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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
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MICROPROCESSORS Questions and Answers pdf :1. The minimum number of transistors required to implement a two input AND gate is A. 2 B. 4 C. 6 D. 8
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: C 2. Using DeMorgan’s Theorem we can convert any AND-OR structure into A. NAND-NAND B. OR-NAND C. NAND-NOR D. NOR-NAND Answer: A 3. For a memory with a 16-bit address space, the addressability is A. 16 bits B. 8 bits C. 2^16 bits D. Cannot be determined Answer: D
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Engineering Quest 4. Because we wish to allow each ASCII code to occupy one location in memory, most memories are _____ addressable. A. BYTE B. NIBBLE C. WORD (16 bits) D. DOUBLEWORD (32 bits)
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Answer: A 5. Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. A. Circuit A has more gates than circuit B B. Circuit B has more gates than circuit A C. Circuit A has the same number of gates as circuit B (Hint: Construct the truth table for the adder and the multiplier) Answer: A http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
6. When the write enable input is not asserted, the gated D latch ______ its output. A. can not change B. clears C. sets D. complements Answer: A 7. A structure that stores a number of bits taken “together as a unit” is a A. gate B. mux C. decoder D. Answer: D 8. We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete A. set of {AND,OR} B. set of {EXOR, NOT} C. set of {AND,OR,NOT} D. None of the above
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Answer: C 9. Of the following circuits, the one which involves storage is A. RS Latch B. mux C. nand D. decoder Answer: A 10. If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
number of bits stored in the memory) A. doubles B. remains unchanged C. halves D. increases by 2^(address bits)/addressability Answer : C 12. If m is a power of 2, the number of select lines required for an m-input mux is: A. m B. 2^m C. log2 (m) D. 2*m Answer: C 13. For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2]. A. less than B. greater than C. the same as d . cannot be determined Answer: C 14. Which of the following conditions is not allowed in an RS latch? A. R is asserted, S is asserted B. R is asserted, S is negated C. R is negated, S is asserted D. R is negated, S is negated Answer: A
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
15. Which of the following pair of gates can form a latch? A. a pair of cross coupled OR B. a pair of cross copled AND C. a pair of cross coupled NAND D. a cross coupled NAND/OR Answer: C 16. ‘Burst refresh’ in DRAM is also called A. Concentrated refresh B. Distributed refresh C. Hidden refresh D. None of the above Answer: A 17. The number of interrupt lines in 8085 is A. 2 B. 3 C. 4 D. 5 Answer: D 18. A real number consists of A. integer part B. integer part and fraction part C. integer part, fraction part along with positive or negative sign D. none of the above Answer: C 19. Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran. http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran. A. Both A and R are correct and R is correct explanation of A B. Both A and R are correct but R is not correct explanation of A C. A is correct R is wrong D. A is wrong R is correct Answer: B 20. Which of the following is not treated as hexadecimal constant by assembler in 8085? A. 45 H B. 6 AFH C. 234 D. 64 H Answer: C 21. IC 7485 cannot be cascadeD. A. True B. False Answer: B 22. An I/O processor controls the flow of information between A. cache memory and I/O devices B. main memory and I/O devices C. two I/O devices D. cache and main memory Answer: B 23. MS Access is a DBMS software. A. True B. False http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: A 24. When .9432 E – 4 is subtracted from .5452 E – 3 in normalized floating point mode A. none of the numbers is changed B. .9432 E – 4 is changed to .09432 E – 3 and .5452 E – 3 is not changed C. .5452 E – 3 is changed to 5.452 E – 4 but .9432 E – 4 is not changed D. both Ihe numbers are changed and their exponents are, made equal to -5 Answer: B 25. DS directive in 8085 A. forces the assembler to reserve one byte of memory B. forces the assembler to reserve a specified number of bytes in the memory C. forces the assembler to reserve a specified number of consecutive bytes in the memory D. none of the above Answer: C 26. Which of the following is a valid integer constant? A. 127 B. 127.0 C. 127 D. 125 + 3 Answer: A 27. The five flags in 8085 are designated as A. Z, CY, S, P and AC B. D, Z, S, P, AC http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
