BPP Computer Science 2 — Questions and Answers
Question 1: What does 'OS' stand for in computing?
- Online System
- Optical Storage
- Operating System (Correct answer)
- Output Signal
Correct answer: Operating System
OS stands for Operating System, the software that manages all hardware and software resources of a computer.
Question 2: Which of the following is an output device?
- Mouse
- Scanner
- Microphone
- Monitor (Correct answer)
Correct answer: Monitor
A monitor is an output device that displays visual information produced by the computer for the user to view.
Question 3: What unit is used to measure computer storage?
- Watt
- Hertz
- Byte (Correct answer)
- Volt
Correct answer: Byte
Computer storage is measured in bytes, with larger units like kilobytes, megabytes, gigabytes, and terabytes used for bigger amounts.
Question 4: What does the 'Save' function in a program typically do?
- Deletes a file
- Prints the document
- Stores data permanently (Correct answer)
- Opens a new file
Correct answer: Stores data permanently
The Save function writes data from a program's working memory to permanent storage so it is not lost when the program closes.
Question 5: Which key is used to delete text to the left of the cursor?
- Delete
- Backspace (Correct answer)
- Escape
- Tab
Correct answer: Backspace
The Backspace key removes the character immediately to the left of the cursor in most text editing applications.
Question 6: What is the purpose of an antivirus program?
- Speed up the computer
- Create backups
- Detect and remove malware (Correct answer)
- Manage files
Correct answer: Detect and remove malware
Antivirus software scans a computer system to detect, quarantine, and remove malicious programs such as viruses and spyware.
BPP Computer Science 2
What does 'OS' stand for in computing?