"To preform specific useful computing tasks, like word processing and calculation" is the correct answer. This is the whole purpose of system software. The third answer is some other type of software(third party software?) and the fourth answer is most likely a compiler. Those are the easiest to take off. The second could also work.
The two answers I would go with are the first and the second.
public class 4by4Square
{
public static void main(){
System.out.println("xxxx \nx x\nx x\nxxxx");
}
}
<h2><u>~CaptnCoderYankee</u></h2>
Answer: Could be subdivided into smaller and smaller units.
Explanation:
The continuous data are basically measured in the small units and can be easily subdivided into smaller parts without changing their actual meaning.
The continuous data also contain numeric value and can be divided into smaller and finer meaningful parts.
The continuous data can be measured according to the precision of the system. The size and volume are the example of the continuous data.
The website of a National Bike Museum would give you information about all different kinds of bikes.
A local Bike shop would likely be biased to try to get you to buy from them.
Answer) The website of a National Bike Museum
Answer:
The longest codeword that could possibly be for "n" symbol is n-1 bits.
Explanation:
From the given information:
Suppose we are to consider a set of frequencies
, for which f is a symbol for the length n. Therefore, the longest codeword that could possibly be for "n" symbol is n-1 bits.
However, during the encoding for "n" in conjunction with n-2, then the possibilities for n are; 
We can conclude that the longest codeword that could possibly be for "n" symbol is n-1 bits.