Porter's Five Forces analysis of the computer industry shows:
1) Threat of substitute products is medium as PCs come in many configurations but Mac faces no direct competition.
2) Bargaining power of suppliers is medium as Apple chooses suppliers based on quality but they compete for contracts.
3) Bargaining power of buyers is high as customers are loyal to Macs but PCs dominate the market.
4) Threat of new entrants is low due to the need for large capital and dominance of Dell, HP, and IBM.