C. Z, C, S, P, AC D. Z, CY, S, D, AC Answer: A 28. In 8085 which addressing mode is also called inherent addressing? A. Direct B. C. Implicit D. Immediate Answer: C 29. It is possible to copy a file in the same directory. A. True B. False Answer: A 30. In a computer the data transfer between hard disk and U is nearly the same as that between diskette and U. A. True B. False Answer: B 31. The timing difference between a slow memory and fast processor can be resolved if A. processor is capable of waiting B. external buffer is used C. either (a) or (b) D. neither (a) nor (b) Answer: C http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
32. In 8086 the number of bytes which can be addressed directly is about A. 1000 B. 10000 C. 100000 D. one million Answer: D 33. In Fortran 77 a variable name can contain special characters. A. True B. False Answer: B 34. Which of the following is not a general purpose peripheral? A. I/O port B. Programmable interrupt controller C. Programmable CRT controller D. Programmable interval timer Answer: C 35. Each instruction in assembly language program has the following fields: Lable field Mnemonic field Operand field Comment field The correct sequence of these fields is? A. 1, 2, 3, 4 B. 1, 2, 4, 3 C. 2, 1, 3, 4 D. 2, 1, 4, 3 http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: A 36. In one’s complement 8 bit representation 11111111 represents A. +0 B. -0 C. +1 D. -1 Answer: B 37. The operating modes of 8255 A are called A. mode 0 and mode 1 B. mode 0, mode 1 and mode 2 C. mode 0 and mode 2 D. mode 0, mode 2 and mode 3 Answer: B 38. Which of the following is type declaration statement in C? A. int bar B. s = s + 1 C. king = horse + 1 D. prin = prin * prin Answer: A 39. Internet is a worldwide network of computers where most of the information is freely available. A. True B. False Answer: A 40. A 37 bit mantissa has an accuracy of http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
A. 6 decimal places B. 8 decimal places C. 10 decimal places D. 11 decimal places Answer: D 41. In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is A. assignment, relational, arithmetic B. relational, assignment, arithmetic C. arithmetic, assignment, relational D. arithmetic, relational, assignment Answer: D 42. In 8085, the pins for SID and SOD are A. 4 and 5 respectively B. 5 and 4 respectively C. 3 and 4 respectively D. 4 and 3 respectively Answer: B 43. Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip. A. Both A and R are correct and R is correct explanation of A B. Both A and R are correct but R is not correct explanation of A C. A is correct R is wrong D. A is wrong R is correct Answer: D http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
44. An e-mail message can be sent to many recipients. A. True B. False Answer: A 45. In C the keywords are also called A. special words B. reserved words C. class words D. character words Answer: B 46. The character set of Fortran 77 includes lower case alphabets a to z. A. True B. False Answer: B 47. Which memory has read operation, byte erase, byte write and chip erase? A. RAM B. UVEPROM C. EEPROM D. both (b) and (c) Answer: C 48. The forms of IF statements in FORTRAN 77 are called A. logical IF and Block IF B. logical IF, block IF and arithmetic IF http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
C. logic IF, block IF, arithmetic IF and negate IF D. logical IF and arithmetic IF Answer: B 49. In 8085 A. P flag is set when the result has even parity B. P flag is set when the result has odd parity C. P flag is reset when the result has odd parity D. P flag is reset when the result has even parity Answer: A 50. If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is A. a larger floating point number B. a smaller floating point number C. either (a) or (b) depending on the actual number D. a negative floating point number Answer: A
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free . CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical Online Quiz Tests for Freshers. HOME Interview Questions MCQs *LAB VIVA CLASS NOTES SEMINAR TOPICS ONLINE TEST GATE IIT JEE CAT
