WorksheetsÔn Tập Hệ Điều Hành
Total questions: 56
Worksheet time: 28mins
What data storage does the operating system manage?
CPU
Memory or peripheral devices
File management and directory management
Other answers
What is an operating system?
Software to run applications
Intermediate device to run applications
Environment to run applications
Other answers
What is an important development step of personal computer operating systems?
Plug & play mechanism
User-friendly interface
Having an operating system
Other answers
What is the function of the plug & play mechanism?
Helps the operating system recognize peripheral devices upon startup
Supports automatic installation of driver programs
Both of the above answers are correct
Both of the above answers are incorrect
How does the graphical interface represent objects?
Numbers
Text
Images
Other answers
What is a basic component of the graphical interface?
Window
Icon
Mouse
All three answers are correct
What is a window?
Allows viewing objects in graphical form
Means to designate a working point on the screen
A rectangular area on the screen for an application
Other answers
LINUX originates from which operating system?
Windows
mac OS
DOS
UNIX
What are mobile devices typically equipped with?
Touch screens
Virtual keyboards
Multiple sensors
All three answers are correct
How can I quickly access application software?
Taskbar
Start button
Both of the above answers are correct
Both of the above answers are incorrect
How can I use the File Explorer utility in Windows?
Quickly access application software
Manage files and folders
Observe the status of the display
Other answers
What can you use the File Explorer utility of Windows for?
Quick access to application software
Manage files and folders
Observe display status
Other answers
To display the command selection menu that can be performed with a file, what must you do?
Click the left mouse button
Double-click the mouse
Right-click the mouse
Other answers
What is a hard disk?
A metal disk containing software
A type of metal disk coated with magnetic material
A metal disk containing utilities
Other answers
Which disk does the merge function affect?
CD
DVD
Floppy disk
Other answers
What utility does a mobile device provide to users?
Contact management
Messaging
Timer
All of the above are correct
In the early days of computers without operating systems, what did users have to do?
Manually load programs into memory
Download available programs from the Internet
Transfer programs from a memory card into memory
Other answers
Nowadays, many devices are controlled by microprocessors, and programs are?
Pre-installed in ROM
Pre-installed in RAM
Pre-installed in memory cards
All are correct
What is an operating system?
Information processing device
An intermediary environment that helps application software exploit hardware
A place that provides computer control services
Other answers
For a computer to run directly, what must happen?
The program is translated into programming language
The program is translated into source code
The program is translated into machine instruction
Other answers
What is the reason for the emergence of open-source software?
Not sharing source code
Together
What is the reason for the emergence of open source software?
Not sharing source code
Collaboratively creating source code
Sharing source code for joint development
Other answers
What is commercial software?
Software for sale
Closed source type
Both of the above answers are correct
Both of the above answers are incorrect
Which of the following is commercial software?
Inkscape
GIMP
Microsoft Word
Programming environment for Python language
What are the characteristics of free software?
It is free software
It can be used freely without permission
It can be in machine code or source code form
All three answers above are correct
What is open source software?
Software provided with source code for users to modify, improve, develop, and redistribute according to regulations
Open source software is free
Open source software is not guaranteed
All three answers above are correct
Most commercial software is sold in what form?
Source code
Machine code
Code
Other answers
What does the GNU GPL public license guarantee?
User's access rights to source code for use, modification, or redistribution
Author's exemption from consequences of software use
Authors' rights to be named in development
All three answers above are correct
What is the CPU made of?
Arithmetic and logic unit
Control unit
Both of the above answers are correct
Both of the above answers are incorrect
Which component coordinates the devices of the computer, ensuring it executes the program correctly?
Control unit
Arithmetic and logic unit
Control unit
Memory
Which component coordinates the devices of the computer, ensuring that the computer executes the program correctly?
Controller
Arithmetic and Logic Unit
Controller
ROM
What is the purpose of the clock frequency?
To generate voltage pulses
To evaluate the speed of the CPU
To coordinate the devices of the computer, ensuring that the computer executes the program correctly
To perform all arithmetic and logic operations in the computer
What is a register?
A special memory area used to temporarily store instructions and data being processed
A special memory area used to store instructions and data being processed
A data processing area
Other answers
What is RAM?
Writable memory
Used to temporarily store data while running programs
Cannot store temporary data for long
All three answers above are correct
What is ROM?
Memory written by specialized means
Application programs can only be read and not written or erased
Does not require a power source
All three answers above are correct
Where can external memory be placed?
Outside the machine body
Inside the machine body
Both answers above are correct
Both answers above are incorrect
Which of the following is external memory?
Floppy disk
Solid state disk
Optical disk
All three answers above are correct
What do input devices allow?
To transfer information from the computer to the outside
To input data into the computer
To exchange information in both directions
All three answers above are incorrect
What are output devices?
To transfer information from the computer to the outside
To input data into the computer
To exchange information in both directions
All three answers above are incorrect
Which of the following is an input device?
(a)
What are output devices?
Transfer information from the computer to the outside
Input data into the computer
Exchange information in both directions
All of the above answers are incorrect
Which of the following is an input device?
Keyboard
Mouse
Barcode reader
All of the above answers are correct
Which is an output device?
Monitor
Printer
Projector
All of the above answers are correct
Which device is both an input and output device?
Printer
Scanner
USB
Projector
What is the most common output device?
Printer
Speaker
Monitor
Projector
Screen resolution is represented by?
The number of pixels horizontally and vertically on the screen
The length of the diagonal on the screen
Images on the screen are created continuously
The time required to change the color of a pixel
What is refresh rate?
The number of pixels horizontally and vertically on the screen
The length of the diagonal on the screen
Images on the screen are created continuously
The time required to change the color of a pixel
What is response time?
The number of pixels horizontally and vertically on the screen
The length of the diagonal on the screen
Images on the screen are created continuously
The time required to change the color of a pixel
Screen size is measured by?
The number of pixels horizontally and vertically on the screen
The length of the diagonal on the screen
Images on the screen are created continuously
The time required to change the color of a pixel
Dot matrix printer uses?
A row of pins striking an ink ribbon to leave a mark on paper
Uses laser beams to create voltage changes on the surface of a drum
What is a dot matrix printer used for?
A row of pins strikes an ink ribbon to leave a mark on paper
Uses a laser beam to create a voltage change on the surface of a drum similar to the image to be printed
Sprays tiny droplets of water-based ink to create an image
Prints on thermal paper, the heated area turns black
What is a laser printer used for?
A row of pins strikes an ink ribbon to leave a mark on paper
Uses a laser beam to create a voltage change on the surface of a drum similar to the image to be printed
Sprays tiny droplets of water-based ink to create an image
Prints on thermal paper, the heated area turns black
What is an inkjet printer used for?
A row of pins strikes an ink ribbon to leave a mark on paper
Uses a laser beam to create a voltage change on the surface of a drum similar to the image to be printed
Sprays tiny droplets of water-based ink to create an image
Prints on thermal paper, the heated area turns black
How does a thermal printer print?
A row of pins strikes an ink ribbon to leave a mark on paper
Uses a laser beam to create a voltage change on the surface of a drum similar to the image to be printed
Sprays tiny droplets of water-based ink to create an image
Prints on thermal paper, the heated area turns black
Which port is used only for transmitting images?
HDMI
VGA
USB
Network
Which port can transmit both audio and video simultaneously?
VGA
USB
Network
HDMI
