The fastest type of memory from the following list is semiconductor memory.
Semiconductor memory is a type of computer memory that uses semiconductor technology to store and retrieve data. It is the most common type of memory used in computers today. Semiconductor memory is divided into two main categories: volatile memory and non-volatile memory. Volatile memory loses its contents when the power is turned off, while non-volatile memory retains its contents even when the power is turned off.
The most common type of volatile memory is dynamic random-access memory (DRAM). DRAM is a type of semiconductor memory that stores data in capacitors. The capacitors need to be refreshed periodically to maintain their charge, which is why DRAM is called dynamic memory. DRAM is the most common type of memory used in computers today.
The most common type of non-volatile memory is flash memory. Flash memory is a type of semiconductor memory that stores data in floating-gate transistors. Flash memory is non-volatile, which means that it retains its contents even when the power is turned off. Flash memory is used in a variety of devices, including USB drives, solid-state drives (SSDs), and digital cameras.
Tape memory is a type of magnetic storage that uses magnetic tape to store data. Tape memory is a sequential-access storage device, which means that data can only be accessed in a linear fashion. Tape memory is typically used for backup and archival purposes.
Disk memory is a type of magnetic storage that uses disks to store data. Disk memory is a random-access storage device, which means that data can be accessed in any order. Disk memory is typically used for primary storage and secondary storage.
Bubble memory is a type of magnetic storage that uses bubbles to store data. Bubble memory is a random-access storage device, but it is not as fast as semiconductor memory. Bubble memory is no longer used in computers today.
Therefore, the fastest type of memory from the following list is semiconductor memory.