Answer:
B. Monitor backlighting
Explanation:
The computer system is a machine that can digitally receive input, process the inputted data and display and save results. The computer system is a physical system driven by a software component.
The computer hardware components are classified as input unit or devices, output unit, memory and storage unit, and processing unit. The screen is an output unit of the computer system, it displays the output or result of the processed data.
The power supply to the screen, in this context, is not faulty due to the other screen used in testing the supply and input connectors. The back light on the screen has failed and that is why the brightness can not be adjusted.
Answer:
-occurs at the intersection of columns and rows
-is a single unit for entering data on a spreadsheet
-is located according to its cell reference or cell address
Explanation:
A cell is a box in a spreadsheet program that contains information and each cell is identified using a cell reference that indicates the colum letter followed by the row number where the cell is located. So, according to this, the characteristics of a cell in a spreadsheet software are:
-occurs at the intersection of columns and rows
-is a single unit for entering data on a spreadsheet
-is located according to its cell reference or cell address
1.)
<span>((i <= n) && (a[i] == 0)) || (((i >= n) && (a[i-1] == 0))) </span>
<span>The expression will be true IF the first part is true, or if the first part is false and the second part is true. This is because || uses "short circuit" evaluation. If the first term is true, then the second term is *never even evaluated*. </span>
<span>For || the expression is true if *either* part is true, and for && the expression is true only if *both* parts are true. </span>
<span>a.) (i <= n) || (i >= n) </span>
<span>This means that either, or both, of these terms is true. This isn't sufficient to make the original term true. </span>
<span>b.) (a[i] == 0) && (a[i-1] == 0) </span>
<span>This means that both of these terms are true. We substitute. </span>
<span>((i <= n) && true) || (((i >= n) && true)) </span>
<span>Remember that && is true only if both parts are true. So if you have x && true, then the truth depends entirely on x. Thus x && true is the same as just x. The above predicate reduces to: </span>
<span>(i <= n) || (i >= n) </span>
<span>This is clearly always true. </span>
Answer:
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