1921. Which device is primarily used to enter text into a computer?
✅ B. Keyboard
a: Monitor | b: Keyboard | c: Speaker | d: Projector Read more
Computer Science MCQs – Page 97
1922. What is the binary representation of decimal number 29?
✅ C. 11101
a: 1d | b: 11110 | c: 11101 | d: 11100 Read more
1923. Which device displays visual output from a computer?
✅ B. Monitor
a: Mouse | b: Monitor | c: Scanner | d: Microphone Read more
1924. What is the main purpose of an operating system?
✅ C. To manage hardware and software resources
a: To increase monitor size | b: To create electricity | c: To manage hardware and software resources | d: To replace all applications Read more
1925. Which device is primarily used to enter text into a computer?
✅ B. Keyboard
a: Monitor | b: Keyboard | c: Speaker | d: Projector Read more
1926. What is the binary representation of decimal number 28?
✅ C. 11100
a: 11011 | b: 11101 | c: 11100 | d: 1c Read more
1927. Which file extension is commonly associated with a PDF document?
✅ D. .pdf
a: .exe | b: .mp3 | c: .xlsx | d: .pdf Read more
1928. What is the main purpose of an operating system?
✅ C. To manage hardware and software resources
a: To increase monitor size | b: To create electricity | c: To manage hardware and software resources | d: To replace all applications Read more
1929. What is the binary representation of decimal number 27?
✅ A. 11011
a: 11011 | b: 11100 | c: 11010 | d: 1b Read more
1930. Which protocol is commonly used to load secure websites?
✅ B. HTTPS
a: Telnet only | b: HTTPS | c: SMTP | d: FTP only Read more
1931. What is the binary representation of decimal number 26?
✅ B. 11010
a: 1a | b: 11010 | c: 11001 | d: 11011 Read more
1932. Which file extension is commonly associated with a PDF document?
✅ D. .pdf
a: .exe | b: .mp3 | c: .xlsx | d: .pdf Read more
1933. What does URL stand for?
✅ B. Uniform Resource Locator
a: Universal Record Link | b: Uniform Resource Locator | c: User Reference List | d: Unified Routing Language Read more
1934. Which protocol is commonly used to load secure websites?
✅ B. HTTPS
a: Telnet only | b: HTTPS | c: SMTP | d: FTP only Read more
1935. What is the binary representation of decimal number 25?
✅ B. 11001
a: 11010 | b: 11001 | c: 11000 | d: 19 Read more
1936. Which type of memory is volatile?
✅ A. RAM
a: RAM | b: Blu-ray disc | c: SSD when unpowered | d: ROM Read more
1937. What does URL stand for?
✅ B. Uniform Resource Locator
a: Universal Record Link | b: Uniform Resource Locator | c: User Reference List | d: Unified Routing Language Read more
1938. What is the binary representation of decimal number 24?
✅ D. 11000
a: 10111 | b: 18 | c: 11001 | d: 11000 Read more
1939. Which component performs arithmetic and logical operations in a CPU?
✅ C. Arithmetic Logic Unit (ALU)
a: Hard drive | b: Power supply | c: Arithmetic Logic Unit (ALU) | d: Control unit Read more
1940. Which type of memory is volatile?
✅ A. RAM
a: RAM | b: Blu-ray disc | c: SSD when unpowered | d: ROM Read more