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Salsk061 [2.6K]
3 years ago
15

Why do computers have both main memory and secondary storage?

Computers and Technology
1 answer:
VladimirAG [237]3 years ago
3 0
Main memory is RAM (random access memory) that is so programs can save data. Without ram, whenever you would write something in a text document it would delete it. Secondary storage is so you can save the file and go back to it.
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Which one of the following media is most resistant to EMI?
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Answer:

D - Fiber-optic Cables

Explanation:

Electromagnetic interference affects cables made from different metals and can corrupt the data running through them. However, Fiber-optic cables are constructed from glass (non-metallic) and transmit pulses of light as signals to transfer data, this means that the cables are most resistant and not susceptible to EMI.

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Assume you're using a three button mouse. to access shortcut menus, you would
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3 years ago
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What is printed by the following program? var isRaining = false; var isCloudy = false; var isSunny = !isRaining &amp;&amp; !isCl
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Answer:

The output to this given question is "Is it warm: true".

Explanation:

In this question firstly two-variable defines that are isRaining and isCloudy. In those variables assign false value. Then we define another variable that is isSunny. In isSunny variable, we check condition that is if variable isRaining not AND (logical gate) variable isCloudy not equal to isSunny. The AND logical gate is used to check that both condition is true or not. Then we define another variable that is isWarm. In this variable, we check condition if isSunny OR (logical operator) isSummer is true. The OR operator is used to check in both value if one condition will true it will print true. At the last will print the value.

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