+A **register** is a small, high-speed storage location within a [CPU](/wiki/CPU) or other digital processor. It provides immediate, temporary access to data, instructions, or memory addresses actively being used for computation, allowing the [ALU](/wiki/ALU) to operate swiftly.
+## See also
+- [Memory](/wiki/Memory)
+- [Cache](/wiki/Cache)
+- [Processor](/wiki/Processor)