Types of Secondary Storage - JSS2 Computer Studies Lesson Note
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Hard Disk Drives (HDD): HDDs use magnetic storage to store data on rotating disks. They provide large storage capacities at a relatively lower cost. HDDs are commonly used for general data storage in desktops and laptops.
Solid-State Drives (SSD): SSDs utilize flash memory to store data. They are faster and more durable than HDDs but often come with a higher price tag. SSDs are commonly used for faster data access in laptops, desktops, and high-performance computing.
External Drives: External hard drives and SSDs are portable storage devices that connect to a computer via USB or other interfaces. They provide additional storage capacity and are useful for backups, file transfers, and portability.
Optical Drives: Optical drives, such as CD, DVD, and Blu-ray drives, use optical technology to read and write data on optical discs. While becoming less common, they are still used for media storage and distribution.
Network Attached Storage (NAS): NAS devices are specialized storage units connected to a network. They provide shared storage accessible to multiple users and devices. NAS is commonly used for centralized data storage and backup in home and business environments.