What type of secondary storage device contains no moving parts?

A Solid State Drive (SSD) is indeed a type of secondary storage device that contains no moving parts. Unlike traditional hard disk drives (HDDs), which use spinning disks to read and write data, SSDs utilize flash memory to store data. This absence of moving components makes SSDs much faster and more reliable compared to HDDs, as they can access data almost instantaneously and are less susceptible to physical damage from bumps or drops.

SSDs are commonly used in modern computing environments due to their high speed, efficiency, and durability. They can significantly improve the performance of a computer by reducing boot times and increasing the speed at which applications load and operate. The lack of moving parts also results in lower power consumption and quieter operation, making them more suitable for portable devices like laptops.

In contrast, optical drives and hard disk drives rely on physical mechanisms, such as spinning disks and read/write heads, to function, making them less efficient in terms of speed and durability compared to SSDs. Flash drives do also contain no moving parts, but they are typically considered a different category of storage compared to SSDs, which are more integrated with the system as internal storage devices.