The motherboard contains the central electronic components of the computer.
Answer:

Explanation:
First, represent the field for annual revenue with AnnualRevenue
From the question, we understand that this field must be greater than 1000000 before a certain action can be performed.
Base on the given condition, the formula that triggers this action is: 
<em>Further explanation is in the attachment</em>
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<em>From the attachment, we have that:</em>
If the condition is true, the checkbox be ticked
However, if the condition is false; the checkbox remain unchanged because no specific action is stated for this, in the question.
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A desktop computer is a personal computer designed for regular use at a single location on or near a desk due to its size and power requirements.
Answer:
a. daily
Explanation:
A webpage gets a new modification date whenever any change is made. This is irrespective of whether the change is large or small, significant or insignificant. Any update to the webpage will change its modification date. But this change will not be carried out automatically everyday unless an actual modification is carried out on that day.Otherwise it will continue to carry the modification date corresponding to the day of last update.