How do I properly clean my iMac's screen and keyboard?

.Do not use water.Do not spray on keyboard,spray on cloth.You can use spray Lense Cleaner.Turn computer off when cleaning.

Use a cloth, very lightly moistened with distilled water, to clean the screen, and then wipe it dry with a clean microfiber cloth or towel. You can also use "LCD screen cleaner" available at any electronics store, but it's usually $10.

Whatever you do, NO Windex, and do not spray the cleanser directly on the screen.

For the keyboard, use a dry cloth to clean off any surface dust or oil that came from your fingers. Turn the keyboard upside down and use short bursts of canned air to loosen any hair or small dust particles.

I suggest you get an advice from Apple because they change their systems very often. You can also buy some computer screen cleaning liquid from market. All you have to do is look at the description if it says computer screens.

Thanks.