A computer is built up from layers of components, like a CPU, logic circuits, logic gates, and transistors.
Which of these is the best description of a CPU?
a. The central processing unit (CPU) is the main component of a computer that performs most of the processing inside the computer.
b. A CPU is an integrated circuit that manages and executes instructions to carry out basic arithmetic, logic, control, and input/output (I/O) operations.
c. A CPU is a collection of logic circuits that interprets and executes instructions from computer programs.
d. A CPU is a semiconductor device consisting of millions of transistors and other electronic components that are essential for computer operation.