DIMMs, or Dual In-line Memory Modules, are a type of computer memory used in desktops and servers. They contain multiple memory chips and connect to the motherboard via a 240-pin or 288-pin interface, depending on whether they are DDR3, DDR4, or DDR5 types. DIMMs allow for increased memory capacity and improved performance compared to older memory types. Each DIMM operates independently, meaning that they can be accessed simultaneously, which enhances data transfer rates. This design is crucial for modern computing tasks, such as gaming, video editing, and running multiple applications at once, ensuring smooth and efficient performance.