The document discusses cell phone usage according to a survey. It found that 76% of users send messages, 74% talk, and 56% use their phone as an alarm clock. It also provides details on the invention of the cell phone by Martin Cooper on April 3, 1973, how it has evolved from a heavy device to a lightweight computer, and thanks the reader for their attention.

1. Cell Phone
NAME:CARLOS VIERA
CLASS:8°A

2. When Do we use it?
 76% Send Messages
 74% Talk
 56% Alarm Clock
 43% Take Pictures
 40% Listen To Music
 34% As an Agenda
 31% To Play
 26% filming videos
 9% Browse in web Pages

3. When Was it invented?
 it was invented in the 3 april,1973

4. Who Invented it?
 It Was Invented by Martin Cooper

5. Why is it important?
 A Mobile Phone is an electronic device whose
function is to communicate by phone

6. Has it Changed since it was invented?
 The Mobile phone was born forty years ago as a hulk of almost a kilo of
weight.But with the passage of time it has been styling and evolving into a sheet
of glass,silicon and aluminum ,a real pocket computer that also serves to speak.

7. Thank you for you attention