People with iPads routinely browse the Web, watch video, play games, read books and otherwise keep themselves entertained on the go. Far fewer rely on the iPad as their go-to work machine. It's not as though you can't use your iPad for work. Quickoffice Pro, Documents To Go and Apple's own Pages, Keynote and Numbers software are among the very fine Office-type productivity apps for the tablet.
Once upon a time, a "computer" was a human being, usually female, who did calculations set for her by men in suits. Then, in the 1940s, something happened: computers became machines based on electronics. The switch had awesome implications; in the end, it spawned a technology that became inextricably woven into the fabric of late-20th- and early 21st-century life and is now indispensable. If the billions of (mostly unseen) computers that now run our industrialised support systems were suddenly to stop working, then our societies would very rapidly grind to a halt.
8 March 2012 Last updated at 12:55 ET Nasa image showing extreme ultraviolet wavelengths on Sun's surface A solar storm in the Earth's magnetic field has passed by the Earth with minimal effects, experts say. "The freight train has gone by, and is still going by, and now we're just watching for how this is all going to shake out," said Joseph Kunches, a scientist with US weather agency Noaa. The last of the charged particles from the Sun will pass Earth Friday morning. There had been fears that this "coronal mass ejection" could wreak havoc with satellites or power grids on Earth.
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