Write the following point for the instruction LDAX B in the 8085 Microprocessor:
Interpretation of Mnemonic
Computer Science 2 [Official]
Marks: 50 Maharashtra State Board
HSC Science (Computer Science)
Academic Year: 2022-2023
Date & Time: 15th March 2023, 11:00 am
Duration: 3h
HSC Science (Computer Science)
Academic Year: 2022-2023
Date & Time: 15th March 2023, 11:00 am
Duration: 3h
Advertisements
- 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.
[4]1. (A) | Select the correct alternative and rewrite the following:
[1]1. (A) (a)
Zero flag is not affected in ______ instruction.
XRA A
SUB A
CMP A
MVI A, OOH
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (A) (b)
The interrupt ______ is not a vectored.
INTR
TRAP
RST 7.5
RST.6.5
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (A) (c)
The most expensive cable amongst the following is ______.
UTP
Fiber Optic
Co-axial
STP
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (A) (d)
The internal ROM of 8051 is ______.
2 KB
8 KB
4 KB
16 KB
Concept: undefined - undefined
Chapter:
Chapter:
[9]1. (B) | Answer any two of the following:
[3]1. (B) (a)
[1]1. (B) (i)
Write two instructions of the 8085 microprocessor for the following:
1 byte
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (B) (ii)
Write two instructions of the 8085 microprocessor for the following:
2 bytes
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (B) (iii)
Write two instructions of the 8085 microprocessor for the following:
3 bytes
Concept: undefined - undefined
Chapter:
Chapter:
[3]1. (B) (b)
[1]1. (B) (b) (i)
Explain the following characteristics of transmission media:
Cost of Media
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (B) (b) (ii)
Explain the following characteristics of transmission media:
Electromagnetic interference
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (B) (b) (iii)
Explain the following characteristics of transmission media:
Band width
Concept: undefined - undefined
Chapter:
Chapter:
[3]1. (B) (c)
[1]1. (B) (c) (i)
[1]1. (B) (c) (ii)
Write the following point for the instruction LDAX B in the 8085 Microprocessor:
Addressing mode
Concept: undefined - undefined
Chapter:
Chapter:
[1]1. (B) (c) (iii)
Write the following point for the instruction LDAX B in the 8085 Microprocessor:
Number of byte(S)
Concept: undefined - undefined
Chapter:
Chapter:
[9]2. (A) | Answer any two of the following:
[3]2. (A) (a)
[3]2. (A) (b)
Advertisements
[1]2. (A) (b) (i)
Write the function of following pin in 8085 Microprocessor:
`bar(WR)`
Concept: undefined - undefined
Chapter:
Chapter:
[1]2. (A) (b) (ii)
Write the function of the following pin in 8085 Microprocessor:
`bar(RESETIN)`
Concept: undefined - undefined
Chapter:
Chapter:
[1]2. (A) (b) (iii)
Explain the function of the following pin of 8085 Micro-processor:
READY
Concept: undefined - undefined
Chapter:
Chapter:
[3]2. (A) (c)
[8]2. (B) | Answer any one of the followings:
[4]2. (B) (a)
If Accumulation contains AA H and register B contains 55 H, write the contents of Accumulator in hexadecimal after execution of each of the following instruction dependently (one after another):
- ORA, B
- CMA
- ADI, FFH
- INR A
Concept: undefined - undefined
Chapter:
Chapter:
[4]2. (B) (b)
[9]3. (A) | Answer any two of the following:
[3]3. (A) (a)
[0.5]3. (A) (a) (i)
Write the ROM size of the 8050 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[0.5]3. (A) (a) (ii)
Write the RAM size of the 8050 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[0.5]3. (A) (a) (iii)
Write the ROM size of the 8051 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[0.5]3. (A) (a) (iv)
Write the RAM size of the 8051 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[0.5]3. (A) (a) (v)
Write the ROM size of the 8052 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[0.5]3. (A) (a) (vi)
Write the RAM size of the 8052 microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[3]3. (A) (b)
If the contents of Accumulator is FFH. Write the status of zero flag, Auxillary carry flag and carry flag after the execution of instruction INR A in 8085 Microprocessor.
