Operating System (OS) Block or buffer caches are used to speed up main memory read operation to handle interrupts to increase the capacity of main memory None of these to improve disk performance to speed up main memory read operation to handle interrupts to increase the capacity of main memory None of these to improve disk performance ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following is not an operating system ? DOS Linux Oracle Windows DOS Linux Oracle Windows ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list? indirect addressing index addressing auto increment None of these auto decrement indirect addressing index addressing auto increment None of these auto decrement ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Who is called a supervisor of computer activity ? I / O Devices Operating system Control unit Memory I / O Devices Operating system Control unit Memory ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The initial value of the semaphore that allows only one of the many processes to enter their critical sections, is None of these 16 1 8 0 None of these 16 1 8 0 ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) A utility that can be used to minimize the number of fragmented files and enhance the speed Disk space Double space Defrag Scandisk Disk space Double space Defrag Scandisk ANSWER DOWNLOAD EXAMIANS APP
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