slower MHz rating or clock speed of the microprocessors it utilizes in its Macintosh systems compares unfavorably to those utilized by other operating systems and translates to slower overall system performance. There have been instances in recent years where the inability of the Company's suppliers to provide advanced PowerPC microprocessors in sufficient quantity has had significant adverse effects on the Company's results of operations. In addition, IBM is currently the Company's sole supplier of the PowerPC G5 processor, which is used in the Company's current Power Mac, Xserve, and iMac products. Freescale Semiconductor, Inc. is the sole supplier of the G4 processor, which is used in the Company's eMac and portable products. IBM has recently experienced manufacturing problems with the PowerPC G5 processor, which resulted in the Company delaying the shipment of various products and constrained certain product shipments during the second half of 2004. The inability of IBM to remedy these problems in a timely manner, avoid manufacturing problems in the future, and to deliver to the Company microprocessors in sufficient quantities with competitive price/performance features could further constrain shipments of products containing the G5 processor and could adversely affect the Company's results of operations and financial condition.

The Company is dependent on manufacturing and logistics services provided by third parties, many of whom are located outside of the U.S.

Most of the Company's products are manufactured in whole or in part by third-party manufacturers. In addition, the Company has outsourced much of its transportation and logistics management. While outsourcing arrangements may lower the cost of operations, they also reduce the Company's direct control over production and distribution. It is uncertain what effect such diminished control will have on the quality or quantity of the products manufactured or services rendered, or the flexibility of the Company to respond to changing market conditions. Moreover, although arrangements with such manufacturers may contain provisions for warranty expense reimbursement, the Company may remain at least initially responsible to the ultimate consumer for warranty service in the event of product defects. Any unanticipated product defect or warranty liability, whether pursuant to arrangements with contract manufacturers or otherwise, could adversely affect the Company's future operating results and financial condition.

Final assembly of products sold by the Company is currently conducted in the Company's manufacturing facility in Cork, Ireland, and by external vendors in Fremont, California, Fullerton, California, Taiwan, Korea, the Netherlands, the People's Republic of China, and the Czech Republic. Currently, manufacture of many of the components used in the Company's products and final assembly of substantially all of the Company's portable products including PowerBooks, iBooks, and the iPod is performed by third-party vendors in Taiwan and China. If for any reason manufacturing or logistics in any of these locations is disrupted by events such as regional economic, business,