1. a hardware device attached to a computer without which a particular software program will not run: used to prevent unauthorized use.
2. Also called wireless adapter. a device that can be plugged into a USB port to enable wireless access from a computer to an external Wi-Fi device, as a mobile phone, or to the Internet, via high-speed broadband, or to enable wireless connectivity in a printer or other peripheral.
"How is it that hardly any major religion has looked at science and concluded, 'This is better than we thought! The Universe is much bigger than our prophets said, grander, more subtle, more elegant. God must be even greater than we dreamed'? Instead they say, 'No, no, no! My god is a little god, and I want him to stay that way.'" - Carl Sagan
"To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection." - Henri Poincaré