It was an old book that had a series of short sci-fi stories in it. I read it in 2005 before it was removed from my high school library’s catalogue, so I think it was pretty old then. While I don't remember the name of the book, or the author, I do remember several of the stories within it.
One was about a murder committed in one area, but the culprit was hundreds of miles away. He used a teleporter to travel to his victim, kill her, then travel back, all within minutes. The end of the story talks about how this new technology has made crime impossible to prove, since alibis mean nothing now.
Another was about the future of corporate servitude in the future, where these companies literally raise you and become your family. It was about a couple, each from a rival company. The man eventually breaks free of the compelling indoctrination, but his wife (or girlfriend or fiancée, I can't remember exactly) kills him out of loyalty to the company she works for.
Finally, the last story I can remember is about uncontrolled technology escaping. In a lab, scientists create either tiny purple men, or intelligent purple bacteria. All that matter is that they're very small, and each generation becomes smaller by half. Eventually, they become so small they can manipulate subatomic matter. When the scientists try to kill them, they grow resistant and hostile, killing several of the scientists who used to be their friends. In the end, they impersonate the last scientist's wife and kill her, before taking over the planet in a "grey goo" scenario, where their intelligence is a single person, alone on a planet of itself, lamenting the isolation of its actions.
The only other thing that I can remember about the book was that it also had illustrations and pictures between and of the stories, including images of fractals, the golden ratio, and other small mathematical designs.
If anyone has even a clue about this book, please let me know, because this mystery has been bugging me for years now.