2.1 Concept of Number System
Number System is its base or radix which is the total number of digits used to represent numbers.
Decimal: base-10 (0-9)
Binary: base-2 (0,1)
Octal: base-8 (0-7)
Hexa: base-16 (0-9,A-F)
Application of number system conversion app
- Human-computer interactions
- Colour code in html
- Networking IP and MAC
Binary addition: 0+0=0 0+1=1 1+0=0 1+1=0 cary 1
Binary subtraction: 0-0=0 1-0=1 1-1=0 0-1=1 borrow 1
2.3 Number Conversion
Divide given decimal number by obtained conversion base number until quotient 0.
Binary, octal, hexadecimal to decimal
Multiply given conversion base with it's radix.
Binary ⇋ hexadecimal
Binary in four digits groups from right to left respective hexadecimal.
Practical Task
a. Demonstrate Calculation based on various numbers system mechanisms using suitable conversion tools (e.g. online tool or Number System Convertion Mobile app).
Activities
• Demonstrate the manual conversion process hands-on.
• Visual charts help students learn and convert number systems.
• Student engagement and peer evaluation must be applied.
• Use online tool conversion calculators for decimal, binary, octal, and hexadecimal numbers.