644. The computer translates the condition of each switch to a number. What number is represented by the OFF state?
A. -7
B. -3.75
C. 1
D. 0
✅ The correct answer is option D.
647. In computers, ‘.TMP’ extension refers usually to what kind of file?
A. Temporary file
B. Image file
C. Video file
D. Text file
✅ The correct answer is option A.
650. How many options does a binary choice offer?
A. None
B. One
C. Two
D. It depends on the amount of memory in the computer
✅ The correct answer is option C.
653. The first machine to successfully perform a long series of arithmetic and logical operations was:
A. ENIAC
B. Mark I
C. Analytic engine
D. UNIVAC-I
✅ The correct answer is option B.
656. Which is true for the digital computer?
A. It is less accurate than the analog computer
B. It represents the decimal numbers through a string of binary digits
C. It is used primarily in scientific applications
D. Both A and C
✅ The correct answer is option B.
659. A single bus structure is primarily found in
A. Main frames
B. Super computers
C. High performance machines
D. Mini-and micro-computers
✅ The correct answer is option D.
623. Which memory stores the values of variables.
A. SAM
B. ROM
C. RAM
D. PROM
✅ 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.
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.
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.