A number of other parts are attached to the motherboard, such as the memory RAM chips, the ROM, the CPU, PCI slots, USB ports etc, and it has controllers for your hard drive, DVD drive, keyboard, mouse etc. The motherboard is the part that connects everything so that your computer can run. It has empty slots on which you can connect additional Like every piece of hardware, hard drives can fail. Mechanical hard drives in particular have moving parts that can (and eventually will) stop working. Even solid-state drives, which have no moving parts, can fail. Every drive has a limited lifespan before it kicks the bucket. DVD – Digital Versatile Disc is another type of optical storage device. It can be readable, recordable, and rewritable. Recordings can be done in such devices and then can be attached to the system. CD-R – It is a readable Compact Disc which uses photosensitive organic dye to record data and store it. 1.8.2 Applications of ferrites in hard disk drives. A very simple hard disk drive (HDD) shown in Fig. 1.17 is a storage device in which digital information is stored on spinning magnetic hard disks, called magnetic media. Normally, HDD consists of recording media, read/write heads, a spindle, and an actuator. The disk is categorized as a magnetic disk storage device because they store data using magnetic technology. Some types of hard disks are internal or external, PATA, SATA, SCSI, and USB-connected disks. A magnetic hard disk is made up of platters, a read-write head, a sector, tracks, and an actuator among other parts. A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer. A hard disk failure may occur in the course of normal operation, or due to an external factor such as exposure to fire or water or high magnetic fields , or suffering a sharp impact or 45Z5I.

internal parts of hard disk