What are the different computer architecture?

Answer:
The 3 main architechtures in use are, i386 (Intel/AMD Based), PowerPC (Older Apple, IBM), and Sun SPARC, they each have their advantages and disadvantages, the most common is i386, its what all windows computers, and now apples Macintosh line use.
First answer by Lucaspeyatt. Last edit by Lucaspeyatt. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 2 [recommend question].