Ron White is a senior editor at PC Computing where he writes the CD-Ron and Net Kahuna columns. Founder of one of the earliest PC user groups, he has been writing about computers for 15 years, and is the author of two other books, How Software Works and How Anyone Can Fix and Rev Up PCs. The second edition of How Computers Work won an award for best non-fiction computer book from the Computer Press Association. Timothy Downs is a long-time artist with Ziff Davis Publications. He currently illustrates for PCComputing and has been illustratior for the popular How It Works stories there. He is the original artist for the first edition of How Computers Work.