In one sentence, describe what the following article is about: Use your school's computer labs to learn the layout and flow of as many operating systems as possible. To be a successful hacker, you'll need to be comfortable working in Windows, Linux, and OS X. You should be able to perform any major function and find any location without having to think about it. A lot of time hacking is spent looking at a command line and typing commands. Get acquainted with the Windows Command Prompt and the Terminal for Linux and OS X.  See How to Use CMD for more information on the Windows Command Prompt. See How to Get Familiar with Ubuntu Commands for details on the Ubuntu (Linux) terminal. A lot of advanced hacking will occur at the hardware level as you interact with network cards, routers, and memory. Knowing the basics of how a computer works and how components connect to each other will help as you learn to take advantage of systems. See How to Build a Computer to get an understanding of how it all works together. You can gain a lot of basic computer knowledge from taking computer classes at school. Knowing how data is transferred over the internet is essential to be a successful hacker. Learn how the different layers of network models operate. This will teach you where data can be found and how to intercept and change it. See How to Understand Computer Networking for a rundown on network models and layers. Basic networking knowledge is critical for effective, high-level hacking. You may be able to take classes on networking at your school or local community college. Don't just learn from your classes. You should be actively engaging in learning as much as possible. Pick up some old used books on hacking, or sign up for a quarterly publication. Any and all information that you can consume will help increase your hacking knowledge.
Summary: Learn the ins and outs of major operating systems. Get familiar with command lines. Learn how computer components work together. Learn the basics of networking. Read every book on hacking and computers that you can.

In one sentence, describe what the following article is about: If you’re in a hurry, a quick tumble on a medium temperature setting is sure to get things loosened up. The ambient heat combined with the repeated impact from the spinning drum mimics the effects of wearing the leather for a long period of time. Make sure you only leave the item in the dryer for 10-15 minutes a time—any longer than that and it may begin to shrink or scorch.  This method is best reserved for newer accessories that don't bend or flow well, as heat can easily rob the remaining moisture from older leather. The leather should be dry or just slightly damp when it goes into the dryer. It’s not recommended that you wash and dry leather the way you would ordinary clothing. For even better results, throw a heavy sneaker or a few tennis balls into the dryer. The added friction will wear in the item more evenly. Stretch out the accessory beneath the windshield of your car to soak up some midday rays, or hang it up in the bathroom while you take a hot shower. They key is not to let it sit for too long. After a while, direct heat can cause leather to fade or dry out. The steam from the shower will also bathe the leather in moisture, making it doubly effective. Blow drying will accomplish the same thing as a hot room or a trip through the dryer, only it also allows you to target the stiffest, tightest areas. Direct the heat over the fold, creases, hems, and anywhere else you’d like a little more give. When the leather is nice and supple, put it on and wear it until it cools down.  Use a low heat only and keep the blow dryer a safe distance from the surface so you don’t run the risk of burning it. Be sure to complete the distressing process with a coat of nourishing leather conditioner.
Summary: Throw the item in the dryer. Leave the item in a warm, humid place. Blast the leather with a hairdryer.

In one sentence, describe what the following article is about: If you don’t know where the hole is, keep the air mattress inflated as you look. Holes most often appear on the bottom or in the seams, so stand the mattress up against a wall to check. Listen for the sound of rushing air to detect tiny leaks. Try mixing a teaspoon of liquid dish detergent in a bowl of water. Use a sponge to spread the soapy water over the mattress. Bubbles will appear from the leaking area. Circle the leak with the marker so you can find it easily later. This is useful for small holes and tears. You can also use a piece of tape to mark the leak.
Summary:
Listen and look for the leak in the air mattress. Use soap and water if you can’t find the leak. Mark the leak with a permanent marker.