Computer Organization

• Recall that the two main functions of the processor are control and arithmetic/logic. These are represented by the control unit and the ALU, respectively, in the Von Neumann model.
• The ALU includes registers and circuits for doing the basic arithmetic and logical operations.
• Registers...
• can be thought of as fast memory locations;
• are relatively few in number (e.g., 16 or 32);
• are typically large enough to hold a single integer or floating point number;
• are used to hold inputs to, and outputs from, the arithmetic and logical operations;
• are used for temporary storage of intermediate results.

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Last Updated 2001/10/10
© L.Heath, 2000, extensively modified by J.A.N. Lee, 2001.