PPSC Computer Science Chapter 17 Microprocessor And Assembly Language Online Test With Answers

PPSC Computer Science Chapter 17 Microprocessor And Assembly Language Online Test

Sr. # Questions Answers Choice
1 Which is designed is automatically manage the handshake operation. 8251 8254 8255 8259
2 The processer of knowing the status of device and transferring the data with matching speeds is called. Handshaking Peripheral Ports None
3 Which are used DMA controllers with 8085/8086 microprocessor. 8237 8357 Both a and b None
4 Which is widely used in interrupt controller with a number of microprocessor. 8251 8254 8255 8259
5 Which programmable timer is used to generate timing signal 8255 8254 8251 8259
6 Which is a programmable communication interface. 8255 8254 8251 8359
7 Which is the commonly used programmable interface and particular used to provide handshaking. 8251 8354 8459 8255
8 DAC stand for Analogue to analogue converters Analogue to digital converters Digital to digital converters Digital to analogue converters
9 MEMER and MEMW means Memory read Memory write Both a and b None
10 AEN stand for Address enable Address equivalent Acknowledgment enable Acknowledgment equivalent
11 HR stand for. Hold request Hold read Hold register Hold resolver
12 HLDA stand for High acknowledgment Hold acknowledgement High access Hold access
13 OCW stand for Operational command words Operational conjunction words Operational control words Operational cost words
14 ICW stand for interrupt command words Interrupt command write Initialization command words Initialization command write
15 RD stand for Read Register Request Real
16 INTA stand for Interrupt acknowledge Interrupt access Interrupt address None
17 INT stand for Input Interrupt Both a and b None
18 IMR stand for Input mask register Input mask resolver Interrupt mask resolver Interrupt mask register
19 PR stand for Priority register Priority resolver Priority request None
20 ISR stand for Interrupt service register Input service register In service register All of these
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