If you have an older computer, you may no longer receive updates and security “patches,” and the manufacturer probably does not offer support for your computer. New versions of browsers have important security features that may not run on older operating systems. Firewalls, a relatively new technology, are activated by default by the manufacturer on newer computers, and may be turned off on older machines. Older computers connected to “always on” high-speed Internet may be at risk for security and privacy breaches. The good news is, over the past four or five years, computers have dropped in price so that a new—and more powerful—computer can be purchased for around $400.