Digital video is a representation of moving visual images in the form of encoded digital data. This is in
contrast to analog video, which represents moving visual images with analog signals. Digital video
comprises a series of orthogonal bitmap digital images displayed in rapid succession at a constant rate. In
contrast, one of the key analog video methods, motion picture film, uses a series of photographs which are
projected in rapid succession. Standard film stocks such as 16 mm and 35mm record at 24 frames per
second. For video, there are two frame rate standards: NTSC, which shoot at 30/1.001 (about 29.97) frames
per second or 59.94 fields per second, and PAL, 25 frames per second or 50 fields per second. Digital video
was first introduced commercially in 1986 with the Sony D1 format, which recorded an uncompressed
standard definition component video signal in digital form instead of the high-band analog forms that had
been commonplace until then. Digital video can be copied with
What is a video?
Is a electronic medium for the recording,
copyin, playback, broadcasting and display
of moving visual media.
Kind of video:
While the idea of explaining things in a video format is nothing new, the term “Explainer video” is. Prior to
2012 “explainer video” didn’t even exist as a Google search phrase. But since then, it has exploded. Popular
animated videos like “The Social Media Revolution” that went viral in 2011 helped spark a trend for these
explainer type videos that used motion graphics. Motion graphics involves any type of animated
typography or graphics that usually combine with a great music track or voiceover. Whiteboard Videos
Whiteboard videos have become one of the most popular styles of explainer videos. This was perhaps
sparked by a popular 2012 UPS television campaign involving a spokesman drawing images on a
whiteboard as he’s explaining things. Like the term “explainer video”, a “whiteboard video” has become a
popular search term in the past couple years. In addition to being popular, these whiteboard videos have
also been proven to be effective, especially for B2B businesses. That’s be
What are the differences between Video Digital and Video Analog.
Analog signal is a continuous signal which represents physical measurements. Digital signals are discrete
time signals generated by digital modulation.
What are the software for playing Digital Video.
A media player is a computer program for playing multimedia files like videos movies and music. Media
players display standard media control icons known from physical devices such as tape recorders and CD
players, such as play , pause , fast forward, backforward, and stop buttons. Mainstream operating
systems have at least one built-in media player. For example, Windows comes with Windows Media
Player while OS X comes with QuickTime Player.Linux distributions may also come with a media players,
such as SMPlayer, Amarok, Audacious, Banshee, MPlayer, Rhythmbox, Totem, VLC, and xine.