IGNOU MCS-012 Exam Most Questions FREE PDF files

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IGNOU MCS-012  Problem Solving and Programming  Impotent questions

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IGNOU MCS-012 Exam Most Questions

(1)How many RAM chips of the size 512K x 1 bit  are required to build 1MByte of memory.Show the address distribution for the scheme.

(2) Explain the most associative Mapping scheme for Cache in the Memory.

(3) Explain the features of RAID level 1 and  RAID level 5.

(4) Explain in the various for types of instructions used  in a typical computer system.

(6) Write a program to using 8086 assembly  language for multiplication of two 8 bit numbers. Also display the result.

(7) Explain the following 8086 in the microprocessor  with the help of an example.

(i) DAA

(ii) TEST

(8)Explain the concept of a best Virtual Memory in  the context of memory management.

 (9) Represent in the  binary number 1001011 in IEEE  754 floating point representation using 32 bit word length (24 bit mantissa and 8 bit biased exponent).

(10)Explain the following techniques for I/O operation :

(i) Programmed I/O

(ii) Interrupt driven I/O

(12) Explain the following terms with respect to  hard in the  disks.

(i) Access time

(ii) Bandwidth

(iii) Rotation speed

(13) Find the using  average latency of a disk system  whose rotation speed is 5000 RPM

(14)Write an the assembly language program using 8086 assembly language to find the length of a string. Make suitable assumptions.

(15) Explain the line following terms, giving an  example/ diagram, if needed

(i) Flip-flop

(ii) Register

(iii) Single precision floating point representation

(iv) Multiplexer

(v) Assembler

(vi) Int 21 h

(vii) Fetch cycle.

(16) Explain what is UNICODE. How is it different from ASCII ?

(17) What is virtual memory ? Draw a fixed block diagram for mapping a virtual address to a

physical address.

(18) Explain the programmed like I/O with the help of a flow chart.

(19) Explain the advantages to the and disadvantages of using Assembly language programming

(20) Simplify the following Boolean example function using Karnaugh map : F(A, B, C, D) = 1,(0, 2, 5, 7, 9, 10, 11, 12, 15) Also draw the logic circuit for the simplified expression.

(21) Draw the logic to diagram of a 2 x 4 decoder. Also, draw its truth table.

(22) The 8-bit  in the registers R1, R2, R3 and R4 initially have the following values :

Ri = 00001111

R2 = 11110000

R3 = 11001100

R4 = 10101010

Determine the 8-bit values in the registers after the execution of the following sequence of micro-operations :

(i) Ri 4- Ri 9 R2 Exclusive OR

(ii) R4 4— Ri — R3 Substract R3 from Ri

IGNOU MCS-012  Problem Solving and Programming  Impotent questions

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