What is Driver Software and Why It is Required ?

Driver Software is nothing but a Software (Code) or an interface betwwn Hardware and System Software (Oerating Systsm), In other Words, "HArdware is used by OS or Application Software only because of Drivers". We have lot of Drivers Pre Installed in OS so we need not install each and every driven in new OS, Only the latest or Odd Hardware are required to be installed separately using their Driver CD's. (Note : None of the Hardware can be used without Driver). Also remember that For Each OS the Drivers may vary.

Which are the most Earnable Keywords for Google Adsense

There are no specific data available, but as per few studies and reports it's shown that these are few keywords that are most likely to be earning good on Google Adsense

1.Health, Nutritional Food, Diet, Yoga, Exercise, Tummy Fat, Reduce Weight
2.Loan, Mortgage, Term Loan, CC, OD, Finance, Funding
3.Insurance, Life Insurance, Term Insurance, 
4.Job, Vacancy, Recruitment, Salary, Offer, Package