The capacity of a 20gb hard drive is about 20 billion bytes. According to the conversion formula "1GB=1000MB=1000*1000KB=1000*1030*10008", the capacity of the 20gb hard drive can be known.

#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
How many bytes is the capacity of a 20gb hard drive?
The capacity of a 20gb hard drive is about 20 billion bytes. According to the conversion formula "1GB=1000MB=1000 *1000KB=1000*1030*10008” can determine the hard drive capacity of 20gb.
20 gigabytes (gb) = 21474836480 bytes (b)
1GB=1024MB
1MB=1024KB
1KB= 1024Byte (byte)
So 20GB=20*1024*1024*1024Byte=20*10^30Byte=21474836480Byte.

Advantages of solid-state drives:
1. Fast startup, fast reading or writing speed, small delay, and relatively fixed reading time. Because seek time is independent of where the data is stored, disk fragmentation does not affect read times.
2. There are no mechanical motors and fans, so there will be no noise when working.
3. Low-capacity solid-state drives consume low energy and generate little heat when in working condition, but high-end or large-capacity products consume higher energy.
4. There are no moving parts inside, no mechanical failure will occur, and it is not afraid of collision, impact, and vibration. Normal use will not be affected when moving at high speed or even flipping and tilting, and the possibility of data loss can be minimized when accidentally dropped or collided with a hard object.
5. The working temperature range is wider. A typical hard drive can only operate within a range of 5 to 55 degrees Celsius. Most solid-state drives can work in -10~70 degrees Celsius, or even larger temperature ranges.
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