No. The CPU means Central Processing Unit. This is the main processor of the computer. A system unit is the hole unit (or personal computer).
Central Processing Unit, CPU
CPU
A damaged CPU is generally not user serviceable, assuming you are referring to the CPU chip, and not the system unit.
It is referred to as a 'base unit', and sometimes 'tower'
control unit
A computer system unit is the case with the motherboard and all the ports. The box you unplug and walk around with. The CPU is the Central Processing Unit, this is a chip on the motherboard that does all the processing.People erroneously refer to system unit as CPU.
In general when speaking of computer hardware it is the CPU (central processing unit) also called the processor. As a whole unit though, it is a combination of the CPU, the Motherboard, RAM, and the operating system.
system unit
cpu
The system unit is the box where all processing takes place. All other devices are attached to it. The Central Processing Unit (CPU) is the heart of the computer, and is inside the system unit.
Job control is a system function and is handles by an operating system. The CPU does not candle any job control functions. Job control is on a much higher level that the CPU is not designed to handle.