Address Bus DefinitionComputer Pages: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
An address bus is (part of) a computer bus, used by CPUs or DMA-capable units for communicating the physical addresses of computer memory elements/locations that the requesting unit wants to access (read/write). The width of an address bus, along with the size of addressable memory elements, determines how much memory can be accessed. For example, a 16-bit wide address bus (commonly used in the 8-bit processors of the 1970s and early 1980s) reaches across 2 to the power of 16 = 65,536 = 64K memory locations, whereas a 32-bit address bus (common in today's PC processors) can address 4,294,967,296 = 4G locations. In most microcomputers the addressable elements are 8-bit bytes (so a "K" in that case is equal to a "KB", i.e. a kilobyte), while there are also many examples of computers with larger "chunks" of data as their minimum physically addressable elements, notably mainframes, supercomputers, and some workstation CPUs. No matter if you need to know "what is a Address Bus", the definition of a "Address Bus", or the meaning of a "Address Bus", you can find it here at Network Liquidators. There's quite a bit of information out there to learn, and it all starts by you having the initiative to seek out that information. We hope this definition of Address Bus was what you were looking for and appreciate your visit and welcome you back anytime. Check Our our Network Equipment InventoryComputer Pages: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
