Microchips

Computers, tablets and smartphones can do more and more things these days. ....... years ago, they were not powerful enough to do this. How many years ago?

IBM has created chips that improve performance. How much performance was raised?

• 55%

• 75%

• 65%

• 45%

IBM has greatly improved its microchips by reducing their size to nanometres. What is a nanometre?

• One nanometre is just a zillionth of a metre

• One nanometre is just a trillionth of a metre

• One nanometre is just a billionth of a metre

• One nanometre is just a millionth of a metre

According to the text, how much per cent of the world's electricity do data centres use?

• 10%

• 11%

• 1%

• 1.5%

IBM new microchips also use 75 per cent less energy. This is good for the environment because:

• batteries will spend more energy

• batteries will last 4 days

• batteries will be more energy efficient

• batteries will not be useful anymore