By: Nicolás ValleSergio García

6ºB

Source computersUnlike most machines, computers do not have a single creator.

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.

1953The age of computers changed with IBM (International Business

Machines) in 1953.

Home computers or PCs appearCompanies 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.

IBM, Microsoft and AppleThe 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 Microsoft Microsoft 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.

Physical changes

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

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

First generation

Second generation

Third generation

Fourth generation

Fifth generation

After 20002003: 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

Curiosity: GamesGames: 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.

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

In 1969, the ARPAARPA network, can be considered the origin of the Internet the 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

Evolution of peripherals Apart from the computer have evolved all the

peripherals (printers, scanners, memory, sound, etc)

Advantages and Disadvantages of Computers

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.

Computer crime and cybercrime, are unlawful actions aimed at destroying or damaging computers, electronic or Internet networks.

Disadvantages: Cybercrime

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

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 steps But 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.

The end