Exam Details
| Subject | Computer Organisation & Assembly Language Programming | |
| Paper | ||
| Exam / Course | Post Graduate Diploma in Computer Application (PGDCA)/ Advance Diploma inComputer Applications (ADCA) / Masters in Computer Applications (MCA) | |
| Department | School of Computer and Information Sciences (SOCIS) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
IEEE floating point representation for single precision number uses the format as:
Sign bit bit) Biased exponent bits) Significant (23 bits)
In this representation a floating point number where 0 E 255 having any significant bits is equivalent to
± -127). Using this format represent the following decimal numbers:
0·375
7
Now using the representation perform the following operations
0·250 x 7
0·375 7
Simplify the following using Karnaugh's map:
F E 10, 13)
Write an assembly language program to find the maximum in a group of 10 numbers stored in memory. Store the result in AL register.
What is RAID? List three features of RAID level 3.
How is a main memory address mapped to a cache address Assume the main memory size of 1 K words.
1 cache block size =32 bits
No. of cache slots =16
Cache mapping 2 way set associative
Explain the use of PC, IR, AC, MBR registers of a computer System.
Consider Registers R1 and R2 containing
R1 10100000
R2 01101100
Perform the following microoperations using these registers
R1 R1 R2
Shift Left R1
R1 R1 XOR R2
Explain using a flowchart the steps of an instruction execution.
How many RAM chips of size 256 kx 1 bit are required to build 1 MB of memory?
Explain the various displacement addressing schemes with the help of an example each.
Calculate the physical address for the following register offset pairs
SS: SP 0l00h: 0020h
DS: BX 0200h: 0l00h
CS: IP 4200h 0123h
ES: SI =0300h 0245h
Explain the use of parity bit in error detection with the help of an example using odd parity scheme.
Compare the following:
CD-ROM and DVD-ROM
SRAM and DRAM
Memory mapped I/O and Isolated mapped I/O
Explain the following 8086 instructions:
XCHG
XLAT
What is a Multiplexer Give block diagram, truth table and logic diagram of a 4 x 1 multiplexer.
Explain any three techniques of identifying the device that has caused the interrupt.
Write a program in 8086 Assembly language for displaying the contents of CL register.
5. Explain the following with the help of an example or diagram for each:
T flip-flop
DMA
COM programs
The stack
LCD
Sign bit bit) Biased exponent bits) Significant (23 bits)
In this representation a floating point number where 0 E 255 having any significant bits is equivalent to
± -127). Using this format represent the following decimal numbers:
0·375
7
Now using the representation perform the following operations
0·250 x 7
0·375 7
Simplify the following using Karnaugh's map:
F E 10, 13)
Write an assembly language program to find the maximum in a group of 10 numbers stored in memory. Store the result in AL register.
What is RAID? List three features of RAID level 3.
How is a main memory address mapped to a cache address Assume the main memory size of 1 K words.
1 cache block size =32 bits
No. of cache slots =16
Cache mapping 2 way set associative
Explain the use of PC, IR, AC, MBR registers of a computer System.
Consider Registers R1 and R2 containing
R1 10100000
R2 01101100
Perform the following microoperations using these registers
R1 R1 R2
Shift Left R1
R1 R1 XOR R2
Explain using a flowchart the steps of an instruction execution.
How many RAM chips of size 256 kx 1 bit are required to build 1 MB of memory?
Explain the various displacement addressing schemes with the help of an example each.
Calculate the physical address for the following register offset pairs
SS: SP 0l00h: 0020h
DS: BX 0200h: 0l00h
CS: IP 4200h 0123h
ES: SI =0300h 0245h
Explain the use of parity bit in error detection with the help of an example using odd parity scheme.
Compare the following:
CD-ROM and DVD-ROM
SRAM and DRAM
Memory mapped I/O and Isolated mapped I/O
Explain the following 8086 instructions:
XCHG
XLAT
What is a Multiplexer Give block diagram, truth table and logic diagram of a 4 x 1 multiplexer.
Explain any three techniques of identifying the device that has caused the interrupt.
Write a program in 8086 Assembly language for displaying the contents of CL register.
5. Explain the following with the help of an example or diagram for each:
T flip-flop
DMA
COM programs
The stack
LCD
Other Question Papers
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