This video explains the following topics. Hard disk type Type of hard disks Mechanical hard disk drive SCSI hard disk drive PATA hard disk drive NVMe hard disk drive SCSI disk interface PATA disk interface SATA disk interface NVMe disk slot M.2 slot Differences between SATA and PATA Differences between SCSI and PATA Differences between SATA SSD and NVMe SSD Differences between MBR and GPT Differences between serial and parallel data transmission Why hard disks use serial disk transmission Type of hard disk partitions Primary, Extended, and logical partitions GPT partitions Type of system firmware File system Hard disk partition Differences between MBR and GPT partitions Parallel Advanced Technology Attachment (PATA) Serial Advanced Technology Attachment (SATA) Small Computer System Interface (SCSI) NVMe (Non-volatile Memory Express) Hard Disk Drive (HDD) What are the 2 types of hard drives? What is disk type? What are the 3 different drive types? Which is better SSD or HDD? 4 types of hard disk different types of hard disk hard disk type of memory what are the three types of hard disk internal hard disk types hard disk name list PATA hard disk 5 types of hard disk drives based on connector This video is based on the following tutorials. https://www.computernetworkingnotes.com/networking-tutorials/scsi-pata-sata-and-nvme-explained.html https://www.computernetworkingnotes.com/networking-tutorials/differences-between-hard-disks-and-ssds-explained.html https://www.computernetworkingnotes.com/networking-tutorials/why-do-hard-disks-use-serial-transmission.html https://www.computernetworkingnotes.com/networking-tutorials/guid-partition-table-gpt-explained.html https://www.computernetworkingnotes.com/networking-tutorials/bios-v-s-uefi-explained.html https://www.computernetworkingnotes.com/networking-tutorials/master-boot-record-mbr-explained.html