Please welcome the little Raspberry PI:
This is a tiny but capable computer, which costs something around 35$.
Of course, to make it even more awesome and useful you will need to buy WIFI dongle and at least 4 GB SD card.
Usually SD card is not a problem and every normal geek has several of them just lying somewhere on the table.
Tip If you are not a geek, or you think you are not a geek, then just take a SD card from your girlfriend’s camera.
WIFI dongle can be bought for another 20$.
To make an initial setup you probably also will need:
TV (or smtng to connect HDMI cable to);
microUSB cable for charging.
OK. Now you have all the parts. What next? What you can do with this PI?
Obviously, the first thing which comes to mind - let’s make a media server, a box which can be attached to TV and which will play videos from Internet or local video library.
But this is a story for another post.