For black color, you can use No 21 cartridge, for color printing, you can use No 22 cartridge.

If you want to keep all your emails in one email account, you can do the following by choosing your gmail account:

1- Go to Settings section after loging to your gmail account.
2- Click on ‘Accounts and Import’
3- Click on ‘Import mail and contacts’
4- Enter your email address and password
5- Put an option to create a specific folder to organize your emails.

In  a few seconds, your other emails should start appearing in your Gmail account. The current process should work for Hotmail and Yahoo emails.

Google Desktop is one of the useful software when you need to search the contents of the files on your computer. However, if you have old XP configuration (I am saying old but it still works much better than Vista), it may slow down your computer to boot up. Whenever you need to use Google Desktop, you can prevent starting up Google Desktop. Here is how to do:

1- Click Start+Run and type “msconfig” then hit enter

2- Unclick on Google Desktop under Startup section,

With this way, you can control how Google Desktop starts.