The Meaning of HD

The that is HD:

HD is an acronym whose meaning may refer to “High Definition” or “Hard Disk”.

The expression “High Definition” means “High Definition”. HDTV is a characteristic of the tv sets that receive digital signal and present the image with high resolution.

The Meaning of HD 1

The format of these TVs is the widescreen (16:9), unlike the TVs that are analog that have the 4:3 format.

The standard HDTV is used in televisions HD Ready or Full HD. The diferenção between the two is the detailing of the image. While the HD Ready has 1366 x 768 pixels, the Full HD display reaches 1920 x 1080 pixels, featuring a full resolution of the image.

The expression “Hard Disk” means “Hard”. The hard disk is the permanent memory of a computer and stores all of the information that are saved by the user, in addition to specific applications of the operating system.

The Meaning of HD 2

The HD is also called “secondary memory”. Is the physical memory and non-volatile. Is different from “RAM” is exactly why you save the information even when the computer is turned off.

The hard disk is a device with large storage capacity and data that comes built-in to the computer.

The external HD, connected to a computer through a USB port, it is an alternative very popular to store all types of data: music, movies, photos, backup, etc.

The Meaning of HD 3

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