By default, Word 2011 sets page margins at 1 inch from the top and bottom of the page, and 1.5 inches from the left and right sides of the page.

Which of the following helps a computer to control itself to operate efficiently?

A. computer hardware B. application programs C. system control software D. operating system

Identify and correct the errors in each of the following. [Note: There may be more than one error in each piece of code.]

a. ``` if ( age >= 65 ); document.writeln( "Age greater than or equal to 65" ); else document.writeln( "Age is less than 65 )"; ``` b. ``` var x = 1, total; while ( x <= 10 ) { total += x; ++x; } ``` c. ``` While ( x <= 100 ) total += x; ++x; ``` d. ``` while ( y > 0 ) { document.writeln( y ); ++y; ```