HSC Science (Computer Science)
Academic Year: 2021-2022
Date & Time: 25th March 2022, 10:30 am
Duration: 3h15m
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- All questions are compulsory.
- Figures to the right indicate full marks.
- Draw neat diagram wherever necessary.
- Use of any type of calculator is not allowed.
- Comments are must in assembly language program.
8085 microprocessor consist of ______ general purpose registers.
4
6
8
16
Chapter:
______ is not an example of logical operation of 8085 Microprocessor.
Rotate
Complement
Increment
Compare
Chapter:
Bandwidth of telephone line is ______.
3 to 4 KHz
30 to 40 KHz
10 to 100 KHz
50 to 80 KHz
Chapter:
Write a function of the following functional unit of 8085 Microprocessor:
Instruction Decoder
Chapter:
Explain the following register of 8085 Microprocessor:
Temporary Register
Chapter:
Explain the programming model for 32-bit version of x-86 family with suitable diagram.
Chapter:
Differentiate between Micro-controller and a Micro-processor.
Chapter:
Explain the function of the following pin of 8085:
SID
Chapter:
Explain the functions of the following pin of 8085 Microprocessor:
HOLD
Chapter:
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Explain the function of the following pin of 8085:
`"IO|" bar"M"`
Chapter:
Explain flag regiter’s bit pattern by giving an example.
Chapter:
Explain any four characteristics of Co-axial Cable.
Chapter:
Explain the immediate addressing mode of 8085 Micro-processor with examples.
Chapter:
Explain the following addressing mode of 8085 Microprocessor:
Register Indirect Addressing
Chapter:
Explain the following addressing mode of 8085 Microprocessor:
Direct Addressing
Chapter:
The Accumulator contains the data 76H and the register L contains the data A6H. What will be the contents of accumulator in hex after, execution of each of the following instruction independently:
- ORA L
- ANA L
- RRC
Chapter:
Flag Register contains data D9H. Interpret its meaning.
Chapter:
Write the addressing mode of the following instruction:
RAL
Chapter:
Write the addressing mode of the following instruction:
STA C500 H
Chapter:
Write the addressing mode of the following instruction:
ADD C
Chapter:
Write the addressing mode of the following instruction:
MVI B, 55 H
Chapter:
Write the addressing mode of the following instruction:
MOV M, A
Chapter:
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Write the addressing mode of the following instruction:
INR A
Chapter:
State any two of Micro-controller advantages over Micro-processor.
Chapter:
Explain the following device:
Repeater
Chapter: [5] Networking Technology
Explain the following device:
Router
Chapter: [5] Networking Technology
A block of data is stored in memory location from C101H to C10AH. Write an Assembly Language Program to transfer the block in reverse order to memory location C200H and onward.
Chapter:
Write an Assembly Language Program to find the product of two numbers stored in memory location C005H and C006H. Store the result in C000H and C001H.
Chapter:
Write an Assembly Language Program to add two BCD number stored at location 2500H and 2501H. Place the BCD result in location 2502H and onward starting with LSB.
Chapter:
Write a subroutine to fill the memory location 2501H to 25FF H with Hex number 01H to FFH.
Chapter:
A Hex number is stored at location 2100H. Write an Assembly Language Program to interchange its digit, the new number is to be stored in 2105H. Add original number with new number and store the result at location 2105H.
Chapter:
Write an ALP to count the number of odd data byte occurring in a block, starting from memory location 2501H to 25FFH. Store the result at the memory location 2600H.
Chapter:
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