395. What type of memory is not directly addressable by the CPU and requires special software called EMS (expanded memory specification)?
A. Extended
B. Expanded
C. Base
D. Conventional
✅ The correct answer is option B.
397. The computer code for the interchange of information between terminals is
A. ASCII
B. BCD
C. EBCDIC
D. All of the above
✅ The correct answer is option A.
399. If you want to secure a message, use a(n):
A. Cryptology source
B. Encryption key
C. Encryption software package
D. Cryptosystem
✅ The correct answer is option D.
401. Who invented the supercomputer?
A. Charles Babbage
B. JH Van Tassell
C. Charles Ginsberg
D. Seymour Cray
✅ The correct answer is option D.
403. ________ keys are present on the top row of the keyboard.
A. Function
B. Type writer
C. Numeric
D. Navigation
✅ The correct answer is option A.
405. How many operations per second can perform by a modern fast mainframe digital computer.
A. 1000
B. 100,000
C. 10,00,000
D. 1,00,00,00,000
✅ The correct answer is option D.
407. When used with I/O devices, the term intelligent implies
A. a color output capability
B. speech processing capability
C. high speed printing capability
D. feature to support offline and online tasks
✅ The correct answer is option D.
409. What is meant by quad-density (QD) diskette?
A. It is double-sided disk
B. It is double density disk
C. It has double the number of tracks per inch
D. All of the above
✅ The correct answer is option D.
412. A class of random access memory that requires periodic servicing in order for the contents to remain valid is
A. Static RAM
B. Dynamic RAM
C. PROM
D. EPROM
✅ The correct answer is option B.
415. Which of the following is used to insure the high quality of computer output?
A. computer output microfilm
B. output controls
C. voice output systems
D. liquid crystal display
✅ The correct answer is option B.