The premechanical period from 3000 B.C. to 1450 A.D. saw the development of early forms of communication like petroglyphs and alphabets, the creation of writing tools like pens and paper made from papyrus, and the establishment of early libraries and data centers to store written information on scrolls and some bound books. Key inventions included early numbering systems by Hindus and the abacus, one of the first calculators.

1. PREMECHANICAL
PERIOD
3000 B.C. – 1450 A.D.

2.  The premechanical period is the earliest age
of technology.
 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 such as Phoenician Alphabet
were developed.

3.  As alphabets became more popluar and more
people were writing information down, pens
and paper began to be developed.
 Paper was created out of papyrus plant.
 This is where the first books and libraries are
developed.
 Libraries were the first data center created.

4.  Egyptian scrolls was one of the popular ways
in writing and keeping information.
 Some groups of people were actually binding
paper together into a book-like form.
 The first numbering systems similar to those in
use today were invented between 100 and 200
A.D. by Hindus in India who created a nine-
digit numbering system.
 Abacus – the very first calculator was
invented.