The document defines several key computer components: the system unit contains the CPU, memory, power supply and drives; the monitor displays output; speakers produce audio output; the keyboard is used to type instructions; the mouse selects on-screen items; printers produce printed output; and pen drives save file data.

1. Sistem Unit
The case that contains CPU,
memory power supply, disk
drives, and all others
hardware
Monitor
An output device that let
you see your work as
you go
Speaker
Use to produce audio
out outpot
Keyboard
The principal input
device; used to type
instructions into the
computer
Mouse
A pointing device use to
make on screen
selections
Printer
Produce printed copies
of computer output
Pen drive
Save file data