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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