Answer:
1. Numeric variable:
A variable which can store numeric value is called numeric variable.
e.g.
A=12
pi=3.14
c=79.89
2. String variable:
A variable which can store string variable is called String variable. String is a array of character enclosed within the double inverted comma.
e.g.
N$="ram"
Place$="Kirtipur Kathmandu"
note that a string variable ends with $
Explanation:
A variable is a quantity which can store value in computer memory. A variable is also a quantity whose value changes during the execution of a program. Like in mathematics a variable holds certain value Just in QBASIC; it is a placeholder for storing value in computer memory
Answer:
data source
Explanation:
The main aim of a data source is for the gathering of all necessary information that is needed to access a data. Since he has used the information to create a pie chart, this means that some data were used for the creation of this pie chart. Hence the information used for the creation of the pie chart is the data source for the information illustrated on the pie chart.
Keyboard-Input
Mouse-Input
<u></u>Monitor-Output
Speakers-Output
Printer-Output
Hard Drive<span>-Output</span>
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