what in your oppion is the most helpful invention of 20th century?

Question

and why.

Answer 1

The telephone, with which modern life is unimaginable, was invented before the 20th century, so I can't say that.

In the 20th Century, I would say the transistor. Not the 'transistor radio', but the 'electronic-component' that acts as an amplifier or on-off switch. Its the basis of the digital logic gate (AND-gates, OR-gates, NOT-gates, etc) and hence, Integrated Circuits - chips of all kinds with millions of transistors in a few square millimeters, including the microprocessor, RAM, ROM, Interface Chips, Graphics chips, mobile-phone chips, the circuits in the routers and switches of the internet backbone, fibre-optic amplifiers, etc. All our gizmos, like VCRs, car engine-management units, even washing-machines, contain these chips.

Higher-level inventions, like the internet (to send packets of data for any type of service) and the World Wide Web and Email, build on top of this.

So, the transistor is the basis of all our modern electronics and our high-tech life-style.

Answer 2

I'd say the personal computer. It ushered the invention of the internet and the world as we know it now wouldn't be the same without it.

Answer 3

DSL connections, at an affordable price.
Because dial-up is too slow.

Firefox Internet Browser.
Because it bloks mostly all popups, and is faster than IE.

Myspace.com
Its a great place to connect with friends that are all spread out.

Yahoo.com
Because it is far better than google and all the other stupid search engines.

Answer 4

Clearly the internet.

The greatest source of communication and education.

Even the enviromental aspect is world changing.Billions of road sea and air miles have been saved by this method of of work and communication.

Most important of all ,it helps prevent wannabe dictators like tony blair.This person is obsessed with control and limiting freedom of speech.Here we can share our knowledge and prevent division.
Just like im doing now.

Answer 5

airplane. Made the world a much smaller place. It once took weeks to cross the atlantic. After the plane it took a day then hours to cross.

Answer 6

Not an invention, but a discovery: penicillin. Antibiotics have saved millions of lives.

Answer 7

there are so many, its hard to name jsut one, but I believe that the internet has a more far reaching effect on us in this world, most all the inventions are things that help us in our personal lives, but the internet can reach to every person on earth..
its an awesome thing..

Answer 8

Probably the microprocessor and/or printed circuit board. Those two inventions are fundamental to almost any electronics device we use today.

Answer 9

home computer its a Revelation and the whole electronic age its reached a stage where the world would not operate without it, everything has a connection

Answer 10

Antibiotics.