Computer Concepts Module 1 Practice Exam

The main idea is recognizing storage that offers fast access without any moving parts. Solid-state drives store data in flash memory and are controlled electronically, so there’s no spinning disk or moving read/write head. That means data can be read or written almost instantly, with very low latency and high throughput, which is why SSDs are much faster for everyday use like booting up and loading apps.

In contrast, hard disk drives rely on spinning platters and moving heads; the drive must wait for the right sector to rotate under the head, which causes latency. Optical discs require the disc to spin and a laser to read data, which also introduces mechanical latency and slower random access. CD-ROMs, as a type of optical storage, share these mechanical aspects, making them slower for quick access. So the option that matches fast access with no moving parts is the solid-state drive.