is where you can interact with the screen and control it
uAn optical is a piece of equipment lasers to read or write information on a disc this piece of equipment is most associated with computers.
uIs a hardware device that allows information to be stored and retrieved on a computer.
uA monitor is a piece of equipment which nearly everything can work on like computer discs or DVDs
uA hard drive is something that permentely stores something within it all depends on how much the hard drive can store there are generally 3.5 and 2.5 amount of space