Today our hard-drives come in x Gigabyte or x Terabyte capacity. 20 years ago when data storage was still measured in Megabytes, I didn’t even know the word “Terabyte”. I imagine in the next 10 years, Terabyte capacity will sound very small. Then what’s next? Here’s a list that might help:
byte
In digital data, 1 byte is 1 usually associated with 1 character. Even though the more accurate term would be 1 byte = 8 bits of information (256 possible “entity”).
Kilobyte
1 Kilobyte = 1,024 bytes. Or, to make the number easier to read, we are going to assume 1 Kilobyte = 1,000 bytes here.
Megabyte
1 Megabyte = 1,000,000 bytes (1 million bytes).
Gigabyte
1 Gigabyte = 1,000,000,000 bytes (1 billion bytes).
Assuming one digital photo taken from 10 megapixels camera is 4 Megabytes, 1 Gigabyte can store 250 photos.
Assuming one song in MP3 file is 5 Megabytes, 1 Gigabyte can store 200 songs.
Terabyte
1 Terabyte = 1,000,000,000,000 bytes (1 trillion bytes).
This can hold around 250,000 photos (10 megapixels resolution) or 200,000 MP3 songs.
Assuming a movie file (2 hours, 1080p Full HD quality) is around 4 GB, 1 Terabyte can store 250 movies.
Petabyte
1 Petabyte = 1,000,000,000,000,000 bytes (1 quadrillion bytes).
This can hold around 250,000,000 photos (10MP) or 200,000,000 MP3 songs or 250,000 Full HD 1080p movies.
Exabyte
1 Exabyte = 1,000,000,000,000,000,000 bytes (1 quintillion bytes).
This can hold around 250,000,000,000 photos or 200,000,000,000 MP3 songs or 250,000,000 Full HD 1080p movies.
Zettabyte
1 Zettabyte = 1,000,000,000,000,000,000,000 bytes (1 sextillion bytes).
This can hold around 250,000,000,000,000 photos or 200,000,000,000,000 MP3 songs or 250,000,000,000 Full HD 1080p movies.
Yottabyte
1 Yottabyte = 1,000,000,000,000,000,000,000,000 bytes (1 septillion bytes).
This can hold around 250,000,000,000,000,000 photos or 200,000,000,000,000,000 MP3 songs or 250,000,000,000,000 Full HD 1080p movies.
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