Some recently released operating systems are referred to as “64-bit” systems. Windows Vista and Windows 7 are both available in 64-bit incarnations, as is Snow Leopard for the Mac. These 64-bit systems are gradually replacing the older 32-bit systems because of their greater ability to access and manage the computer’s memory. This allows 64-bit systems to run faster and handle more intensive processes. An understanding of 64-bit system begins with a knowledge of the basic unit of computing data – the bit. Writer Bio