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(f) Many of the programming brains has shifted their focus from Proprietary software 4
to Free and Open software. Mention any two freedom offered by Free software.
Going with the flow, Sandhya has downloaded a software from the internet
which can be freely distributed and used by anyone but the source code is not
available. Is it Freeware or free software? Justify your answer as well.
Similarly Premjith wants to install a software on his system that can help him to
create, edit and save office documents but he does not want to purchase the
software. Suggest him a good software for the same.

Ans: Any two freedom offered by Free software are:
The freedom to run the program for any purpose.
The freedom to redistribute copies.
(1 Mark for each correct freedom)

It is Freeware as freeware software are freely distributed and used by anyone
but the source code is not available while source will be available with Free
software.
(1 Mark for correct answer)

Openoffice.org
(1 Mark for correct answer)

2. (a) Ruby, a class XI student has just started learning java programming. Help her in 4
the following:
i. Explain her the concept of variable and data type by suitable example.
ii. Help her in understanding the difference between assignment operator and
comparison operator with the help of appropriate example.

Ans: i. Variables are named storage location to store values temporarily which can be
changed during program execution.

Data type states the way the values of that type are stored, the operations that
can be done on that type and the range for that type.

For example:
int marks;
In the above statement, int is the data type and marks is the name of variable
which store values temporarily.

(1 Mark for correct answer)
(1 Mark for correct explanations)

ii. Assignment operator (=) is used to assign any value in a variable/constant
while comparison operator (= =) is used to compare values.

For example:
int marks=90;
In the above statement value 90 is assigned to the variable named marks.

if(marks==40)
jTextField1.setText(“Just Pass”);
In the above if statement, value of marks is being compared with 40.

(1 Mark for correct answer)
(1 Mark for correct explanations)

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