Operating system

What is an operating system?

• a) interface between the hardware and application programs

• b) collection of programs that manages hardware resources

• c) system service provider to the application programs

• d) all of the mentioned

Which of these is an example of an operating system?

• Windows

• Word

• Excel

• PS3

Which of the following best describes multiprogramming?

• a) Executing multiple programs concurrently on a single processor

• b) Running a single program on multiple processors simultaneously

• c) Switching between different programs to maximize CPU utilization

• d) Allowing multiple users to access the system simultaneously

Which of the following is a benefit of multiprogramming?

• a) Reduced response time for interactive tasks

• b) Increased processor speed

• c) Decreased context switching overhead

• d) Limited scalability

How many types of operating system are there?

• 5

• 6

• 7

• 8

Where is the operating system placed in the memory?

• a) either low or high memory (depending on the location of interrupt vector)

• b) in the low memory

• c) in the high memory

• d) none of the mentioned

Which of the following components is typically NOT found in a personal computer (PC)?

• a) Central Processing Unit (CPU)

• b) Graphics Processing Unit (GPU)

• c) Random Access Memory (RAM)

• d) Supercomputer-grade processor

Which communication model is commonly used in distributed systems?

• a) Point-to-point

• b) Broadcast

• c) Multicast

• d) All-to-all

What is the primary application domain for real-time systems?

• a) Web browsing

• b) Scientific computing

• c) Embedded systems

• d) Database management

What is the primary advantage of a distributed system?

• a) Reduced complexity

• b) Increased reliability

• c) Lower cost

• d) Higher processing speed