Homework $1$

Chapter $1$: Introduction $($operating system$)$

Explain briefly the concept of abstraction used in operating system design. Which Hardware and software components can an operating system make it abstract and how?

What is computer resour$?$ You should think in both hardware and software resources. Give examples and their usage in a computer system.

What is an operating system? Explain briefly what is the role of an operating system

How can an operating systemaccomplish its role mentioned in your answer to the question above?

How can an operating system be loaded into memory?

Explain briefly what is meant by$?$ What is an interrupt vector?

What is meant by mode bit at the CPU level?

Why do operating system support multiprogramming$/$multitasking$?$ How does an operating system achieve this goal? Explain briefly job scheduling, Timer, $....$ Interrupts, $....$ Etc

Explain briefly how an operating systemcan provide its services to user process? You may need to explain the dual mode of operation, how and when the transition between the modes can happen

Explain briefly What is meant by the following:

a$-$ An operating system is interrupt driven system

b$-$ Interrupt vector

c$-$ Device driver

d$-$ CPU modebit

e$-$ Kernel mode

f$-$ system call

g$-$ Boot strap

h$-$ Virtual memory

i$-$Swapping

j$-$Synchronous and asynchronous I$/$O operation

k$-$ Cachememory

l$-$Concurrency and parallelism process execution

m$-$ Data consistency