HSC Science (Computer Science)
Academic Year: 2024-2025
Date & Time: 6th March 2025, 11:00 am
Duration: 3h
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- All questions are compulsory.
- Figures to the right indicate full marks.
- Draw a neat and labelled diagram wherever necessary.
- Use of any type of calculator is not allowed.
- Comments are must in assembly language programs.
The arithmetic instruction which affect only carry flag is ______.
DAD
ADD
ADC
SBB
Chapter:
______ is not a vector interrupt.
TRAP
INTR
RST 7.5
RST 6.5
Chapter:
The 8051 size of internal ROM is ______.
4K bytes
2K bytes
8K bytes
16K bytes
Chapter:
The conversation from digital to analog and vice versa is done by ______.
Repeater
Hub
Router
MODEM
Chapter:
Give at least two examples of 8-bits Microprocessor.
Chapter:
Give at least two examples of 16-bits Microprocessor.
Chapter:
Explain the direct addressing mode of Intel 8085 with suitable examples.
Chapter:
Explain the immediate addressing mode of 8085 Micro-processor with examples.
Chapter:
Explain in brief the following access method:
Contention
Chapter:
Explain in brief the following access method:
Token Passing
Chapter:
Explain the function of ALU with a simple block diagram.
Chapter:
Explain the following instruction of 8085 Micro-processor:
LDAX D
Chapter:
Explain the following instruction of 8085 MPU:
XCHG
Chapter:
Explain the following instruction of 8085 Micro-processor:
RAR (Consider cy = 0)
Chapter:
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Explain the following register in 8085 Micro-processor:
Decoder
Chapter:
Explain the following register in 8085 Micro-processor:
General purpose register
Chapter:
Explain the advantage of the following feature of the Pentium Processor:
Dual pipe lining
Chapter:
Explain the following feature of Pentium Microprocessor:
On-chip cache
Chapter:
Explain the following feature of Pentium Microprocessor:
Branch Prediction
Chapter:
Explain the following feature of Pentium Microprocessor:
64-bit data bus
Chapter:
Explain the function of the following pin of 8085:
`"IO|" bar"M"`
Chapter:
Explain the function of the following pin of 8085:
HLDA
Chapter:
Explain the function of the following pin of 8085 Micro-processor:
READY
Chapter:
State any two of Micro-controller advantages over Micro-processor.
Chapter:
Explain memory register map of 8051 Micro-controller with diagram.
Chapter:
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Accumulator contains data ABH and register D contains the data 09H. What will be the content of the accumulator after execution of the following instruction:
XRA D
Chapter:
Accumulator contains data ABH and register D contains the data 09H. What will be the content of the accumulator after execution of the following instruction:
ADD D
Chapter:
Accumulator contains data ABH and register D contains the data 09H. What will be the content of the accumulator after execution of the following instruction:
ORI 55H
Chapter:
Explain any four flags of 8085, giving example.
Chapter:
Explain in short six characteritics of Transmission Media.
Chapter:
Explain in short six characteritics of Transmission Media.
Chapter:
Explain in short six characteritics of Transmission Media.
Chapter:
Explain in short six characteritics of Transmission Media.
Chapter:
A block of data stored in memory location from 2600H to 2609H. Write Assembly Language Program to transfer to data block in reverse order starting from memory location 2700H.
Chapter:
A block of data stored in memory location 3100H and length of the block is stored at 3000H. Write Assembly Language Program to count the data BBH appeared in the given block. Store the count of the memory location at 3100H.
Chapter:
Write an Assembly Language Program to find out 2’s complements of five numbers which are stored in memory locations starting from 4100H and stored the result in memory location starting from 4200H.
Chapter:
A 8-bit number stored in memory location BABA H. Write an Assembly Language Program to add each bit of the given 8-bit number and store the resect at memory location.
Chapter:
Write an Assembly Language Program to divide Hexa decimal number stored in the memory location 5000H by Hexa decimal number stored in memory location 5001H. Store the quotient at 5002H and remainder at 5003H.
Chapter:
Write an Assembly Language Program to generate the Fibonacci number upto 5 terms.(Fibonacci terms – 00H, 01H, 01Н, 02Н, 03H)
Chapter:
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