Sound recording and reproduction is the electrical or mechanical re-creation and/or amplification of sound, often as music. This involves the use of Audio components such as microphones, recording devices and loudspeakers. From early beginnings with the invention of the Phonograph using purely mechanical techniques, the field has advanced with the invention of electrical recording, the mass production of the 78, the Magnetic wire recorder followed by the Tape recorder,the Microgroove recording, and the LP record. The invention of the Compact cassette in the 1960's, followed by the Walkman, gave a major boost to the mass distribution of music recordings, and the invention of Digital recording and the Compact disc in 1983 brought massive improvements in ruggedness and quality. The most recent developments have been in Digital audio players like the Apple iPod. Video is the technology of capturing, recording, processing, transmitting, and reconstructing moving pictures, typically using celluloid film, electronic signals, or digital media, primarily for viewing on television or computer monitors.