The basic component inside the system unit is the Central Processing Unit.
processor
With solder and hot-melting glue.
program machine control unit processing epuipments
power supply HDD floppy disk drive
System unit refers to the housing plus the components inside the box. While a computer case is just a 'case' itself w/o the hardware components attached to it.
The five components of a computer:input devices, output devices,system unit,storage devices,and communications devices.
cars
system unit is used to control the parts of the computer system
These are located in the system unit or processing unit.
Cpu: central processing unit alu: arithmetic and logical unit memory processor i/o devices
An input/output (I/O) unit, a control unit, and one or more arithmetic logic units (ALUs)
Newtons is the basic metric system unit for weight