HSC Science (Computer Science)
Academic Year: 2023-2024
Date & Time: 14th March 2024, 11:00 am
Duration: 3h
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The invalid register pair in 8085 Microprocessor is ______.
BC
HL
SP
DE
Chapter:
The length of instruction PUSH Rp is ______ byte(s).
2
1
3
4
Chapter:
The device used to extend cable length of a network is ______.
modem
Repeater
Hub
Router
Chapter:
Content of flag register of 8085 Microprocessor is 55H. Write its bit pattern and give interpretations.
Chapter:
Explain the function of ALU with a simple block diagram.
Chapter:
State any 4 advantages of same over microprocessor based system.
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
LDA CO40H
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
ADC M
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
CPI D4H
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
ORI 9DH
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
XTHL
Chapter:
Identify 1-byte, 2-byte and 3-byte instruction from the following and write the same:
LHLD 2060H
Chapter:
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Explain in short six characteritics of Transmission Media.
Chapter:
State any three addressing modes of 8085 Microprocessor instructions with one example of each.
Chapter:
Explain the functions of the following pin of 8085 Microprocessor:
`bar("RD")`
Chapter:
Explain the functions of the following pin of 8085 Microprocessor:
HOLD
Chapter:
Explain the functions of the following pin of 8085 Microprocessor:
RST 7.5
Chapter:
Explain the functions of the following pin of 8085 Micro Processor:
`bar("INTA")`
Chapter:
State any two advantages of wireless media in networking.
Chapter:
State any one disadvantage of wireless media in networking.
Chapter:
Explain the following connectivity device:
Modem
Chapter:
Consider Accumulator contains FFH and register C contains 4DH. Execute following instructions one after the other and write contents of Accumulator after each instruction:
- XRA A
- ADD C
- CPI 4D H
- SUB C
Chapter:
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Differentiate between Hardware and Software interrupts of 8085 Microprocessor. (Any three points)
Chapter:
State any six features of 8051 Microcontroller.
Chapter:
Draw and label programming model of 80286 Microprocessor.
Chapter:
List all conditional jump instructions of 8085 Microprocessor with the condition of flag, in each.
Chapter:
Explain the following feature of Pentium Microprocessor:
Dual Pipeline
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:
Write an assembly language program to multiply two 1-byte data stored at memory locations C600 H and C601 H respectively. Store the 16-bit result at locations C602 H and C603 H beginning with lower order byte of the result.
Chapter:
Consider a block memory locations from C300 H to C30F H, another block from C400 H to C40F H. Write an assembly language program to exchange contents of these two blocks.
Chapter:
Write an assembly language program to get Binary Coded Decimal (BCD) sum of series of 1-byte numbers stored at locations beginning 2600 H. Length of series is at 25FF H. Store the 1-byte result in 2700 H.
Chapter:
A series of 1-bute hexadecimal data is stored at memory locations from D600 H to D60A H. Write an assembly language program to replace each odd number in the series with data 00H.
Chapter:
Consider a block of memory locations beginning D600 H to D60F H. Write an assembly language program to find first occurrence of data byte A2 H, found HL pair must contain 0000H.
Chapter:
A block of fifteen memory locations begins D200 H. Write an assembly language program to convert each data in the block into its 1's complement. Store the result at locations beginning D300 H.
Chapter:
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