SSD VS HDD

the difference between a hard drive disk and a solid state drive is that a hard disk drive is a data storage device used for storing and retrieving digital information using rapidly rotating disks coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random access manner, meaning individual blocks of data can be stored or retrieved in any order rather than sequentially. An HDD consists of one or more rigid rapidly rotating disks with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces and a solid-state drive is that  (also known as a solid-state disk though it contains no actual disk, nor a drive motor to spin a disk) is a data storage device that uses integrated circuit assemblies as memory to store data persistently. SSD technology uses electronic interfaces compatible with traditional block input/output (1/O) hard disk drives, thus permitting simple replacement in common applications. Additionally, new I/O interfaces, like SATA Express, have been designed to address specific requirements of the SSD  technology.