

4.Cycle interrupting

Posted Date:-2021-10-07 17:45:00

## Question: `In which type of flip-flop the indeterminate condition of the SR flip-flop (when S=R=1) is eliminated?`

1.Edge-triggered flip-flop

2.JK flip-flop

3.D flip-flop

4.T flip-flop

Posted Date:-2021-10-07 17:45:00

## Question: `System Software usually includes a program called a _______ which helps the programmer to find errors in a program.`

1.Write Buffer

3.Debugger

4.Both (opt1) and (opt3) above

Posted Date:-2021-10-07 17:45:00

## Question: `Techniques that automatically move program and data blocks into the physical main memory when they are required for execution are called`

1.Associative-Mapping techniques

2.Main Memory techniques

3.Virtual Memory techniques

4.Cache Memory techniques

Posted Date:-2021-10-07 17:45:00

## Question: `The correspondence between the main memory blocks and those in the cache is specified by`

1.Mapping function

2.Replacement algorithm

3.Hit rate

4.Miss penalty

Posted Date:-2021-10-07 17:45:00

## Question: `The simplest way to determine cache locations in which to store memory blocks is the`

1.Associative Mapping technique

2.Direct Mapping technique

3.Set-Associative Mapping technique

4.Indirect Mapping technique

Posted Date:-2021-10-07 17:45:00

## Question: `The sum of -6 and -13 using 2?s complement addition is`

1.11100011

2.11110011

3.11001100

4.11101101

Posted Date:-2021-10-07 17:45:00

## Question: `To convert octal code to binary code which of the following digital functions should be used?`

1.Decoder

2.Encoder

3.Multiplexer

4.Demultiplexer

Posted Date:-2021-10-07 17:45:00

## Question: `To convert octal code to binary code which of the following digital functions should be used?`

1.Decoder

2.Encoder

3.Multiplexer

4.Demultiplexer

Posted Date:-2021-10-07 17:45:00

## Question: `What are the building blocks of combinational circuits?`

1.Flip-flops

2.Logic gates

3.Latches

4.Registers

Posted Date:-2021-10-07 17:45:00

## Question: `What are the major components of a CPU?`

1.Control Unit Register Set Arithmetic Logic Unit

2.Control Unit Memory Unit Arithmetic Logic Unit

3.Memory Unit Arithmetic Logic Unit Auxiliary Memory

4.Register Set Control Unit Memory Unit

Posted Date:-2021-10-07 17:45:00

## Question: `What does T stands for in T flip-flop?`

1.Top

2.Type

3.Toggle

4.Tickle

Posted Date:-2021-10-07 17:45:00

## Question: `What interface is used to connect the processor to I/O devices that require transmission of data one bit at a time?`

1.Parallel

2.Serial

3.Output

4.Input

Posted Date:-2021-10-07 17:45:00

## Question: `What is a parity bit?It is the last bit in a byte`

1.It is used to indicate uppercase letters

2.It is used to detect errors

3.It is the first bit in a byte

4.It is the last bit in a byte

Posted Date:-2021-10-07 17:45:00

## Question: `What is an optical storage?`

1.Has faster access time than disk storage

2.Smaller capacity than CD-ROM

3.Greater capacity than DAT storage

4.Smaller capacity than DAT storage

Posted Date:-2021-10-07 17:45:00

## Question: `What is Q when S = 1 and R = 1 for SR flip-flop?`

1.No Change

2.Clear to 0

3.Set to 1

4.Complement of previous output

Posted Date:-2021-10-07 17:45:00

## Question: `What is the minimum number of bits required to store the Hexadecimal number FF?`

1.2

2.4

3.8

4.16

Posted Date:-2021-10-07 17:45:00

## Question: `What is the name of device that is allowed to initiate data transfer on the bus?`

1.Bus Master

2.Bus Arbitration

3.Bus Cycle

4.Bus Request

Posted Date:-2021-10-07 17:45:00

## Question: `What is the purpose of RAID system?`

1.It increases the processor speed

2.It increases the disk storage capacity

3.It increases the disk storage capacity and availability

4.It increases operating system efficiency

Posted Date:-2021-10-07 17:45:00

## Question: `What is the purpose of Stack Pointer (SP) register?`

1.It is used for accessing strings

2.It is used for accessing memory

3.It is used for accessing stack

4.It is used for accessing data segment

Posted Date:-2021-10-07 17:45:00

## Question: `What is the purpose of the floating point unit(FPU)?`

1.Makes integer arithmetic faster

2.Makes pipelining efficient

3.Increases RAM capacity

4.Makes some arithmetic calculations faster

Posted Date:-2021-10-07 17:45:00

## Question: `What is the word size of a 8086 processor? #64. What is the word size of a 8086 processor?`

1.8 bits

2.16 bits

3.32 bits

4.64 bits

Posted Date:-2021-10-07 17:45:00

## Question: `Which of the following is not involved in memory write operation?`

1.MAR

2.PC

3.IR

4.Data Bus.

Posted Date:-2021-10-07 17:45:00

## Question: `Which of the following is responsible for coordinating various operations using timing signals?`

1.Arithmetic-logic unit

2.Control unit

3.Memory unit

4.Input unit

Posted Date:-2021-10-07 17:45:00

## Question: `Which of the following modes are used to handle data transfer to and from peripherals?`

1.Programmed I/OInterrupted-initiated

2.I/ODirect memory accessProgrammed

3.I/O Interrupted-initiated

4.I/O Direct memory access

Posted Date:-2021-10-07 17:45:00

## Question: `Which of the following statements is wrong`

1.Combinational circuits has memory

2.Sequential circuits has memory

3.Sequential circuits is a function of time

4.Combinational circuits does not require feed back paths

Posted Date:-2021-10-07 17:45:00

## Question: `ystem Software usually includes a program called a -------- which helps the programmer find errors in a program.`

1.Write Buffer

3.Debugger

4.Both (opt1) and (opt3) above

Posted Date:-2021-10-07 17:45:00

## More MCQS

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