Home » Microprocessors Questions » 100 TOP MICROPROCESSORS Questions and Answers pdf
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MICROPROCESSORS Questions and Answers pdf :1. The minimum number of transistors required to implement a two input AND gate is A. 2 B. 4 C. 6 D. 8
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: C 2. Using DeMorgan’s Theorem we can convert any AND-OR structure into A. NAND-NAND B. OR-NAND C. NAND-NOR D. NOR-NAND Answer: A 3. For a memory with a 16-bit address space, the addressability is A. 16 bits B. 8 bits C. 2^16 bits D. Cannot be determined Answer: D
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Engineering Quest 4. Because we wish to allow each ASCII code to occupy one location in memory, most memories are _____ addressable. A. BYTE B. NIBBLE C. WORD (16 bits) D. DOUBLEWORD (32 bits)
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Answer: A 5. Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier. A. Circuit A has more gates than circuit B B. Circuit B has more gates than circuit A C. Circuit A has the same number of gates as circuit B (Hint: Construct the truth table for the adder and the multiplier) Answer: A http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
6. When the write enable input is not asserted, the gated D latch ______ its output. A. can not change B. clears C. sets D. complements Answer: A 7. A structure that stores a number of bits taken “together as a unit” is a A. gate B. mux C. decoder D. Answer: D 8. We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete A. set of {AND,OR} B. set of {EXOR, NOT} C. set of {AND,OR,NOT} D. None of the above
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Answer: C 9. Of the following circuits, the one which involves storage is A. RS Latch B. mux C. nand D. decoder Answer: A 10. If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
number of bits stored in the memory) A. doubles B. remains unchanged C. halves D. increases by 2^(address bits)/addressability Answer : C 12. If m is a power of 2, the number of select lines required for an m-input mux is: A. m B. 2^m C. log2 (m) D. 2*m Answer: C 13. For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2]. A. less than B. greater than C. the same as d . cannot be determined Answer: C 14. Which of the following conditions is not allowed in an RS latch? A. R is asserted, S is asserted B. R is asserted, S is negated C. R is negated, S is asserted D. R is negated, S is negated Answer: A
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
15. Which of the following pair of gates can form a latch? A. a pair of cross coupled OR B. a pair of cross copled AND C. a pair of cross coupled NAND D. a cross coupled NAND/OR Answer: C 16. ‘Burst refresh’ in DRAM is also called A. Concentrated refresh B. Distributed refresh C. Hidden refresh D. None of the above Answer: A 17. The number of interrupt lines in 8085 is A. 2 B. 3 C. 4 D. 5 Answer: D 18. A real number consists of A. integer part B. integer part and fraction part C. integer part, fraction part along with positive or negative sign D. none of the above Answer: C 19. Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran. http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran. A. Both A and R are correct and R is correct explanation of A B. Both A and R are correct but R is not correct explanation of A C. A is correct R is wrong D. A is wrong R is correct Answer: B 20. Which of the following is not treated as hexadecimal constant by assembler in 8085? A. 45 H B. 6 AFH C. 234 D. 64 H Answer: C 21. IC 7485 cannot be cascadeD. A. True B. False Answer: B 22. An I/O processor controls the flow of information between A. cache memory and I/O devices B. main memory and I/O devices C. two I/O devices D. cache and main memory Answer: B 23. MS Access is a DBMS software. A. True B. False http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: A 24. When .9432 E – 4 is subtracted from .5452 E – 3 in normalized floating point mode A. none of the numbers is changed B. .9432 E – 4 is changed to .09432 E – 3 and .5452 E – 3 is not changed C. .5452 E – 3 is changed to 5.452 E – 4 but .9432 E – 4 is not changed D. both Ihe numbers are changed and their exponents are, made equal to -5 Answer: B 25. DS directive in 8085 A. forces the assembler to reserve one byte of memory B. forces the assembler to reserve a specified number of bytes in the memory C. forces the assembler to reserve a specified number of consecutive bytes in the memory D. none of the above Answer: C 26. Which of the following is a valid integer constant? A. 127 B. 127.0 C. 127 D. 125 + 3 Answer: A 27. The five flags in 8085 are designated as A. Z, CY, S, P and AC B. D, Z, S, P, AC http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
