Following a recent rise in computer component prices, Apple Computer Inc. has decided to increase the price of its iMac computer by 20,000 yen in Japan and $100 in the United States, effective immediately, Steve Jobs, Apple's chief executive officer, revealed Thursday.

"The price for all flat screens has gone up 25 percent in the last few months," Jobs said during a keynote address at a crowded Mac computer show that opened earlier in the day at Tokyo Big Sight in Koto Ward.

"This is an industry-wide issue, not just for Apple."