Digital Systems
- Digital systems are designed to store, process, and communicate information in digital form.
- They use discrete values, such as binary digits (0s and 1s), to represent data.
Digital systems are the backbone of modern technology, enabling everything from smartphones to complex industrial machinery.
Binary Digits
Definition
Binary Digit
A binary digit has either a value of 0 or 1. These values correspond to on and off signals in electronic circuits.
Think of binary digits like a light switch: 0 represents the switch being off, and 1 represents it being on.
Logic Gates
Definition
Logic Gates
A digital device that performs a Boolean function, controlling whether an input signal passes through to the output based on logical rules (e.g., AND, OR, NOT).
Logic gates are the fundamental building blocks of digital circuits, enabling complex computations and decision-making processes.
How Logic Gates Work
- Logic gates use transistors to control the flow of electricity.
- Transistors act as switches, turning on or off based on the input signals.
- The combination of these switches determines the gate's output.
- Consider a logic gate as a series of water pipes with valves.
- The transistors are the valves, controlling the flow of water (electricity) based on the input conditions.
Types of Logic Gates
- AND Gate
- Outputs 1 only if all inputs are 1.
