Question

Modern computers often come with hard disks and solid-state disks (SSD) but no optical disk drives.
Explain why it is faster to access data from solid-state storage than from an optical disk.

Answer 1

║⊕ANSWER⊕║

• Rather, information is stored in microchips.
• Conversely, a hard disk drive uses a mechanical arm with a read/write head to move around and read information from the right location on a storage platter.
• This difference is what makes SSD speed so much faster.
• HDD is considerably cheaper than SSD, especially for drives over 1 TB.
• The SSD has no moving parts. It uses flash memory to store data, which provides better performance and reliability over an HDD.
• The HDD has moving parts and magnetic platters, meaning the more use they get, the faster they wear down and fail.

Answer 2

The traditional spinning hard drive has been a standard for many generations of personal computers. Constantly improving technology has enabled hard drive makers to pack more storage capacity than ever, at a cost per gigabyte that still makes hard drives the best bang for the buck.

As sophisticated as they’ve become, hard drives have been around since 1956. The ones back then were two feet across and could store only a few megabytes of information, but technology has improved to the point where you can cram 10 terabytes into something about the same size as a kitchen sponge.

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