Power Source
RTCs often have an alternate source of power, so they can continue to keep time while the primary source of power is off or unavailable. This alternate source of power is normally a lithium battery in older systems, but some newer systems use a supercapacitor, because they are rechargeable and can be soldered. The alternate power source can also supply power to battery backed RAM.
Read more about this topic: Real-time Clock
Famous quotes containing the words power and/or source:
“Without the power of the Industrial Union behind it, Democracy can only enter the State as the victim enters the gullet of the Serpent.”
—James Connolly (1870–1916)
“Knowledge is the most democratic source of power.”
—Alvin Toffler (b. 1928)