MakeUseOf Answers is a Q&A forum. Our community solves your questions about anything related to the Internet and computers. It's free. Ask A QuestionQuestions tagged "technology explained" All questions Resolved Unresolved Lithium-ion New Nexus 7 3950 mAh vs Lithium-polymer Ipad 4 11.560 mAh ? Can you explain what a tablet computer is, and broadly what its uses are? Why does my external IP change every day? Why does 4G need to turn off when the device is connected to a Wi-Fi network? Please share your opinion: Are we becoming a generation D.R.O.N.E? What is a SIM card and what uses does it have? What is the difference between 1G, 2G, 3G and 4G internet technology communications? How is the IMEI number used to track the location of a device? What is difference between disk wiping and defragmentation? Can you explain what a RAID is? What is the difference between newline and carriage return?