Premechanical Era

 

 
The premechanical age is the earliest age of information technology. It can be defined as the time between 3000B.C. and 1450A.D. We are talking about a long time ago. When humans first started communicating they would try to use language or simple picture drawings known as petroglyths which were usually carved in rock. Early alphabets were developed such as the Phoenician alphabet.

Time which various systems were made that didn't need any mechanical effort, so it is called the pre-mechanical age of computers.

-Comminications:

Drawings 

Speaking

-Input tecnologies

Write their symbols in a kind of stone (like a wall) 

Papyrus (paper made of plants)

Paper rag.