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Storage Unit

Storage units are hardware components that save digital data, categorized into primary storage (like RAM) and secondary storage (like hard drives and SSDs). They are essential for data safety, access, transfer, and backup options, including cloud storage. Various types of storage devices, such as DVDs, flash memory, and SSDs, offer different benefits like speed, portability, and reliability.

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33 views2 pages

Storage Unit

Storage units are hardware components that save digital data, categorized into primary storage (like RAM) and secondary storage (like hard drives and SSDs). They are essential for data safety, access, transfer, and backup options, including cloud storage. Various types of storage devices, such as DVDs, flash memory, and SSDs, offer different benefits like speed, portability, and reliability.

Uploaded by

simonecristofoli7
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as TXT, PDF, TXT or read online on Scribd
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What Are Storage Units?

Storage units (also called storage devices) are hardware components used to save
digital data. They store everything from documents and images to software and
system files.

There are two main types:

Primary storage: like RAM, temporary and fast, used while the computer is running.

Secondary storage: like hard drives, SSDs, DVDs, flash drives, used to permanently
store data, even when the computer is off.

Storage units are essential because they:

Keep your files safe

Allow data access and transfer

Provide backup and sharing options (including cloud storage)

Unit 5 – Storage – Summary


💿 How DVDs Play the Blues
DVDs use a laser beam to read and write data.

The color of the laser determines the data capacity: blue lasers (used in Blu-ray)
have a shorter wavelength, allowing more data to be packed onto the disc compared
to red lasers.

⚡ Flash Memory: A New Generation of Flash Storage Devices


Flash memory is a non-volatile type of storage (keeps data without power).

Commonly used in USB flash drives, memory cards, and solid-state drives (SSDs).

It's fast, lightweight, and has no moving parts, making it more reliable than
traditional hard drives.

💼 Bringing Your Files with You


Portable storage devices like USB drives allow users to carry files anywhere
easily.

Useful for transferring files, backing up data, or working on different computers.

📸 Flash Memory Cards: What You Need to Know


Flash memory cards are widely used in cameras, smartphones, and other mobile
devices.

Types include SD (Secure Digital), microSD, and CompactFlash.

They vary in size, storage capacity, and read/write speed.

💻 SSD: The New Generation of Personal Computer Storage


Solid-State Drives (SSDs) use flash memory instead of spinning disks.

They are faster, more durable, and quieter than traditional hard disk drives
(HDDs).

SSDs improve system boot time and application performance.

☁️ Your Data Is in the “Cloud”!


Cloud storage lets users save data online, accessible from any internet-connected
device.

Examples: Google Drive, Dropbox, iCloud.

Advantages: remote access, file sharing, and automatic backups.

Requires a stable internet connection.

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