1. By: Nicolás Valle
Sergio García
6ºB

2. Source computers
Unlike most machines, computers do not have a single creator.

3. The beginning: 1936
The most important in the history of computers year was 1936.
Konrad Zuse created the first computer Z1.
In 1942 the company "ABC Computers" belonging to John
Atanasoff and Clifford Berry.

4. 1953
The age of computers changed with IBM (International Business
Machines) in 1953.

5. Home computers or PCs appear
Companies began to develop systems
for the average consumer.
The first home computers were very
expensive.
In 1978 the calculation program
“VisiCalc” created.
In 1979 goes on sale “WordStar”, the
first processor.

6. IBM, Microsoft and Apple
The IBMIBM PC helped revolutionize the consumer market in 1981, since its
competitive prices, allowed the average user to have a computer at home.
Also in 1981 MicrosoftMicrosoft created the MS-DOS operating system, easy to use
for everyone.
From this point, many changes have occurred, mainly due to the fierce
competition between Apple and MicrosoftApple and Microsoft.

7. Physical changes
Physical changes have also been very
important.
Both smaller and much faster computers

8. The notebook computer
In 1981 was born the notebook computer. The IBM
It was created for military and scientific purposes but the price was
outrageous.
In 1991 the company released its first Apple portable and was the role
model since

9. First
generation
Second
generation
Third
generation
Fourth
generation
Fifth
generation

10. After 2000
2003: First computer with a battery of 11 hours of battery life.
2004: first laptop with fingerprint reader.
2005: IBM falls. Are mainly two companies Microsoft and Apple

11. Curiosity: Games
Games: For many computer users, the games have been a vital part within
the world of computers.
The first computer game called "Spacewar""Spacewar" created in 1962.

12. The mouse, one of the basic components of modern computers, was created
in 1964.
Named after the cable coming out of resembling a mouse device.
Curiosity: The mouse

13. In 1969, the ARPAARPA network, can be considered the origin of the Internetthe origin of the Internet
we know today.
In 1970, IntelIntel created the first dynamic RAM chip and the first
microprocessor, a real innovation in the computer world.
A year later, the "floppy disk""floppy disk" was created. This was the first step in
enabling many people to transfer data between computers connected NO.
Curiosity: Communications Floppy disk - Internet

14. Evolution of peripherals
Apart from the computer have evolved all the
peripherals (printers, scanners, memory, sound, etc)

15. Advantages and Disadvantages of Computers

16. Disadvantages:Computer hazards.
But computers have their dangers,
for example:
Webcam
The "webcam" is a small digital
camera connected to a computer
that can capture images and
transmit them over the Internet.
Hackers can spy on a person.

17. Computer crime and cybercrime, are unlawful actions aimed at destroying
or damaging computers, electronic or Internet networks.
Disadvantages: Cybercrime

18. How to make good use of computer
When you talk on social networks people ask you where you live, how old
are you ...
You should never give information to strangers.
 DO NOTDO NOT

19. PRESENT
The development in the computer world has no limits.The development in the computer world has no limits.
But we must remember that without these small stepsBut we must remember that without these small steps
from the beginning, none of this would be possible.from the beginning, none of this would be possible.

20. The end