9,800,000+ Beautiful Backgrounds - Wallpaper PC HD 2K 4K 5K 8K
CachHayNhat.com shares free beautiful background sample images, beautiful HD 2K, 4K, 5K, 8K wallpaper sets for computers, phones, beautiful slide wallpapers used as Powerpoint backgrounds. High quality, extremely sharp background and wallpaper sets are also used for graphic design in printing and advertising.​

1. What is background?
Background is a common word that translates into English as the background at the back. In fact, background exists a lot around us. You can come across the word background anywhere and easily recognize it, such as on the wallpaper of your computer, phone, tablet, scene in a photo, or background in events.

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2. What is Wallpaper?
Wallpaper also known as laptop computer wallpaper, wallpaper is an image displayed behind the graphical user interface when displayed by the user's computer. It's the image, color, or pattern you see on the main operating system screen after your computer boots up. You can see an example of a Microsoft Windows XP desktop that has a wallpaper depicting white clouds in a blue sky on a green hill.

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Confused between screensavers and wallpapers
Many new computer users confuse wallpaper with screen saver, which is a moving image or animation that is displayed when you are not using your computer.

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3. The most beautiful background
Collection of the most beautiful backgrounds for you to download and use as wallpaper for your PC, laptop and phone. Download the background to use in print design or as a powerpoint presentation slide background.

See more beautiful Powerpoint templates here