MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
D. All of these
Explanation
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR. The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator. The following illustration and table show the circuit symbol and logic combinations for an AND gate.
Correct answer
D. UNIVAC
Explanation
The UNIVAC I (UNIVersal Automatic Computer I) was the first commercial computer produced in the United States. It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC.
Correct answer
A. Hacker
Explanation
Hacker is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Content-addressable Memory
Explanation
Content-addressable memory (CAM) is a special type of computer memory used in certain very-highspeed searching applications. It is also known as associative memory.
Correct answer
B. title slide
Explanation
title slide is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. VGA
Explanation
VGA is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Output Units
Explanation
Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. The devices are usually used for display, projection, or for physical reproduction. Monitors and printers are two of the most commonly-known output devices used with a computer.
Correct answer
C. UPS
Explanation
UPS is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. optical disc
Explanation
optical disc is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. motherboard
Explanation
motherboard is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.