Concept: undefined - undefined
Chapter:
Chapter:
[3]3. (A) (c)
[1]3. (A) (c) (i)
Compare the 80286 and 80486 processors on the following attributes:
Data bus
Concept: undefined - undefined
Chapter:
Chapter:
[1]3. (A) (c) (ii)
Compare the 80286 and 80486 processors on the following attributes:
Address bus
Concept: undefined - undefined
Chapter:
Chapter:
[1]3. (A) (c) (iii)
Compare the 80286 and 80486 processors on the following attributes:
Physical memory size
Concept: undefined - undefined
Chapter:
Chapter:
[9]3. (B) | Answer any one of the following:
Advertisements
[5]3. (B) (a)
[2.5]3. (B) (a) (i)
Write any two instructions from the following group:
Logical group
Concept: undefined - undefined
Chapter:
Chapter:
[2.5]3. (B) (a) (ii)
Write any two instructions from the following group:
Data transfer group
Concept: undefined - undefined
Chapter:
Chapter:
[2.5]3. (B) (a) (iii)
Write any two instructions from the following group:
Arithmetic group
Concept: undefined - undefined
Chapter:
Chapter:
[2.5]3. (B) (a) (iv)
Write any two instructions from the following group:
Branching group
Concept: undefined - undefined
Chapter:
Chapter:
[4]3. (B) (b)
Draw and label the programming model of 80486 processor.
Concept: undefined - undefined
Chapter:
Chapter:
[3]4. (A) | Answer any two of the following:
[3]4. (A) (a)
Write any three points which specifies Accumulator of 8085 microprocessor as a special purpose register.
Concept: undefined - undefined
Chapter:
Chapter:
[3]4. (A) (b)
State any six features of 8051 Microcontroller.
Concept: undefined - undefined
Chapter:
Chapter:
[3]4. (A) (c)
[3]4. (A) (c)
Answer the following with respect to hardware interrupts of 8085 Microprocessor:
- List all interrupts.
- Specify the highest and lowest priority interrupts.
- Specify whether maskable or Non-maskable interrupt.
Concept: undefined - undefined
Chapter:
Chapter:
[8]4. (B) | Answer any one of the following:
[4]4. (B) (a)
Draw the labelled internal block diagram of 8085 Microprocessor
Concept: undefined - undefined
Chapter:
Chapter:
[4]4. (B) (b)
Write a short note on STAR topology using following points:
- Definition
- Diagram
- Advantages
- Disadvantages
Concept: undefined - undefined
Chapter:
Chapter:
[15]5. | Answer any two of the following:
[5]5. (a)
Write an Assembly Language Program to count number of zeros in a number stored at memory location 2600H. Store the count at 2601H.
Concept: undefined - undefined
Chapter:
Chapter:
[5]5. (b)
Write an Assembly Language Program to find the largest number in a block of memory locations begins from 2400H, block length is stored at 23 FFH. Store the largest number after the end of the block.
Concept: undefined - undefined
Chapter:
Chapter:
[5]5. (c)
Write, an Assembly Language Program to find absolute difference of two hex numbers stored in memory locations 2500 H and 2501 H. Store the result at 2502H.
Concept: undefined - undefined
Chapter:
Chapter:
OR
[15]5. | Answer any two of the following:[5]5. (a)
Write an Assembly Language Program to exchange the digits of a number the digits of a number stored in C200H and add it to the original number Store the result at C201H.
Concept: undefined - undefined
Chapter:
Chapter:
[5]5. (b)
Write an Assembly Language Program to count number of times data D9H present in a memory block begins from C400H. The length of the block is stored at C3FFH. Store the result after end of the block.
Concept: undefined - undefined
Chapter:
Chapter:
[5]5. (c)
A block of data is stored in memory locations from C200H to C20FH. Write an Assembly Language Program to transfer the block in reverse order to memory locations C300H and onwards.
Concept: undefined - undefined
Chapter:
Chapter:
Other Solutions
Submit Question Paper
Help us maintain new question papers on Shaalaa.com, so we can continue to help studentsonly jpg, png and pdf files
Maharashtra State Board previous year question papers 12th Standard Board Exam Computer Science 2 with solutions 2022 - 2023
Maharashtra State Board 12th Standard Board Exam Computer Science 2 question paper solution is key to score more marks in final exams. Students who have used our past year paper solution have significantly improved in speed and boosted their confidence to solve any question in the examination. Our Maharashtra State Board 12th Standard Board Exam Computer Science 2 question paper 2023 serve as a catalyst to prepare for your Computer Science 2 board examination.
Previous year Question paper for Maharashtra State Board 12th Standard Board Exam Computer Science 2-2023 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
By referring the question paper Solutions for Computer Science 2, you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of Maharashtra State Board 12th Standard Board Exam.
How Maharashtra State Board 12th Standard Board Exam Question Paper solutions Help Students ?
• Question paper solutions for Computer Science 2 will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.
Previous year Question paper for Maharashtra State Board 12th Standard Board Exam Computer Science 2-2023 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
By referring the question paper Solutions for Computer Science 2, you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of Maharashtra State Board 12th Standard Board Exam.
How Maharashtra State Board 12th Standard Board Exam Question Paper solutions Help Students ?
• Question paper solutions for Computer Science 2 will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.
