Virtualization Font Family Operating System

uses application and non-cooperative

uses comment and content

uses cooperative and non-cooperative

uses application and non priviledge

a convoy effect

a content effect

a comment effect

a context effect

Process B has descheduled and Process A has been blocked.

Process B has been scheduled and Process A has been Descheduled

Process A has been scheduled and Process B has been blocked

Process A has been scheduled and process B has been descheduled.

wherewas gcc make

wheremake gcc was

whereis gcc make

whereis make gcc

./cpu “a”, ./cpu “b”, ./cpu “c”,; ./cpu “d”;

./cpu a;, ./cpu b,; ./cpu c; ./cpu d &

;/cpu a, ./cpu b &, ./cpu c,; ./cpu d

./cpu a & ./cpu b & ./cpu c & ./cpu d &

CPU, and the resource will process data until the running program is done then the OS will sit idle or forcefully take the process away

Mechanisms, where it shares low-level methods or protocols to implement a needed piece of programs using a context switch.

Space sharing , where a resource is divided into blocks among those who wish to use it. once a block is assigned to a file, it is not likely to be assigned to another file until the user deletes it.

All of the Above

250/3

250/3

150/3

50/3

a convoy switch

a content switch

a comment switch

a context switch

mechanism and process identifier

concurrently and perfomance

mechanism and intelligence

process identifier and concurrently

Shortest Time First

Response Time

Round Robin

Shortest Time to Completion

Process B has descheduled and Process A has been blocked.

Process B has been scheduled and Process A has been Descheduled

Process A has been scheduled and Process B has been blocked

Process A has been scheduled and process B has been descheduled.

Process B has descheduled and Process A has been blocked.

Process B has been scheduled and Process A has been Descheduled

Process A has been scheduled and Process B has been blocked

Process A has been scheduled and process B has been descheduled.

algorithm

fetch

trap

high-level

fork()

wait()

exec()

kill()

gcc cpu cpu.c -pthread

gcc-o cpu cpu.c

gcc -o cpu cpu.c -pthread

gcc cpu cpu.c

The creating process is called a parent, it has a process identifier, and it will execute after the created process called a child has executed.

The created process uses create routine called a parent, the process identifier is not needed, and it will execute first. The mechanic process is called a child.

The created process is called a parent, it has a process identifier, and it will execute first. The creating process is called a child, it has a process identifier but cannot execute.

The creating process is called a parent, it has a process identifier, and it will execute first. The created process is called a child, it has a process identifier but cannot execute.

FIFO

SJF

STCF

RR

return-from-trap

return-from-algorithm

return-from-fetch

return-from-low-level

The creating process is called a parent, it has a process identifier, and it will execute after the created process called a child has executed.

The created process uses create routine called a parent, the process identifier is not needed, and it will execute first. The mechanic process is called a child.

The created process is called a parent, it has a process identifier, and it will execute first. The creating process is called a child, it has a process identifier but cannot execute.

The creating process is called a parent, it has a process identifier, and it will execute first. The created process is called a child, it has a process identifier but cannot execute.

Fetch()

Spin()

wait()

exec()

Tcompletion – Tfirstrun

Tfirstrun – Tarrival

Tfirstrun – Tturnaround

Tturnaround – Tcompletion

performance and convoy effects

mid-level and low-level

time sharing and space sharing

performance and control

create. edit, and delete

create, destroy, and wait

fetch, decode, and run

fetch, create, and destroy

after the OS closes

during an application use

after using an application

during the OS boot

CPU, and the resource will process data until the running program is done then the OS will sit idle or forcefully take the process away

Mechanisms, where it shares low-level methods or protocols to implement a needed piece of programs using a context switch.

Space sharing , where a resource is divided into blocks among those who wish to use it. once a block is assigned to a file, it is not likely to be assigned to another file until the user deletes it.

All of the Above

Tarrival – Tperformance

Tcompletion – Tcontrol

Tperformance – Tcontrol

Tcompletion – Tarrival

application mode

privileged

least privileged

spacing mode

fork(), wait(), and exec()

create(), destroy(), and exec()

fork(), wait() and create()

create(), exec(), and destroy()

OS is virtualizing memory

CPU is executing memory

Memory is virtualing CPU

No valid conclusion can be drwan from above

codes used by hardware to know which particular trap to use

codes used by software to know which particular trap to use

codes used by hardware to trace which particular fetch()

codes used by software to trace which particular fetch()

fork()

wait()

exec()

kill()

FIFO

SJF

STCF

RR

algorithms

virtualization

convoy effects

process

The creating process is called a parent, it has a process identifier, and it will execute after the created process called a child has executed.

The created process uses create routine called a parent, the process identifier is not needed, and it will execute first. The mechanic process is called a child.

The created process is called a parent, it has a process identifier, and it will execute first. The creating process is called a child, it has a process identifier but cannot execute.

The creating process is called a parent, it has a process identifier, and it will execute first. The created process is called a child, it has a process identifier but cannot execute.

process

virtualization

convoy effects

algorithms

standard input, output, and error;

fetch, wait, and exec

create, edit, and delete

standard fetch, output, and input

user mode

kernel mode

fetch mode

process mode

create

destroy

performance

decoding

CPU, and the resource will process data until the running program is done then the OS will sit idle or forcefully take the process away

Mechanisms, where it shares low-level methods or protocols to implement a needed piece of programs using a context switch.

Space sharing , where a resource is divided into blocks among those who wish to use it. once a block is assigned to a ?le, it is not likely to be assigned to another file until the user deletes it.

All of the Above

FIFO

SJF

STCF

RR

25

35

45

55

process

virtualization

convoy effects

algorithms

used to hand control to the OS

used to execute the OS

makes mechanisms work well for the OS

makes response time effective

fork()

wait()

exec()

kill()

fetches an instruction from memory, executes it and encode it

fetches an instruction from memory, decodes it and jumps to a function

executes an instruction from memory, decodes it and fetches it

executes an instruction from memory, decodes it and fetches it