2.3 Data Storage And Compression Flashcards
(13 cards)
How many bits in a bit
1
How many bits in a nibble
4
How many bits in a byte
8
How many bytes in a kilobyte
1,000
How many bytes in a kibibyte
1024
How many bytes in a mebibyte
1024 x 1024
How many bytes in a megabyte
1,000,000
How many bytes in a Gigi byte
1024 x 1024 x 1024
How many bytes in a gigabyte
1,000,000,000
How many bytes in a te I he
1024 x 1024 x 1024 x 1024
How many bytes in a terabyte
1,000,000,000,000
What is Lossless compression
Lossless compression restores and rebuilds file data in its original form after the file is decompressed
What is Lossy compression
In lossy compression, the data in a file is removed and not restored to its original form after decompression. Specifically, data is permanently removed, which is why this method is also known as irreversible compression.