Final answer:
The LGA 1156 socket, also known as H1 socket, was used for Intel's Lynnfield and Clarkdale processors and supports various Intel Core and Pentium CPUs.
Step-by-step explanation:
The LGA 1156 is also referred to as the H1 socket. This is a type of CPU socket used by Intel's Lynnfield and Clarkdale processors, which were introduced back in 2009. The socket supports Intel Core i7, Core i5, Core i3, Pentium, and Celeron processors that are part of the Nehalem, Westmere, and Sandy Bridge microarchitectures. It's noteworthy that this socket is incompatible with earlier Intel processors and Intel's newer microarchitectures, which require different sockets.