Skip to main content

Representation of Binary Data

Information is stored on the computer in binary form. A binary bit can exist in one of two possible states.
In positive logic, the presence of a voltage is called the ‘1’, true, asserted, or high state. The absence of a voltage is called the ‘0’, false, not asserted, or low state.

Given figure shows the output of a typical complementary metal oxide semiconductor (CMOS) circuit.

The left side shows the condition with a true bit, and the right side shows a false.

The output of each digital circuit consists of a p-type transistor “on top of” an n-type transistor. In digital circuits, each transistor is essentially on or off.

  • If the transistor is on, it is equivalent to a short circuit between its two output pins.
  • Conversely, if the transistor is off, it is equivalent to an open circuit between its outputs pins.

Digital logic

Video for better understanding​

Watch the video