It is possible to bypass this, so therefore, this isn't the solution to completely defeat SQL injection attacks.
Answer:
A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions. The term has been used in the computer industry at least since the early 1960s.
I honestly have no idea on what this is... but im guessing its some sort of tool or food in somebodys mouth... probably isn't but oh well..