Tablet PCs have become an essential tool for entertainment and business. With a tablet pc, you can check your emails or contact with business partners. However, with various tablet pc available in the market, it becomes difficult to buy tablet pc with the most enjoyable condition at a favorable price. Needs: Before purchasing a tablet pc, you should certify your needs. Tablet pcs comes with different functions. A tablet pc is a combination of smartphones and laptops. Most people find tablet pc useful rather than a laptop because they are light and convenient to carry, and you can even put then in your pockets. Also, a tablet pc can offer longer lasing energy. some people may argue that tablet pc is not needed because they have already got a smartphone and laptop. For businessmen, tablet pcs serve as a assistance even when he is out for business. So before buying a tablet pc, make sure that you need it and always buy the one that meets your demands. Price: After making up your decision, then you can go ahead and purchase a tablet pc! During the purchase, the most important factor can be the price. Prices of tablet pcs vary significantly. Your budget is the determining element during the process. Try to figure out your affordable price and then pick up the ones you like within your budget. Functions: Functions may differ along with the prices. As the core of all computers, the system is the most important issue you should consider. Available systems in the market are Apple's OS, Google's Android and BlackBerry tablet OS. BlackBerry Tablet OS supports and integrates with the BlackBerry service and Android operating system offers full integration with Google services. Apple's iOS is very intuitive to use. Selecting operating systems should depend on your taste. Generally, an Android tablet pc is much cheaper than BlackBerry or Apple. If you are tight in your pocket, then it is suggested that you buy an Android tablet pc. Specification: The basic specifications of tablet PCs are CPU, screen size, RAM, hard drive space and battery life etc. It is familiar to us that Apple iPad 2 has a 9.7-inch screen, 1 GHz dual-core CPU, 512MB of RAM, 10 hour battery life and storage is available in 16GB, 32GB, and 64GB models. CPU decides the speed when you are browsing website, watching movies and playing game. So select a good CPU can make the tablet pc last longer. If you care about the screen, storage or other issue, you can also make some comparisons. Selecting a good tablet pc can sometimes be time consuming. If you are determined to buy one, then select a good one because it is for your daily use.