There is a wide difference between the internal system unit and the external system unit. The internal system unit is usually mounted on the motherboard inside the computer while the external system unit is independent of the computer like an external drive.
78tgukityu
urat
label the internal parts of the cpu
BUS
In computers, a unit which delivers information from the computer to an external device or from internal storage to external storage
The external part is the part of system unit which can be seen, include the system case and the power button. And the internal part refers to the things inside the system unit example the motherboard, the expansion slot and disk driver
kantutero
State
unit of internal resistasnce is ohms too. V = I(R+r) V voltage across the circuit I current in the circuit R external resistance r internal resistance unit of internal resistasnce is ohms too. V = I(R+r) V voltage across the circuit I current in the circuit R external resistance r internal resistance
All this is done by theArthimatical Logical Unit(ALU) in theCPU.
internal modem
external