Computer Organization Mid - II, April - 2011

1.IBM 370 I/O channels are ------- types
  • 1
  • 2
  • 3
  • 4
Answer: C
2.The block multiplexer channel combines the features of --------
  • multiplexer
  • selector
  • both
  • none
Answer: C
3.HDLC protocol adopted by the ---------
  • ISO
  • IBM
  • ANSI
  • none
Answer: A
4.Array processors are ------- types .
  • 1
  • 2
  • 3
  • 4
Answer: B
5.---- interrupt, the source that interrupts supplies the branch information to the computer.
  • vector
  • non vector
  • both
  • none
Answer: A
6.The -------- format of the control field is recognized from the first 2 bits are 1 and 0.
  • information
  • supervisory
  • unnumbered
  • none
Answer: B
7.The packet consists of -------
  • address
  • context
  • error detection code
  • all
Answer: D
8.A measure used to evaluate computer in their ability to perform a given number of floating –point operations per second is referred as -----
  • byte
  • bit
  • flops
  • none
Answer: C
9.In ASCII code ------ control characters .
  • 33
  • 46
  • 128
  • 95
Answer: A
10.DMA controller has -------- registers .
  • 1
  • 2
  • 3
  • 4
Answer: C
11.Format effectors are characters that control the ------ of printing .
Answer: LAYOUT
12.The -------- register holds the number of words to be transferred.
Answer: WORD COUNT
13.The ----- channel is designed to handle one I/O operation at a time .
Answer: SELECTOR
14.Computers are interconnected with each other by means of communication lines to form a ---------
Answer: COMPUTOR NETWORK
15.Each processor element in a -------- system has its own private local memory
Answer: LOOSLY COUPLED
16.Input or output devices attached to the computer are also called -----
Answer: PERIPHERALS
17.The extra time needed to bring the desired information into the -------- is called the miss penalty .
Answer: CACHE
18.A binary variable called a semaphore is used to indicate weather or not a Processor is executing a -------------
Answer: CRITICAL SECTION
19.Expand MFC -------------------------
Answer: MEMORY FUNCTION COMPLETED
20.The communication control characters are useful during the transmission o f text between --------
Answer: REMOTE TERMINALS