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Worksheet 1
(Based on chapters 1 to 4)
A. Give two examples of each of the following:
1. Operating System - ……………………………… ………………………………
2. Mathematical Functions - ……………………………… ………………………………
3. Symbols used in flowchart - ……………………………… ………………………………
4. Keywords of Java - ……………………………… ………………………………
B. Write the full forms of the following:
1. CUI - ……………………………………………………………………………………………………………..
2. GUI - ……………………………………………………………………………………………………………..
3. WORA - ……………………………………………………………………………………………………………..
4. IDE - ……………………………………………………………………………………………………………..
C. Define the following terms:
1. Object 2. Class 3. Java
4. Algorithm 5. Cell Reference 6. GUI
D. Guess! Who am I?
I
1. am a part of an operating system that allows a user to interact
with a computer. …………………..
I
2. am a type of operating system that allows only one user to access
the computer system at a time. …………………..
3. I am a group of selected cells in an Excel worksheet. …………………..
I
4. am a function in Excel that returns the square root of a given
number. …………………..
I
5. am a text function in Excel that returns the specified number of
characters from the left side of the text string. …………………..
6. I am a name given to an object in a Java program. …………………..
7. I am a reserved word that cannot be used as an identifier name. …………………..
E. Write the names of the following symbols used in a flowchart:
1. ………….....……….. 2. ………….....……….. 3. ………….....……….. 4. ………….....………..
Worksheet 1 71

