Final answer:
Double-sided DIMMs are known as dual-ranked DIMMs, which have separate contacts on each side and can improve performance or reliability.
Step-by-step explanation:
Double-sided DIMMs are also referred to as dual-ranked DIMMs. These memory modules have separate electrical contacts on each side of the module, providing two distinct ranks that the memory controller can access. This configuration can improve performance by increasing the available data width or by enhancing reliability through rank sparing. It's important to note that the term 'double-sided' is mostly a physical description, as the chips could be on both sides of the module, but what's more significant is whether the DIMM is single-ranked, dual-ranked, or quad-ranked, which refers to the organization of memory chips and how they are accessed by the memory controller.