Matching a scenario to an operating system function

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Date:

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Quick Questions

Shade in the A or B circle for each question.

1. You play music while writing an essay, and both programs run smoothly at the same time. Which OS function is this?

A Managing multitasking

B Providing a command-line interface

2. You plug in a new printer and the OS loads the software it needs to talk to it. Which OS function is this?

A Managing peripherals and drivers

B Managing user accounts

3. A student types a username and password to log in to a school computer. Which OS function is this?

A Managing user accounts

B Managing peripherals and drivers

4. Two programs are open at once. Which explanation is correct?

A Multitasking, because the OS loads a driver for each program

B Multitasking, because the OS shares CPU time between the programs

5. A new printer is plugged in and works. Which explanation is correct?

A Managing files, because the OS saves the printer in a folder

B Peripherals and drivers, because the OS uses a driver to talk to the printer

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1Game and music player open at once		AManaging multitasking, because the OS shares CPU time between the programs
2Plug in a printer, OS loads its driver		BgiveCPUTime(game) giveCPUTime(music)
3Logging in is user accounts and security because the OS checks who you are		CA new printer needs peripherals and drivers, not files, because the OS must load a driver to control the device
4Two programs open at once is multitasking because the CPU is shared		DManaging peripherals and drivers, because the OS needs the driver to talk to the device
5Typing a password to log in = managing memory		EChecking a password is user accounts and security, not memory, because the OS is checking who the user is
6Plugging in a printer = managing files		FIF password = storedPassword THEN allowAccess

Definitions

scenario to function

Fill in the Blanks

Complete each line of code by filling in the missing parts.

scenario = "Two programs open at once" function = "____________"

scenario = "A printer is plugged in" function = "managing ___________ and drivers"

scenario = "A new student gets a login" function = "managing user ________"

scenario = "Music plays while a game runs" ans = "Multitasking _______ CPU is shared"

scenario = "The OS checks a password" function = "providing system ________"

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A Scenario: music and game open

B OS function: multitasking

C Because: it loads a driver

Question 2

A Scenario: two apps open

B OS function: peripherals

C Because: it loads a driver

Question 3

A Scenario: enter a password

B OS function: multitasking

C Because: it checks the login

Question 4

A Scenario: save a document

B OS function: managing memory

C Because: it stores the file

Question 5

A Scenario: browser and music

B OS function: multitasking

C Both programs run together

D Because: it checks passwords

Answer Key

Matching a scenario to an operating system function

Section A: Quick Questions

A — Managing multitasking

A — Managing peripherals and drivers

A — Managing user accounts

B — Multitasking, because the OS shares CPU time between the programs

B — Peripherals and drivers, because the OS uses a driver to talk to the printer

Section B: Match the Pairs

Game and music player open at once → Managing multitasking, because the OS shares CPU time between the programs

Plug in a printer, OS loads its driver → Managing peripherals and drivers, because the OS needs the driver to talk to the device

Logging in is user accounts and security because the OS checks who you are → IF password = storedPassword THEN allowAccess

Two programs open at once is multitasking because the CPU is shared → giveCPUTime(game) giveCPUTime(music)

Typing a password to log in = managing memory → Checking a password is user accounts and security, not memory, because the OS is checking who the user is

Plugging in a printer = managing files → A new printer needs peripherals and drivers, not files, because the OS must load a driver to control the device

Section C: Definitions

scenario to function — Find what the OS is doing in a scenario, such as sharing the CPU, loading a driver or checking a password, then match it to one of its nine functions and explain with 'because'.

Section D: Fill in the Blanks

scenario = "Two programs open at once"
function = "multitasking"

scenario = "A printer is plugged in"
function = "managing peripherals and drivers"

scenario = "A new student gets a login"
function = "managing user accounts"

scenario = "Music plays while a game runs"
ans = "Multitasking because CPU is shared"

scenario = "The OS checks a password"
function = "providing system security"

Section E: Spot the Error

C — Two programs open at once is multitasking because the OS shares the CPU between them. Loading a driver belongs to managing peripherals, so the reason should be 'it shares the CPU'.

A — The scenario does not match the function. Loading a driver happens when a printer is plugged in, so line 1 should be 'Scenario: plug in a printer'.

B — Entering a password is logging in, which is the user accounts function (with security). Multitasking is about sharing the CPU, so line 2 should be 'OS function: user accounts'.

B — Saving a document means the OS is storing and organising a file, so the function is managing files. Managing memory is about RAM.

D — Running a browser and music together is multitasking because the OS shares the CPU. Checking passwords is a security or user account reason, so line 4 should say 'it shares the CPU'.