Hard Fork

A property characterized by inability to be change and stays unchanged over time.

In cryptography, encryption is a process of encoding information the original form of information called plaintext via an algorithm called cipher. The encrypted message is now called ciphertext. Only authorized parties can decipher the ciphertext and convert back it to the original plaintext.

The lowest point (in price, in market capitalization) that a cryptocurrency has been in history.

Total processing power of a blockchain or what is the same, are the amount of hash values that can be made in a period of time.