What do humans mainly rely on to record information?

The earliest: counting fingers, knotting ropes, replacing stones, and drawing on the cave walls.

Then came China: bamboo slips, wooden slips, metal container surfaces, silks, silks, and Cai Lun papermaking. Abroad: leaves of broad-leaved plants (tropical areas), animal skins, paper.

Nowadays, paper is a widely used information carrier, and magnetic storage media, electronic information storage media and optical storage media have also penetrated into our lives.

In the future, people will explore information carriers with higher storage density and more stable storage state. For example, biological storage-using DNA to store information.

Second, the recording method

At first, "remembering things with things" or "borrowing things to remember things" is to change things to be recorded into things that are easier to carry, but at this time all "things" are real things.

Then humans learned to replace things with simpler symbols. From "hieroglyphics" to "modern characters" which are constantly developing and updating.

Moreover, with the development of computers, people make use of the simplicity of binary numbers to correspond binary numbers with information through formula conversion, so that they can use the magnetic storage medium (magnetic disk), optical storage medium (optical disk) or electronic information storage medium (memory, U disk) mentioned above for recording.