First time job

1.1 What we want to compress.

A: We want to compress the things that occupy too large proportions and affect the operation.

1.2 Why compression is needed.

A: For example, if a box is loaded with stones, it can only be loaded with five pounds. But to install the sand, you can pack 8 pounds. If the whole stone is loaded, it is 10 pounds. Greatly improve the resource utilization.

1.6 How data compression is categorized

A: Data compression classification method is numerous, not yet unified. I understand that there are two kinds. One is reversible compression and irreversible compression. The other is lossy compression and lossless compression

First time job