Differences Between AC and DC

AC, or Alternating Current rapidly changes the direction in which the current is flowing. Sometimes the current is flowing forwards, and sometimes backwards. This changes many times a second. This was invented by Nikola Tesla

DC, or Direct Current only flows in one constant direction. This was invented by Thomas Edison

Alternating Current is what is delivered through the power outlets in our houses. It is more commonly used because it has better power transmission. Some electronics, however, require the use of Direct Current. One common example of this is our computers. The power supply in the computer converts the AC electricity from the wall into DC electricity that the computer components require.