Problem Solving and Programming Design (Part 3)

What is Data

• Data type determine how data is represented

• Computer program operate on data

• An Array of facts that can be modified by computer

• information that has been translated into form

What is Data Type?

• Computer program operate on data and produces output

• The data type determine how data is represented

• Information that has translated into form

• deals with data in ways that let them know what kind of information

What is Numeric Data ?

• Numeric data is data that represents colors and shapes.
• Numeric data is data that represents numbers, including integers and decimals.
• Numeric data refers to text and characters.
• Numeric data is only whole numbers without fractions.
• Arithmetic can be performed on numeric data

What is Non-Numeric data?

• Non-numeric data is data that cannot be expressed in numerical form, such as text, images, and audio.
• Non-numeric data is data that can be calculated mathematically.
• Non-numeric data refers exclusively to numbers.
• Non-numeric data is only numerical data with letters.

Example data type of Integer

• -707

• a1

• 817

• ob

• 0

Example data type of Character (Char)

• b

• 3

• ?

• 07

Example data type of Character (Char)

• b

• 3

• ?

• 07

Example Data Type of Date

• 20:06:00

• 204

• 2024-08-23

• 20010

What is Identifier?

• A program operates on data, which is stored in memory

• Identifier are made up of letters

• • All single characters and strings are identifier

• Identifier are used in C++ to name things-such as subprograms and places in the computer memory

What is Variable?

• A program operates on data, which is stored in memory

• kind of memory location

• • All single characters and strings are Variable

• While a program is executing, different values may be stored in the same memory location at different times