Microprocessor and Microcontroller Multiple Choice Questions and Answers

71. The _______ is used to connect more microprocessor

1. peripheral device
2. cascade
3. I/O devices
4. control unit

72. CS connect the output of ______

1. encoder
2. decoder
3. slave program
4. buffer

73. In which year, 8086 was introduced?

1. 1978
2. 1979
3. 1977
4. 1981

74. Expansion for HMOS technology_______

1. high level mode oxygen semiconductor
2. high level metal oxygen semiconductor
3. high performance medium oxide semiconductor
4. high performance metal oxide semiconductor

75. 8086 and 8088 contains _______ transistors

1. 29000
2. 24000
3. 34000
4. 54000

76. ALE stands for ___________

1. address latch enable
2. address level enable
3. address leak enable
4. address leak extension

77. What is DEN?

1. direct enable
2. data entered
3. data enable
4. data encoding

78. In 8086, Example for Non maskable interrupts are ________.

1. TRAP
2. RST6.5
3. INTR
4. RST6.6

79. In 8086 the overflow flag is set when _____________.

1. the sum is more than 16 bits.
2. signed numbers go out of their range after an arithmetic operation.
3. carry and sign flags are set.
4. subtraction

80. In 8086 microprocessor the following has the highest priority among all type interrupts?

1. NMI
2. DIV 0
3. TYPE 255
4. OVER FLOW