Dear friends, today here I will tell you about hard disk drive. hard disk is the most important part of your pc. hard disk keeps and store your data permanantly and so called non valatile memory, according to current information there are comes two type of hard disk that is the SATA which stands for serial advance technology and another one is the IDE that stands for integrated device electronic also called PATA. but sata is the newer standard and sata drives are faste as compared to IDE or PATA. so only go for SATA which is faster. and one of most useful think is your hard drive mostly away from dust and heated places. thanks for viewing my tips and advice its helpful you.