Question 1

1. Which component of the CPU is responsible for performing mathematical calculations like addition and logic operations?

A) ALU (Arithmetic Logic Unit)B) CU (Control Unit)C) RegistersD) RAM

Answer

✓ Correct Answer: Option A

Explanation: The ALU performs all arithmetic ($+, -, \times, \div$) and logical comparisons (<, >, =).

Question 2

2. Where is the BIOS (Basic Input/Output System) permanently stored?

A) Hard DiskB) ROM ChipC) RAMD) Cache

Question 3

3. Which type of memory acts as a high-speed buffer between the CPU and the Main Memory?

A) Secondary MemoryB) Virtual MemoryC) Cache MemoryD) Optical Disk

Answer

✓ Correct Answer: Option C

Explanation: Cache memory reduces the average time to access data from the Main Memory (RAM).

Question 4

4. What is the full form of CPU?

A) Central Processing UnitB) Control Process UnitC) Common Power UnitD) Computer Primary Unit

Answer

✓ Correct Answer: Option A

Explanation: The CPU is often referred to as the "brain" of the computer.

Question 5

5. A 32-bit system can address up to how much RAM?

A) 2 GBB) 8 GBC) 16 GBD) 4 GB

Answer

✓ Correct Answer: Option D

Explanation: Calculation: $2^{32} bytes = 4,294,967,296 bytes \approx 4 GB$.

Question 6

6. Which of the following is an Operating System?

A) MS WordB) Windows 11C) Google ChromeD) Adobe Reader

Answer

✓ Correct Answer: Option B

Explanation: Windows 11 is system software that manages hardware and software resources.

Question 7

7. Which of these is an input device?

A) MonitorB) PrinterC) ScannerD) Speaker

Answer

✓ Correct Answer: Option C

Explanation: A Scanner is used to input physical documents into digital format.

Question 8

8. How many bits are there in 1 Byte?

A) 8B) 4C) 1024D) 16

Answer

✓ Correct Answer: Option A

Explanation: By definition, 1 Byte = 8 bits. Also, 1 Nibble = 4 bits.

Question 9

9. Which software is used to protect a computer from viruses?

A) CompilerB) Device DriverC) BrowserD) Antivirus

Answer

✓ Correct Answer: Option D

Explanation: Antivirus software (e.g., Norton, McAfee) detects and removes malicious software.

Question 10

10. Physical components of a computer are called:

A) SoftwareB) HardwareC) FirmwareD) Malware

Answer

✓ Correct Answer: Option B

Explanation: Hardware refers to the tangible parts like the mouse, keyboard, and motherboard.

Question 11

11. What is the default file extension for MS Word 2019?

A) .docxB) .txtC) .xlsxD) .pptx

Answer

✓ Correct Answer: Option A

Explanation: The ".docx" extension is the standard for Word documents since the 2007 version.

Question 12

12. In MS Excel, every formula must begin with which symbol?

A) +B) @C) =D) \#

Answer

✓ Correct Answer: Option C

Explanation: Example: = SUM(A1:A5). The "=$ tells Excel to treat the cell contents as a calculation.

Question 13

13. Which shortcut key is used to start a PowerPoint slideshow from the first slide?

A) F2B) F5C) Ctrl + SD) Shift + F5

Answer

✓ Correct Answer: Option B

Explanation: F5 starts the presentation from Slide 1. Shift + F5 starts it from the current slide.

Question 14

14. In MS Access, a unique field that identifies each record in a table is called a:

A) Primary KeyB) Foreign KeyC) QueryD) Report

Answer

✓ Correct Answer: Option A

Explanation: A Primary Key ensures that no two records in a table are identical.

Question 15

15. What is the intersection of a row and a column in MS Excel called?

A) GridB) BoxC) WorksheetD) Cell

Answer

✓ Correct Answer: Option D

Explanation: A Cell is the basic unit of an Excel sheet, named by Column Letter and Row Number (e.g., B10).

Question 16

16. Which feature in MS Word allows you to send the same letter to multiple recipients?

A) MacrosB) Mail MergeC) Cross-referenceD) Thesaurus

Answer

✓ Correct Answer: Option B

Explanation: Mail Merge combines a document template with a data source (like an Excel list).

Question 17

17. Which MS Office tool is best suited for creating professional presentations?

A) WordB) ExcelC) PowerPointD) Outlook

Answer

✓ Correct Answer: Option C

Explanation: PowerPoint is designed for visual presentations using slides.

Question 18

18. Portrait and Landscape are types of:

A) Page OrientationB) Paper SizeC) Page MarginD) Font Style

Answer

✓ Correct Answer: Option A

Explanation: Orientation refers to whether the document is vertical (Portrait) or horizontal (Landscape).

Question 19

19. Which function in Excel is used to add all numbers in a range?

A) ADD()B) SUM()C) TOTAL()D) COUNT()

Answer

✓ Correct Answer: Option B

Question 20

20. What is the shortcut key for 'Undo' in MS Office?

A) Ctrl + YB) Ctrl + XC) Ctrl + ZD) Ctrl + U

Answer

✓ Correct Answer: Option C

Accepted Answer

✓ Correct Answer: Option B

Explanation: BIOS is firmware stored on a Non-Volatile ROM (Read-Only Memory) chip on the motherboard.

Competitive Exams : Computer Awareness - Mix (Set 1)

1. Which component of the CPU is responsible for performing mathematical calculations like addition and logic operations?

2. Where is the BIOS (Basic Input/Output System) permanently stored?

3. Which type of memory acts as a high-speed buffer between the CPU and the Main Memory?

4. What is the full form of CPU?

5. A 32-bit system can address up to how much RAM?

6. Which of the following is an Operating System?

7. Which of these is an input device?

8. How many bits are there in 1 Byte?

9. Which software is used to protect a computer from viruses?

10. Physical components of a computer are called:

11. What is the default file extension for MS Word 2019?

12. In MS Excel, every formula must begin with which symbol?

13. Which shortcut key is used to start a PowerPoint slideshow from the first slide?

14. In MS Access, a unique field that identifies each record in a table is called a:

15. What is the intersection of a row and a column in MS Excel called?

16. Which feature in MS Word allows you to send the same letter to multiple recipients?

17. Which MS Office tool is best suited for creating professional presentations?

18. Portrait and Landscape are types of:

19. Which function in Excel is used to add all numbers in a range?

20. What is the shortcut key for 'Undo' in MS Office?