260. What is the most common tool used to restrict access to a computer system?
A. User log in
B. Passwords
C. Computer keys
D. Access-control software
✅ The correct answer is option B.
262. A type of line printer that uses an embossed steel band to form the letters printed on the paper is
A. Golf ball printer
B. Dot-matrix printer
C. Laser printer
D. Band printer
✅ The correct answer is option D.
264. Linux is a(n) …….. operating system
A. Open-source
B. Microsoft
C. Windows
D. Mac
✅ The correct answer is option A.
266. Which was the world’s first minicomputer and when was it introduced?
A. PDP-1, 1959
B. 1MB System/36, 1960
C. PDP-11 1961
D. VAX 11/780, 1962
✅ The correct answer is option A.
231. A number that is used to control the form of another number is known as
A. Map
B. Mask
C. Mamtossa
D. Marker
✅ The correct answer is option B.
234. A collection of 8 bits is called
A. Byte
B. Record
C. Word
D. Nibble
✅ The correct answer is option A.
237. Which of the following registers hold the information before it goes to the decoder
A. control register
B. data register
C. accumulator
D. address register
✅ The correct answer is option B.
240. A device or system not directly connected to the CPU is
A. On-line
B. Keyboard
C. Memory
D. Off-line
✅ The correct answer is option D.
243. What is the name of the computer which was first used for programming and playing of music?
A. ELLIAC
B. ENIAC
C. UNIVAC
D. All of the above
✅ The correct answer is option A.
246. The binary equivalent of the Octal number 13.54 is
A. 1011.1011
B. 1101.111
C. 1001.111
D. All of the above
✅ The correct answer is option A.