en:electrical_configurations

ELECTRICAL CONFIGURATIONS

electrodes
Display
- liquid crystals
  - similar to biological cell membranes
Circuits
- Printed circuit boards (PCB)
- Digital circuits
  - mainly made of silicon
    - for performing arithmetic , logic and I/O operations
      - processor , processing unit , microprocessor
        
        Control unit
        
        arithmetic logic unit
      - graphics processing unit
  - Shift register , process register , data buffer
- logic Values
  - Boolean values
semiconductor chips
- built with transistors
  - used for storage of data
    - semiconductor memory
      - memory cells
        
        bits storing 0 or 1
  - volatile memory
  - non volatile memory
    - hard drive , hard disk , fixed disk
    - floppy disk
    - magnetic tape
    - disk
  - Random access memory ( RAM)
    - SRAM ( static RAM )
    - DRAM ( dynamic RAM)

Circuits
- very simple
  - diode
  - logic gates

Artificial sensory particles (sensor)
- image sensor
- color sensor