What Is Memory Address?

Your computer's memory is much like the world's most extensive library. When you think about it, everything that happens on your computer is just a bunch of data floating around in the ether, and it has to be organized somehow for us to do our jobs. That's where memory addresses come in. A memory address is a unique identifier used by a device or CPU for data tracking. This binary address is defined by an ordered and finite sequence allowing the CPU to track the location of each memory byte. The line of a memory address is often referred to as a physical address because it is tied to a device's physical location in system memory. For a machine to have a unique memory address, it must have a unique physical location. Therefore, the position of all devices around one another determines their physical addresses. Once a device receives a physical address, it is permanently fixed and Cannot change unless it is moved to a different slot or motherboard. An example of a physical address would be a device's PCI slot, MAC address, or slot position. Modern computers are addressed by bytes, which are assigned to memory addresses. That's because computers don't have the same kind of memory that humans do they have RAM, a more sophisticated version of the memory where you might store your grocery list or the directions to your friend's house. RAM cells hold up to one byte of data at a time, and each cell has its unique address (called a memory address). You can't store more than one byte in each cell, or your computer will get confused and start mixing up all your numbers! RAM works because it has a series of different "pages," each containing multiple bytes. When you want to write something into RAM, you tell it where on the page you want it placed by specifying its memory address. That way, when another process wants to read from that location, later on, it can find what it needs by looking up its unique address.