- peripherals: used for input and output information
- Mouse I:optical & laser mouse
- keyboard I
- printer O: have multi function printers O, scanners I and Inkjet O
- flash drive IO
- monitor O: LCD and CRT monitors can be input if it is touch screen
- High Definition contains more pixels
- Drives floppy drive, CD ROM drive, DVD drive, Blue ray drive
- Hard drive & USB drive can be external
- Towers have expansion slots that can be interchanged with different componenets
- Peripherals needed: keyboard, Mouse, Monitor, Printer, Scanner, Storage drives, Game controller/joysticks
I= Input
O= Output
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