World Science and Technology – Exercise – 4

161. Made from a variety of materials, such as carbon, which inhibits the flow of current…?

(a) Choke
(b) Inductor
(c) Resistor
(d) Capacitor

Answer
Answer : (c)
Explanation
Explanation : So named because it resists (or inhibits) the flow of current. Let us discuss.
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162. Changing computer language of 1’s and 0’s to characters that a person can understand is…

(a) Highlight
(b) Clip art
(c) Decode
(d) Execute

Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
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163. Experts say the healthiest way to view a computer monitor is by…

(a) Placing it 18 to 30 inches away from your eyes
(b) Viewing from a darkened room
(c) Adjusting the screen for maximum contrast
(d) Using special glasses that filter out UV rays

Answer
Answer : (a)
Explanation
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164. Who built the world’s first binary digit computer: Z1…?

(a) Konrad Zuse
(b) Ken Thompson
(c) Alan Turing
(d) George Boole

Answer
Answer : (a)
Explanation
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165. The Internet was developed in the…

(a) Early 1990s
(b) Late 1980s
(c) Early 1970s
(d) Late 1960s

Answer
Answer : (d)
Explanation
Explanation : As surprising as its age is, the Internet was born from the U.S. military’s need to construct a decentralized computer network that could withstand a nuclear war. The network was used and refined by universities throughout the 1970s and 1980s, but it wasn’t until 1992 that the Internet was made available to the general public. Let us discuss.
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