computer peripheral equipment, namely, video digitizers, audio digitizers, analog to digital audio converters, national television standards committee to red-green-blue synchronization video and signal converters, sync generators, video local area network controllers, video monitor controllers, monitors, audio amplifiers and loud speakers, keyboards, mouse; data recording apparatus connector for storing and managing multimedia data based on computer hard disk; video disk recorder; data processing equipment, namely, data processors; computer software for editing, modifying, composing, storing graphs and images in the audio and video field and for managing multimedia database; virtual studio system software for generating a virtual scene by using computer graph technology and realizing the combination of a virtual scene and real persons with tracking and locating technology to produce television programs; non-linear producing and broadcasting network software for editing images to compose programs in later stage, producing advertisement and film leader of teleplays, and broadcasting digital signals in the video field based on hard disk storage; subtitle generator system software for overlapping subtitle, animation and motion video images to produce television programs; multimedia audio and video non-linear editing system software for editing images and sound and composing the same to produce television programs based on data storage medium; program storage and management software for storing and managing multimedia data based on data storage apparatus; playing control software for controlling the play of digital video and audio signals; central processing unit, micro-processors, satellite processors, signal processors; computer hardware and software for non-linear digital and analog video and audio editing; integrated circuit board; audio workstation comprised of computer hardware and software used to manipulate, edit, record, play, and create digital audio data; video tape recorder; television camera; instruments for producing and management of instructional programs, namely, the software for producing and management of instructional programs