625/50

The term 625/50 refers to PAL/SECAM, the analog TV system used in Europe and other countries. It’s system of 625 scanning lines (presented as 265 scan lines (a field), interlaced, displaying 580 total lines of visible picture (a frame), at 50 hertz. This 50 hertz scanning rate results in a full frame every 1/25 of second. The 45 scanning lines not displayed is known as the VBI (vertical blanking interval), which contains certain signals that control the TV’s scanning system and other functions.

See also HDTV.
Also see Webopedia’s “Did You Know…All About Digital TV . DTV and HDTV“.

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

Top Articles

The Complete List of 1500+ Common Text Abbreviations & Acronyms

From A3 to ZZZ we list 1,559 SMS, online chat, and text abbreviations to help you translate and understand today's texting lingo. Includes Top...

List of Windows Operating System Versions & History [In Order]

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

Generations of Computers (1st to 5th)

Reviewed by Web Webster Learn about each of the 5 generations of computers and major technology developments that have led to the computing devices that...

Snail Mail

Snail mail, also called direct mail, is a slang term for...

CC vs BCC: What...

CC and BCC are two options to add third-party recipients to...

Eventbrite

  Eventbrite is an online event posting, event management, and ticketing website. Eventbrite can...