621. Which most popular input device used today for interactive processing & for the on line entry of data for batch processing.
A. Mouse
B. Magnetic disk
C. Visual display terminal
D. Card punch
✅ The correct answer is option C.
Basics of Computer Science MCQs
Strengthen your fundamental knowledge with our Basics of Computer Science MCQs with answers and explanations. Our collection covers key topics such as computer fundamentals, hardware and software, operating systems, networking basics, databases, programming concepts, and internet technologies. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, and IT job assessments. Practice online to improve your understanding, enhance problem-solving skills, and excel in exams with our updated Basics of Computer Science MCQs
622. A collection of 8 bit is called –
A. Byte
B. Record
C. Word
D. Nibble
✅ The correct answer is option A.
623. Which memory stores the values of variables.
A. SAM
B. ROM
C. RAM
D. PROM
✅ The correct answer is option C.
624. The time taken for the read/write head to move to the correct track on the magnetic disk is called
A. epoch delay
B. latency delay
C. seek time
D. approach time
✅ The correct answer is option C.
625. What is the number of bit patterns provided by a 7-bit code?
A. 256
B. 128
C. 64
D. 512
✅ The correct answer is option B.
626. The most important or powerful computer in a typical network is _____
A. Desktop
B. Network client
C. Network server
D. Network station
✅ The correct answer is option C.
627. A micro processor chip used in a PC system
A. Performs the arithmetic-logic and control functions
B. Is the only chip cound in most PC models
C. Almost always operates on by-bits of data at a time
D. Performs the primary storage function
✅ The correct answer is option A.
628. A device that converts one type of signal into another is called
A. Modem
B. Transducer
C. Punched paper tape
D. Punched card
✅ The correct answer is option B.
629. What is the alternative name for a diskette?
A. Floppy disk
B. Hard disk
C. Flexible disk
D. Winchester disk
✅ The correct answer is option A.
630. In processing cheques which of the following I/O techniques have banks traditionally followed?
A. OCR (Optical Character Recognition)
B. MICR (Magnetic Ink Character Recognition)
C. Barcode
D. VRT (Volume Rendering Technique)
✅ The correct answer is option B.