A reflex test of the knee is the basis for the term knee-jerk reaction.. A knee-jerk reaction is typically impulsive in nature and doesn't allow for someone to think things through. An outburst of anger is an example of a knee-jerk reaction.
As Figure 1 shows, the central processing unit consists of two parts: The control unit and the arithmetic/logic unit. Each part has a specific function. Before we discuss the control unit and the arithmetic/logic unit in detail, we need to consider data storage and its relationship to the central processing unit.
Central Processing Unit. The CPU (Central Processing Unit) is the part of a computer system that is commonly referred to as the brains of a computer. The CPU is also known as the processor or microprocessor.The CPU is responsible for executing a sequence of stored instructions called a program [program: a list of instructions written in a programming language ] . This program will take inputs [input: Everything that goes into a system.The three most common inputs in industry are physical inputs, labour and capital.he CPU is responsible for executing a sequence of stored instructions called a program [program: a list of instructions written in a programming language ] . This program will take inputs [input: Everything that goes into a system. The three most common inputs in industry are physical inputs, labour and capital.