《大学体验英语第一册课件》ECEI-U07-4C-S.pptVIP

Do you know ... Let’s learn ... Unit 7 Return to Menu Pro Circuit Do you know ... Leading Computer Companies Pro Circuit In some professional sports such as tennis, golf, bowling, and track, professional athletes travel from town to town and sometimes from country to country competing in weekly events. This is called the Pro Circuit or Pro Tour. Only the best players are eligible to compete every week without entering special qualifying tournaments or getting sponsors’ exemptions. In each sport some competitions are listed as major events, such as the US, British, French, and Australian Opens in tennis or the US and British Opens, Masters, and PGA (Professional Golf Association) Championship in golf. Photos Pro Circuit In some professional sports such as tennis, golf, bowling, and track, professional athletes travel from town to town and sometimes from country to country competing in weekly events. This is called the Pro Circuit or Pro Tour. Only the best players are eligible to compete every week without entering special qualifying tournaments or getting sponsors’ exemptions. In each sport some competitions are listed as major events, such as the US, British, French, and Australian Opens in tennis or the US and British Opens, Masters, and PGA (Professional Golf Association) Championship in golf. Leading Computer Companies The two leading computer companies in the world are IBM (International Business Machines) and Microsoft. IBM specializes in hardware, and Microsoft specializes in software. They regularly outsell all their competitors combined, and this fact plus the various agreements they have with one another creates a virtual monopoly which the US government has tried to break up. Windows is clearly the dominant software format, and this may be Microsoft’s greatest contribution to the computer industry. The PC (personal computer) was actually pioneered by other companies such as Apple, but IBM has met this challenge with PC’s of its own and still dominates th