34. Which of the following is responsible for coordinating various operations using timing signals?
A. Arithmetic-logic Unit
B. Control unit
C. Memory unit
D. Input/Output unit
✅ The correct answer is option B.
36. The original ASCII code used _____ bits of each byte, reserving that last bit for error checking.
A. 5
B. 6
C. 7
D. 8
✅ The correct answer is option C.
38. A card on the top of pack of cards containing information about the cards in the pack is
A. Punched card
B. Card punch
C. Reader card
D. Punched paper tape
✅ The correct answer is option C.
1. The ………… operating system was initially created in the early 1970s at AT & T’s Bell Labs.
A. Linux
B. DOS
C. Unix
D. GNU
✅ The correct answer is option C.
4. Where does a computer add and compare data?
A. Hard disk
B. Floppy disk
C. CPU chip
D. Memory chip
✅ The correct answer is option C.
7. For creating a document, you select …….. option at File Menu.
A. Open
B. Close
C. New
D. Save
✅ The correct answer is option C.
10. No computer can do anything without a
A. program
B. memory
C. chip
D. output device
✅ The correct answer is option A.
15. The basic input/output system (BIOS) is storage in-
A. RAM
B. ROM
C. The CPU
D. The hard drive
✅ The correct answer is option B.
18. What is the standard code the computer industry created to represent characters?
A. DASI
B. ASSH
C. ASCII
D. BASCII
✅ The correct answer is option C.
21. The least expensive OCR units can read
A. hand printed numbers
B. machine printed numbers
C. marks
D. handwriting
✅ The correct answer is option C.