Which of the following devices contains no moving parts and stores data in a digital format?

A.
Solid-state drive

B.
Cartridge tape drive

C.
Floppy disk drive

D.
Hard disk drive

Explanation:
Solid-state drive contains no moving parts and stores data in a digital format.
A solid-state drive (SSD) is a data storage device that uses solid-state memory to store persistent
data. An SSD emulates a hard disk drive interface, thus easily replacing it in most applications. It is
also known as solid-state hard disk drive. SSDs have no moving parts; hence, they are less fragile and
silent than hard disks. As there are no mechanical delays, SSDs usually enjoy low access time and
latency. An SSD using SRAM or DRAM (instead of flash memory) is often called a RAM-drive, which
should not be confused with a RAM disk.
Answer options D, C, and B are incorrect. Hard disk drive, floppy disk drive, and cartridge tape drive
contain moving parts.
Reference. “http.//en.wikipedia.org/wiki/Computer_hardware”