The mobile phone was

Like this

But…

These are our mobiles now

Some inventions

Who invented…

William.L potts Invented the Traffic lights

But…These are our

Traffic lights now

What is internet? The internet is a world wide computer network

That allows people to do many things ,like Communicate with each other

Which inventions have Improved our lives?

Many inventions have improved our lives.The most important inventions are in these

Areas:medicine,transport,industry andEnergy,free time and communications

MedicineWith X rays we can see inside the body

With antibiotics,like penicillin,we can stopInfections caused by bacteria

With vaccinations we can prevent some illnesses

TRANSPORTJames Watt invented the steam

Engine in 1775.This revolutionised transport

Steamboats,trains,cars,motorbikes and planesfollowed

Technology is continually improving transport

INDUSTRY AND ENERGYThe steam engine was also very

Important for industry.It made machinesWork quickly.

The invention of the electric motorRevolutionised machines in industry and

In homes

FREE TIMEPeople take photos with cameras,

Listen to radios, watch the televisionAnd go to cinemas.

Nowadays there are more and moreInventions we can use in our free time,Like electronic games and machines in

Theme parks.

https://www.youtube.com/watch?v=zBg59AFGl0w

COMMUNICATIONSThe printing press was invented around1450.It revolutionised communications.

Later came the telephone,the faxMachine and the mobile phone

What does a computer doAnd what parts does it

Have?A computer is an electronic machineThat receives,stores,processes andProduces data (information).We use

Computers at home,at school,at work,In fact nearly everywhere

Computer have 2 elements:Hardware:the machine itself (CPU) and itsParts.These are the parts of the computer

That you can touch.

Software:the programes which tell theComputer what to do.These are inside the

CPU and you can´t touch them.

SOME PARTS OF THECOMPUTER