IT Education Tips

A computer’s architecture is its abstract model and is the programmer’s view in terms of instructions, addressing modes and registers. A computer’s organization expresses the realization of the architecture. Architecture describes what the computer does and organization describes how it does it.

Architecture and organization are independent; you can change the organization of a computer without changing its architecture. For example, a 64-bit architecture can be internally organized as a true 64-bit machine or as a 16-bit machine that uses four cycles to handle 64-bit values.

The difference between architecture and organization is best illustrated by a non-computer example. Is the gear lever in a car part of its architecture or organization? The architecture of a car is simple; it transports you from A to B. The gear lever belongs to the car’s organization because it implements the function of a car but is not part of that function.

Last 5 posts by Deepak Shrivastava

• Mobile accessories for BB and Droid - December 8th, 2011
• Moonlighting More Common For Teachers - November 30th, 2011
• Center for the advanced study of India - November 29th, 2011
• Best Online Degree Programs - November 25th, 2011
• How To Find Discount College Textbooks - November 23rd, 2011