We use 21st century tech terms like hashtag, stream, and mouse with casual indifference, but how did these words get to be so commonplace in our everyday vernacular? We know the origins of Superman (kryptonite), Spider Man (radioactive spider), and Batman (rich boy's revenge) but not "podcast," "spam," or even "hacker." So I looked at 21 common tech terms that have been downloaded into our collective hardware and decoded them. Mouse The name "mouse" for the device came to be because the term CAT was used to describe the cursor on a screen and it seemed like the cursor was chasing the tailed desktop device. Bluetooth The 10th century King Harald Gormsson is known for uniting all of Scandinavia-and having one gnarly tooth so rotten, it looked blue. Hence he earned the nickname "Bluetooth." His kitschy moniker and ability to bond nations inspired Jim Kardach, a software developer from Intel, to pitch "Bluetooth" ...