C. Z, C, S, P, AC D. Z, CY, S, D, AC Answer: A 28. In 8085 which addressing mode is also called inherent addressing? A. Direct B. C. Implicit D. Immediate Answer: C 29. It is possible to copy a file in the same directory. A. True B. False Answer: A 30. In a computer the data transfer between hard disk and U is nearly the same as that between diskette and U. A. True B. False Answer: B 31. The timing difference between a slow memory and fast processor can be resolved if A. processor is capable of waiting B. external buffer is used C. either (a) or (b) D. neither (a) nor (b) Answer: C http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
32. In 8086 the number of bytes which can be addressed directly is about A. 1000 B. 10000 C. 100000 D. one million Answer: D 33. In Fortran 77 a variable name can contain special characters. A. True B. False Answer: B 34. Which of the following is not a general purpose peripheral? A. I/O port B. Programmable interrupt controller C. Programmable CRT controller D. Programmable interval timer Answer: C 35. Each instruction in assembly language program has the following fields: Lable field Mnemonic field Operand field Comment field The correct sequence of these fields is? A. 1, 2, 3, 4 B. 1, 2, 4, 3 C. 2, 1, 3, 4 D. 2, 1, 4, 3 http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
Answer: A 36. In one’s complement 8 bit representation 11111111 represents A. +0 B. -0 C. +1 D. -1 Answer: B 37. The operating modes of 8255 A are called A. mode 0 and mode 1 B. mode 0, mode 1 and mode 2 C. mode 0 and mode 2 D. mode 0, mode 2 and mode 3 Answer: B 38. Which of the following is type declaration statement in C? A. int bar B. s = s + 1 C. king = horse + 1 D. prin = prin * prin Answer: A 39. Internet is a worldwide network of computers where most of the information is freely available. A. True B. False Answer: A 40. A 37 bit mantissa has an accuracy of http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
A. 6 decimal places B. 8 decimal places C. 10 decimal places D. 11 decimal places Answer: D 41. In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is A. assignment, relational, arithmetic B. relational, assignment, arithmetic C. arithmetic, assignment, relational D. arithmetic, relational, assignment Answer: D 42. In 8085, the pins for SID and SOD are A. 4 and 5 respectively B. 5 and 4 respectively C. 3 and 4 respectively D. 4 and 3 respectively Answer: B 43. Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip. A. Both A and R are correct and R is correct explanation of A B. Both A and R are correct but R is not correct explanation of A C. A is correct R is wrong D. A is wrong R is correct Answer: D http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
44. An e-mail message can be sent to many recipients. A. True B. False Answer: A 45. In C the keywords are also called A. special words B. reserved words C. class words D. character words Answer: B 46. The character set of Fortran 77 includes lower case alphabets a to z. A. True B. False Answer: B 47. Which memory has read operation, byte erase, byte write and chip erase? A. RAM B. UVEPROM C. EEPROM D. both (b) and (c) Answer: C 48. The forms of IF statements in FORTRAN 77 are called A. logical IF and Block IF B. logical IF, block IF and arithmetic IF http://engineeringinterviewquestions.com/microprocessors-questions-answers-pdf/
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
C. logic IF, block IF, arithmetic IF and negate IF D. logical IF and arithmetic IF Answer: B 49. In 8085 A. P flag is set when the result has even parity B. P flag is set when the result has odd parity C. P flag is reset when the result has odd parity D. P flag is reset when the result has even parity Answer: A 50. If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is A. a larger floating point number B. a smaller floating point number C. either (a) or (b) depending on the actual number D. a negative floating point number Answer: A
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100 TOP MICROPROCESSORS Questions and Answers pdf Microprocessors Questions
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