Computer Organization Mid - II, April - 2015

1.A ____ is a program sequence that, once begun, must complete execution before another processor accesses the same resource.
  • Critical Section
  • Semaphore
  • Variable
  • Hardware lock
Answer: A
2.The address generated by processor is called to as a ____ address.
  • Physical
  • Logical
  • Virtual
  • both B&C
Answer: D
3.Memory that consists of circuits capable of retaining their state as long as power is applied are known as ____
  • Static memory
  • Dynamic memory
  • Virtual memory
  • none
Answer: A
4.A major advantage of CMOS SRAM’s is ______ consumption.
  • Power
  • Capacity
  • Space
  • Above ALL
Answer: A
5.A ____ command is issued to activate the peripheral and to inform it what to do.
  • I/O command
  • Control
  • Status
  • Output data
Answer: B
6.Data channel is also called _____
  • CPU
  • DMA
  • IO Processor
  • None
Answer: C
7.In ______ organization, there are no specific I/O instructions.
  • Isolated
  • Memory mapped
  • DMA
  • none
Answer: B
8.Data transfer to and from peripheral may be done by _____ mode.
  • Programmed I/O
  • Interrupt initiated I/O
  • DMA
  • Above ALL
Answer: D
9.In an Asynchronous serial transmission, start bit always ________
  • 0
  • 1
  • group of 1’s
  • none
Answer: A
10.Instruction pipeline have ______ difficulty.
  • Resource conflict
  • data dependency
  • branch Difficulties
  • Above ALL
Answer: D
11.Computer systems include special hardware components between CPU and peripheral unit is called ______________ units.
Answer: Interface
12.In _______________ inetrrupt, the branch address is assigned to a fixed loaction in memory.
Answer: Non-Vectored
13.The computer combines the Interface logic with DMA into one unit is called _________________
Answer: I/O Processor(IOP)
14.The CPU activates the ___________ signal output to inform the external DMAthat the buses are in the high impedance state.
Answer: Bus Grant
15.The amount of processing that can be accomplished during a given interval of time is called ___________________
Answer: Throughput
16.Distributed memory system is also referred to as ___________________
Answer: Loosly Coupled System
17.A Bus that connects major components in a multiprocessor system such as CPU's, IOP's, and memory is called ________________
Answer: System Bus
18.____________________ is deals with computations involving large vectors and matrices.
Answer: Vector Processing
19.UART stands for _______________________________
Answer: Universla Asynchronous Receiver- Transmitter
20.A Multiprocessor system with common shared memory is calssified as ______________________
Answer: Tightly Coupled System