MICROPROCESSOR QUIZ

Distributed refresh

Hidden refresh

None of these

Concentrated refresh

 Arithmetic and logic operations can be directly performed with the I/O data

 Devices have 8-bit address line

 There can be maximum of 256 input devices and 256 output devices

 Devices are accessed using IN and OUT instructions

 PAL

 PROM

 PLD

 PLA

 all the registers and counters are being reset and this signal can be used to reset external support chip

 all the registers and counters are being reset

 all the registers of the CPU are being reset

 processing can begin when this signal goes high

 65536

 64

 512

 256

Circuit A has the same number of gates as circuit B

Circuit A has more gates than circuit B

None of these

Circuit B has more gates than circuit A

False

True

 ORA A

 SUB A

 MOV A, 00H

 CLR A

False

True

 1Khz.

 8 Mhz.

 2 Khz.

 2 Mhz.