Premechanical age

1^st Presentation

Premechanical age

3000 B.C- 1450 A.D

How the human started to comunicate

Started with Alphabets, numbers, the firts calculator

Petroglyths signs of simple figures caven in rocks, primitive drawings

Cuneiform script: the frist true writing language, first information system

2000BC symbols are created by phoneticians, syllabes and consontants

Greek adapted the phonetician alphabet and added vowels

Romans gave the letters latin name to creat the alphabet we use today

PAPERS AND PEN

Sumerians used stylus and wey clay

Egyptians used papyrus plants (2600 B.C)

Chinese- made paper from rags (100 ad)

BOOKS AND LIBRARIES

Mesopiamia religious leaders kept the arliest book

Egyptian- Kept scrolls

Greeks: 600 BC fold sheets of papyrus Vertically into leaves and bind tem together

Fistr numering syistem

Egyptian- Vertical lines (I) for numbers 1-9

U or O – 10

coiled rope – 100

lotus blossom for 1000

Firts Calculator

Abacus: Invented in babylonia and popularized in China.