Developing Skills in QBASIC — Syllabus
ICSE · Class 7 · Computer Studies
What Developing Skills in QBASIC covers in ICSE Class 7 Computer Studies: 4 topics, for the 2026-27 session. Topics include Input Statement and Its Use.
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Topics in Developing Skills in QBASIC
Input Statement and Its Use
- LET statement assigns fixed values in the program code, but it cannot take user input at runtime.
- INPUT statement lets a numeric variable or an alphanumeric variable receive a value from the user during execution.
- During INPUT execution, a question mark appears on the screen.
Solved Input Programs
- To add two numbers entered by the user, INPUT is required because LET alone cannot do this.
- A program can use INPUT for numeric values, alphanumeric values, or both.
- When multiple values are entered with INPUT, they must be typed in the correct order.
Conditional Statements in BASIC
- A computer cannot make decisions unless it is explicitly instructed to do so.
- Conditional statements help the computer choose what to do based on a condition.
- The main conditional forms are IF-THEN, IF-THEN with ELSE, and IF-THEN-ELSEIF with ELSE.
Examples of Conditional Programming
- The mother-and-homework situation is an example of a condition: if homework is complete, then playing is allowed; otherwise, homework must be completed first.
- A simple IF-THEN example is used to print 'Positive Number' when a value is greater than zero.
- In IF-THEN with ELSE, one action happens when the condition is true and another when it is false.
Key Concepts
Central concept: QBASIC input and conditional statements help programs take data from the user, make decisions, and display results.
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