Which technology allows the use of multiple CPUs in a single machine for multiprocessing?

The choice of multi-core processing is correct because it refers specifically to a technology in which a single physical CPU chip contains multiple cores, allowing it to perform multiple tasks simultaneously. Each core can manage its own processes and threads, enabling true multiprocessing capabilities within a single machine.

In multi-core processors, each core can execute its own thread, which means that multiple threads can run concurrently, significantly improving performance for multi-threaded applications. This design effectively expands the processing power of a computer by combining multiple processing units into a single chip, allowing for enhanced computational efficiency and multitasking.

In contrast, hyper-threading refers to a specific Intel technology that allows a single physical CPU core to act like two logical cores (or threads), thereby improving efficiency for certain workloads, but it does not utilize multiple CPUs. Virtualization is the technology that allows multiple virtual machines to run on a single hardware platform but does not inherently imply multiple CPUs. Single-threading, on the other hand, refers to a scenario where only one thread is processed at a time, which is contrary to the concept of multiprocessing.