Q8-12.
d
Answer
Explanation
Open source software is software that publishes its source code free of change, and can be
modified or redistributed.
Q8-13.
b
Answer
Explanation
Open source software is a type of software in which the creator has published the source code
over the Internet free of charge, enabling anyone to modify or redistribute the software without infringing on copyrights.
Q8-14.
d
Answer
Explanation
A mouse is a device for movin g a cursor either by rotating a ball, or using reflected light to
specify the direction and distance of cursor movement.
Q8-15.
a
Answer
Explanation
Since the disk spins clockwise, the portion on top (outlined with a dotted line) spins in the
following order: 1→6→5→4→3→2→1. If the spotlight is set to flash every five (5) seconds,
the numbers are illuminated in the following order: 1→2→3→4→5→6.
Chapter 9 Technology element
Q9-1.
d
Answer
Explanation
A radio button is used to make a single selection from multiple items. When a different item
is selected, it automatically deselects the previously selected item.
Q9-2.
d
Answer
Explanation
If there are not too many types of data and the content of the data is fixed, then selecting from
a list of options is efficient. This method includes using check boxes, radio buttons, or list
boxes.
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