A. radio waves
B. microwaves
C. infrared
D. all of the above
✅ The correct answer is option D.
Basic computer knowledge MCQs
372. What was the computer conceived by Babbage ?
A. Games
B. Donald Knuth
C. Arithmetic Machine
D. Analytical Engine
✅ The correct answer is option D.
373. You organise files by storing them in____________________?
A. lists
B. indexes
C. folders
D. archives
✅ The correct answer is option C.
374. A _______________ is a large and expensive computer capable of simultaneously processing data for hundreds or thousands of users ?
A. handheld computer
B. mainframe computer
C. personal computer
D. tablet computer
✅ The correct answer is option B.
375. Which device uses a handheld operation system ?
A. APDA
B. A personal computer
C. A laptop
D. A mainframe
✅ The correct answer is option A.
376. A list of protocols used by a system, one protocol per layer, is called___________________?
A. protocol architecture
B. protocol stack
C. protocol suit
D. none of these
✅ The correct answer is option B.
377. Whenever we have to give space between the two words while typing on a PC we have to press a key known as____________________?
A. Backspace
B. Shift
C. Escape
D. Space Bar
✅ The correct answer is option D.
378. Dynamic web page____________________?
A. is same every time whenever it displays
B. generates on demand by a program or a request from browser
C. both A and B
D. none of the above
✅ The correct answer is option B.
379. The first mechanical calculating machine was made by ________________________?
A. William Oughtred
B. Gottfried Leibnitz
C. Blaise Pascal
D. Charles Babbage
✅ The correct answer is option C.
380. E-mail is_____________________?
A. Loss-tolerant application
B. Bandwidth-sensitive application
C. Elastic application
D. None of these
✅ The correct answer is option C.