Computer Structure - Secondary Storage

Secondary Storage
Computer software and data are permanently stored in memory, which is often referred to as secondary storage or auxiliary storage. Since this kind of memory can keep its contents even when the power is switched off, it is referred to as non-volatile memory. Non-volatile memory is employed for backup and long-term storage.
A secondary storage device, such a hard disk drive, is where you store files, applications, and operating systems that you install.
There are three categories of secondary storage devices: solid state, optical, and magnetic.
Hard disk drives and other magnetic storage systems store data by magnetizing certain areas of the disk with the help of a magnetic field. These gadgets are typically inexpensive and have enormous capacities.
Flash memory is used by solid state devices to store data. These gadgets are usually quick, costly, and have little capacities.
Optical devices read data from CDs, DVDs, and Blu-ray disks using a laser. Additionally, writing data to a disk is possible, but it is typically permanent and cannot be removed.
SATA cables are typically used to connect secondary storage devices to the motherboard. The hard drive is located on the left in this image, and the SATA cable is connected to a SATA port on the motherboard.