Operating System (OS) The primary purpose of an operating system is: To allow people to use the computer To keep systems programmers employed To make computers easier to use To make the most efficient use of the computer hardware To allow people to use the computer To keep systems programmers employed To make computers easier to use To make the most efficient use of the computer hardware ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The SJF algorithm executes first the job with the least processor needs None of these that last entered the queue that has been in the queue the longest that first entered the queue with the least processor needs None of these that last entered the queue that has been in the queue the longest that first entered the queue ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Block or buffer caches are used None of these to improve disk performance to handle interrupts to speed up main memory read operation to increase the capacity of main memory None of these to improve disk performance to handle interrupts to speed up main memory read operation to increase the capacity of main memory ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands? auto decrement index addressing auto increment indirect addressing None of these auto decrement index addressing auto increment indirect addressing None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Special software to create a job queue is called a Drive Spooler None of these Interpreter Linkage editor Drive Spooler None of these Interpreter Linkage editor ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Addressing structure All of these performs indicated operations on two fast registers of the machine and leave the result in one of the registers. defines the fundamental method of determining effective operand addresses None of these are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing. All of these performs indicated operations on two fast registers of the machine and leave the result in one of the registers. defines the fundamental method of determining effective operand addresses None of these are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing. ANSWER DOWNLOAD EXAMIANS APP
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