1.1 Analog vs Digital Systems (BT102CO)
1. Introduction
A system is a set of elements or components that are organized for a common purpose. In electronics, systems are generally divided into two categories: Analog and Digital.
2. Analog vs. Digital
An analog system uses continuous signals to represent information, while a digital system uses discrete values (typically 0 and 1).
| Feature | Analog System | Digital System |
|---|---|---|
| Signal Type | Continuous | Discrete (Binary) |
| Precision | Affected by noise | High precision, noise resistant |
| Storage | Difficult to store (tapes) | Easy to store (HDD, Flash) |
| Complexity | Simpler for small tasks | Flexible and programmable |
| Example | Mercury Thermometer | Digital Clock |
3. Advantages of Digital Systems
- High speed and high reliability.
- Ease of design and information storage.
- Programmability and flexibility.
- Less affected by noise and environmental changes.