Disk Operating System (DOS) is an example of ___.

• Real-Time OS
• Distributed OS
• Multi-processor OS
• PC OS

The OS in IBM 370 is based on the ___ approach

• Kernel
• Virtual Machine
• Layered
• None of the above

By using ___ techniques, an operating system can create the illusion that a process has its own processor with its own memory

• CPU Scheduling
• Virtual Memory
• Both A and B
• None of the above

___ allows plug-in hardware to include boot-time diagnostics, configuration code, and device drivers that will run on any kind of CPU.

• p-code
• Open Firmware
• Common Language Runtime (CLR)
• Java Virtual Machine (JVM)

In the mid-1980s, researches at Carnegie Mellon University developed an operating system called ___ that modularized the kernel using the microkernel approach

• DOS
• Unix
• Linux
• Mac

___ is a part of UNIX OS

• Module
• Kernel
• Software
• Core

In real systems CPU utilization ranges from ___ for a lightly loaded system to ___ for heavily loaded systems

• 40%, 90%
• 50%, 50%
• 90%, 40%
• 25%, 75%

When a process is waiting for CPU, we can say it is in ___ state

• Ready
• Running
• Waiting
• New

The ___ queue has a finite length n; thus, at most n messages can reside in it. (Pick right option)

• Zero Capacity
• Bounded Capacity
• Unbounded Capacity
• The code does not compile.

Which generation of operating systems introduced batch processing?

• First Generation
• Second Generation
• Third Generation
• Fourth Generation