Operating system
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. What is an operating system?
2. Which of these is an operating system?
3. Which device would most likely run iOS?
4. Which job does the operating system do?
5. How does the operating system help you use a device?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1Windows, macOS, ChromeOS | AAn operating system is software, not a hardware chip. It manages the hardware and runs other software. | |
| 2Android, iOS | BOperating systems commonly used on laptops and desktop computers | |
| 3The operating system manages files and memory so programs have space to run | COS.showInterface(screen) | |
| 4The operating system provides the user interface so people can use the device | DWindows is not the OS for iPhones and iPads. Those devices use iOS. | |
| 5OS = a type of hardware chip | EOS.manage(files, memory) | |
| 6Windows runs on iPhones and iPads | FOperating systems that run on phones and tablets |
C
Definitions
operating system
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
The ________________ runs other software.
2.
Windows, macOS, ChromeOS, _______, iOS
3.
The OS manages files and ______.
4.
The OS provides the user _________.
5.
The OS runs apps and manages ________.
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
software_type = "hardware"
B
os = "Windows"
C
print(os, "is", software_type)
Question 2
A
phones = ["Android", "iOS"]
B
laptops = ["Windows", "iOS"]
C
chromebook = "ChromeOS"
D
print(phones, laptops)
Question 3
A
memory = 8
B
app_size = 3
C
memory = memory - app_size
D
print("Memory left:", app_size)
Question 4
A
def show_interface():
B
print("Icons and menus")
C
show_interface
Question 5
A
files = ["a.txt", "b.png"]
B
files.add("c.doc")
C
print(len(files))
Answer Key
Operating system
Section A: Quick Questions
Q1
A — Software that manages a device's hardware and runs other software
Q2
B — Android
Q3
A — An iPhone
Q4
B — Manages files and memory
Q5
A — It provides the user interface, such as icons, windows and menus
Section B: Match the Pairs
Q1
Windows, macOS, ChromeOS → Operating systems commonly used on laptops and desktop computers
Q2
Android, iOS → Operating systems that run on phones and tablets
Q3
The operating system manages files and memory so programs have space to run → OS.manage(files, memory)
Q4
The operating system provides the user interface so people can use the device → OS.showInterface(screen)
Q5
OS = a type of hardware chip → An operating system is software, not a hardware chip. It manages the hardware and runs other software.
Q6
Windows runs on iPhones and iPads → Windows is not the OS for iPhones and iPads. Those devices use iOS.
Section C: Definitions
Q1
operating system — The software that manages a device's hardware and runs other software, like Windows, macOS, ChromeOS, Android or iOS. It handles files and memory and gives you the user interface.Section D: Fill in the Blanks
Q1
The operating system runs other software.Q2
Windows, macOS, ChromeOS, Android, iOSQ3
The OS manages files and memory.Q4
The OS provides the user interface.Q5
The OS runs apps and manages hardware.Section E: Spot the Error
Q1
A — An operating system is software, not hardware. The line should be software_type = "system" (system software).
Q2
B — iOS runs on iPhones and iPads, not laptops. Laptops run Windows or macOS, so the list should be ["Windows", "macOS"].
Q3
D — The OS manages memory, so the program should print the memory left, which is the memory variable, not the size of the app.
Q4
C — Without brackets the function is never called, so the user interface is never shown. It should be show_interface().
Q5
B — Lists have no add() method. To add a new file to the list, use files.append("c.doc").