-
First traces of man, such as spots, stripes, spots generated in stones in and cave walls.
-
They are drawings or images plus the use of key signs that transformed the reading into a riddle
-
transforms into signs that represent the first sounds
-
the Greeks learned about the Phoenician alphabet and adapted it by adding vowels, thus forming the new alphabet by 23 letters
-
instrument for making telegraphic signals by means of the reflection of the sun's rays in a movable mirror
-
set of printed publications that differ according to their periodicity
-
device that receives and transmits long-distance communications and is connected to a telephone network
-
They are structures formed on the internet by their people or organizations that connect from the internet
