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
192. I/O modules move data
- Between external environment and computer
- In the computer main memory
- In Processors
- None of these.
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
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
195. The operations of the processor are supervised by
- Control and Status register
- Data register.
- Address register.
196. User-Visible register Which of the following do not support GUI (Graphical User Interface)
- DOS
- WINDOWS
- Linux
- None of these
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.
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
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
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