Primary / Secondary storage

Primary / Secondary storage

1. HDD

   • Discs spinning around with a small needles .
     • How does it work?
   • 500Gb to 2Tb Average.
     • What is its average capcacity?
   • 5000RPM
     • Whats the speed of it?
   • An average HDD will not be very portable, you could drop it and make the needle penetrate the disc, making it unusable.
     • How portable is it?
   • Durable to extent, if dropped it could damage beyond repair
     • How durable is it?
   • Secondary storage can be very reliable unless dropped, because if it's dropped, the discs inside can get damaged and not work..
     • How reliable is it?

2. Primary

   • Magnetic disk spinning around with a little needle
     • How does it work?
   • 8Gb - 16Gb
     • What is its average capacity?
   • 2000 MHz
     • Whats the speed of it?
   • Fits into pocket but the slightest discharge of electricity, will damage it beyond repair
     • How portable is it?
   • Very durable could last a long time.
     • How durable is it?
   • Very reliable with capacity bigger than 4Gb.
     • How reliable is it?

3. SSD

   • Basically a big USB
   • More portable than a HDD, as its smaller than a standard HDD.
   • It can be very reliable, unless damaged.
   • 2600MHz
     • usually 256GB to 1TB
   • Very durable as there's no moving parts.

4. Flash

   • Slow file upload, quicker download.
   • Flash memory/USB
   • 4GB to 1GB
   • Durable as its small and no moving parts.
   • Reliable unless damaged
   • Very portable as its on a small stick.

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