5. Definitions From SAA’s Glossary of Archival and Records Terminology MOVING IMAGE: A generic term for a visual work that has the appearance of movement FILM: A thin sheet of plastic, in a sheet or roll, coated with light-sensitive emulsion to be exposed in a camera VIDEOTAPE: Magnetic tape used to record video and audio signals Understanding Moving Images
6. VIDEO: Moving images, with sound, recorded electronically [in analog format, on magnetic tape or optical disk] [ DIGITAL VIDEO: A moving image that is created as, or transferred or transcoded to, digital information onto optical or magnetic media] MACHINE DEPENDENT: Requiring a specific type of hardware to operate Understanding Moving Images Definitions From SAA’s Glossary of Archival and Records Terminology
7. ANALOG: Continuously varying in correlation to a physical process, [ analogous to the sensory signals found in nature] DIGITAL: Representing information through a sequence of discrete units, especially binary code Understanding Moving Images Definitions From SAA’s Glossary of Archival and Records Terminology
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9. . . . Content Value Understanding Moving Images
10. Zoetrope Flip Book History & Science Understanding Moving Images “ Persistence of Vision”
44. Anatomy of a Digital Video File Reformatting FRAME SIZE: Width and height of the frame, measured in pixels ASPECT RATIO: Ratio of width to height of the frame in pixels FRAME RATE: Output frames per second BITRATE: Determines the amount of data needed to best represent the quality of the video, measured in megabits per second BROADCAST STANDARD: Video frame rates and lines of resolution used in different parts of the world. (Americas: NTSC) AUDIO: File format, codec, bitrate, sample rate, bit depth, number of output channels (mono or stereo), etc.