BEJ32202 OS CHAP 1

Open Ended

Why are operating systems considered essential for modern computers?

Multiple Choice

Which component in the computer system architecture is responsible for managing communication between the CPU and memory?

• Disk controller

• Printer controller

• Memory controller

• Tape-drive controller

Open Ended

Compare the two computer system architectures shown in the first and second images. What are some key differences in how I/O devices are managed?

Multiple Select

Which of the following are goals of an operating system?

• Simplify user program execution

• Increase hardware cost

• Provide isolation and security

• Make software less portable

Open Ended

Why is it important to understand the interaction between hardware and applications when studying operating systems?

Multiple Choice

Which of the following is an example of a specialized operating system used in real-world applications today?

• General-purpose desktop OS

• Embedded OS for cell phones

• Spreadsheet software

• Word processing software

Multiple Choice

Which of the following is NOT an example of a modern smart system as depicted in the first image?

• OnStar vehicle system

• Automated vehicle check-in for traffic

• Irvine Sensorium city sensors

• Mechanical typewriter

Open Ended

How does Moore's Law relate to the increase in hardware complexity, and what impact does this have on system performance?

Multiple Choice

Which of the following operating systems had the highest number of millions of lines of source code according to the chart?

• Windows NT 5.0

• RedHat Linux 7.1

• Windows XP

• Vista

Multiple Select

What were the main problems associated with supervisor/operator control in early computing systems?

• Long turnaround time

• High CPU utilization

• I/O and CPU could not overlap

• Slow mechanical devices

Open Ended

Explain how spooling improved CPU utilization in batch systems.

Multiple Choice

Which of the following is a key difference between Direct Memory Access (DMA) and Channels in speeding up I/O operations?

• DMA allows direct communication between I/O devices and memory, while Channels introduce an intermediary for I/O commands.

• DMA uses a channel for communication, while Channels bypass the CPU entirely.

• Channels are only used for output devices, while DMA is used for both input and output devices.

• DMA requires CPU intervention for every I/O command, while Channels do not.

Open Ended

Explain how polling and interrupts differ in determining I/O completion in batch systems.

Multiple Select

Which of the following are requirements for multiprogramming systems?

• Secure memory for each program

• CPU scheduling to choose the next job

• Polling for I/O completion only

• Intervention if a program loops indefinitely

Open Ended

How does timesharing differ from multiprogramming in terms of job scheduling and execution?

Multiple Choice

Which of the following is NOT typically considered an advantage of personal computing systems?

• User convenience

• Responsiveness

• Advanced CPU utilization features

• Ubiquity

Open Ended

Reflecting on today's lesson, which type of operating system do you find most interesting and why?