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typewriter
Commonly a separate type element (called a typebar) corresponds to each key, but the mechanism may also use a single type element (such as a typeball) with a different portion of it used for each possible character. http://www.juntadeandalucia.es/averroes/centros-tic/14002984/helvia/aula/archivos/repositorio/1500/1663/html/web/carlos_molina/la_maquina_de_escribir.html
Luisa Fernanda Ruiz (María José Zapata) -
film camera
The frames are later played back in a movie projector at a specific speed, called the frame rate (number of frames per second). While viewing at a particular frame rate, a person's eyes and brain merge the separate pictures together to create the illusion of motion. -
telegraph and morse code
Telegraphy is the long-distance transmission of textual or symbolic (as opposed to verbal or audio) messages without the physical exchange of an object bearing the message.
Telegraphy requires that the method used for encoding the message be known to both sender and receiver. Many methods are designed according to the limits of the signalling medium used. The use of smoke signals, beacons, reflected light signals, and flag semaphore signals are early examples. -
vinyl record
Vinyl records may be scratched or warped if stored incorrectly but if they are not exposed to high heat, carelessly handled or broken, a vinyl record has the potential to last for centuries. The large cover (and inner sleeves) are valued by collectors and artists for the space given for visual expression, especially when it comes to the long play vinyl LP. -
black and white tv
Facsimile transmission systems pioneered methods of mechanically scanning graphics in the early 19th century. The Scottish inventor Alexander Bain introduced the facsimile machine between 1843 and 1846. The English physicist Frederick Bakewell demonstrated a working laboratory version in 1851. The first practical facsimile system, working on telegraph lines, was developed and put into service by the Italian priest Giovanni Caselli from 1856 onward -
floppy disk
Alternatively referred to as a floppy or floppy disk, a floppy diskette is a type of storage media, capable of storing electronic data, like a computer file. The floppy diskette was first created in 1967 by IBM as an alternative to buying hard drives, which were extremely expensive at the time. -
sony walkman
The original prototype was built from a heavily modified Sony Pressman, a lightweight, compact tape recorder designed for journalists. By replacing the recording head with a playback head, and the speaker with an amplifier, Sony engineers were able to combine the portability of the Pressman with the stereo experience of the TC-D5. By using lower-end components to reduce the price, and enclosing the parts in an attractive casing, they had solved Ibuka's challenge. -
music cassette
Compact Cassettes contain two miniature spools, between which the magnetically coated, 1/8" wide polyester-type plastic film (magnetic tape) is passed and wound. -
VHS cassette
Optical disc formats later began to offer better quality than analog consumer video tape such as standard and super-VHS. The earliest of these formats, LaserDisc, was not widely adopted. However, after the introduction of the DVD format in 1997, VHS's market share began to decline
