Basic Operating System MCQ

Basic Operating System MCQ
191. Memory buffer register (MBR) contains
  • Data that is to be written into memory
  • A particular I/O modue and the processor
  • Exchange data between I/O module and the processor and the processor
  • The instruction most recently fetched
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192. I/O modules move data
  • Between external environment and computer
  • In the computer main memory
  • In Processors
  • None of these.
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193. I/O OBR (I/O Buffer register ) is
  • Used for the exchange of data between an I/O module and the processor
  • Specifies particular I/O device
  • (A) and (B) both true
  • (A) and (B) both alse
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194. User-visible register
  • Enables machnine language programmer to minimize memory preference by optimizing register use.
  • Enables assembly language programmer to minimizing main memory reference by optimizing reguster use.
  • A and B both true
  • A and B both false
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195. The operations of the processor are supervised by
  • Control and Status register
  • Data register.
  • Address register.
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196. User-Visible register Which of the following do not support GUI (Graphical User Interface)
  • DOS
  • WINDOWS
  • Linux
  • None of these
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197. The MS-DOS and operating system and single threads
  • Multiple user process and single thread
  • Multiple user process and single thread
  • Single user process and single thread
  • Multiple user process and multiple threads.
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198. The UNIX, an operating system supports
  • Multiple user processes and single thread per process
  • Multiple user process and multiple threads per process
  • Single user process and single thread per process
  • Singe user process and multiple threads per process
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199. The Java run time environment is an example of
  • Single user process with multiple threads
  • Multiple user process with single thread per process.
  • Multiple user process with multiple threads per process.
  • None of these
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200. The Windows 2000, operating system supports
  • Multiple user processes with single threads per process
  • Multiple processes with multiple thread per process
  • Single process with single thread
  • Single process with multiple threads
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