You come round after a few seconds and feel back to normal. Some people feel very tired after they've come round. Usually, fainting happens for a reason, like when you're in pain or have been standing for a long time in a hot place. Fainting happens because the brain needs a constant supply of oxygen.
hard drive noun [C] uk / ËhÉËd ËdraÉªv / us / ËhÉËrd ËdraÉªv / B2 a part of a computer that reads information on a hard disk, or a separate device that can be connected to a computer in order to do this
In a computer system the hard drive is the non-volatile storage device that stores your data (documents, images, songs), OS (Windows probably ) and applications/software (chrome, office,...). The main system memory is the SDRAM/DDR (your 2/4/8/16 GB) which are very fast but as soon as the power go off, the infirm action is lost.