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The computer’s hard drive is where data is stored long-term, even when the computer is turned off. Hard drives come in two main types: mechanical and solid-state hard drives. Mechanical hard drives are made up of spinning disks, called platters, that store data magnetically. Solid-state hard drives don’t have moving parts; they use microchips to store data.
External hard drives
External hard drives are a great way to store data long-term, even if the computer is shut off. These devices are typically larger and have more storage than internal hard drives, making them ideal for backing up large amounts of data.
Cloud storage is a service that allows users to save files online so they can be accessed from anywhere. The data is stored on servers maintained by the service provider, and users can access their files via the Internet. Cloud storage is convenient because it allows users to access their data anywhere. It eliminates the need to carry around physical storage devices such as USB or external hard drives.
There are many different cloud storage providers, each offering its features and pricing plans. Some popular providers include Dropbox, Google Drive, iCloud, and OneDrive.
Solid State Drives (SSDs) are a newer type of storage device that is becoming more popular as they become less expensive. SSDs store data on interconnected flash-memory chips and do not include any moving internal parts. Because SSDs have no moving parts, they are much less likely to fail than HDDs. In addition, SSDs typically use less power than HDDs, resulting in longer battery life.
CDs and DVDs
We all know that computers need the power to work. The electricity keeps the computer’s brain (the processor) running and enables it to communicate with the other parts of the machine. But what happens when you shut off the power or unplug the computer?
The computer’s brain may sleep, but data is stored in long-term memory. This long-term memory is not affected by a power outage or a reboot, which is why it’s essential to have a backup plan for your data.
There are two types of long-term memory: internal and external. Internal long-term memory is stored on the computer’s hard drive, while external long-term memory is stored on CDs, DVDs, or other removable media.
USB flash drives
USB flash drives are small; portable devices used to store data. They are often used to transfer data from one computer to another or to store data that is not needed regularly.
Flash drives are popular because they are relatively inexpensive and can hold large amounts of data. They are also convenient because they can be plugged into a computer’s USB port and do not require an external power source.
Flash drives typically have a storage capacity of between 2 GB and 16 GB, but some models can hold more. The number of files stored on a flash drive depends on the file size; for example, a 16 GB drive can typically store around 4,000 music or 2,000 photo files.
Computer memory comes in many different types and has numerous applications. Memory cards are just one type of memory used to store data long-term, even if the computer is shut off. Other types of long-term storage include hard drives, optical drives, and flash drives.
Redundant Array of Independent Disks (RAID) is a storage technology that combines multiple disk drive components into a single logical unit to behave as one drive when connected to any other hardware. RAID primarily uses data storage and improves storage systems’ performance, reliability, and fault tolerance.
Multiple RAID levels offer different offering size, speed, and redundancy trade-offs. The most common levels are 0, 1, 5, and 6.
RAID 0: Striped Disk Array without Fault Tolerance
RAID 1: Mirrored Disk Array
RAID 5:Block-Level Striping with Parity Data
RAID 6:Block-Level Striping with Double Parity
Network-attached storage is data storage that is connected to a computer network and can be accessed by authorized users. It is usually used for storing large amounts of data that need to be backed up or shared.
A tape backup is a data storage device that stores data on magnetic tape. Tape backups are used to preserve data long-term, even if the computer is shut off. Tape backups are typically used for archival purposes but can also be used for recovery in the event of a system failure.