What is “digital”? Etymologically (17th Century), it is what has to do with numbers and their calculation. But since the advent of computers in the 1960s, “digital” refers to signals (text, image, sound, multimedia, etc.) transformed into numbers so that they can be processed by computers.
The digital is opposed to analog; for example, a vinyl record (analog) preserves the sound by burning a groove whose curve is analogous to the vibrations in the air, whereas in digital (CD, file, streaming), the sound is preserved in the form of a series of numbers representing, in a simplified way, this same curve of the vibrations of the air.
In summary, analog is a trace of the real (example: the negative in silver photography), whereas digital is a digital coding of this trace.
Until now, computers have used the binary code: numbers are represented as 0 and 1 only (the “bit”, the elementary unit of digital information). It is a very poor information (binary...), that’s why the bits are organized by groups of 8 (“the byte”). These 8 bits allow 256 possible combinations of 0 and 1, so one byte can store a number between 0 and 255, which can, for example, represent a letter of the alphabet, thanks to an international standard called the ASCII code. It is thanks to this type of common standard that computers can communicate with each other.
For example, each character in the text you are reading corresponds to a byte, which itself is a group of 8 bits. Bits can be stored in a thousand ways: black or white squares (the QR codes), magnetic magnetization (hard disks), light or dark (optical fibres), sound or silence (magnetic tapes and old modems), microcassette or flat (CDs, DVDs and Blu-ray discs) . The digital code can change media without losing information, unlike analog, which is dependent on its medium (you can’t put a vinyl disc in a cassette player for example).
We extend the term “digital” to all its uses: “digital video”, “digital cultures”, “digital economy”, “digital rights”, etc.
43rd Grenoble Open Air Short Film Festival : film analysis course.
The Grenoble Open Air Short Film Festival always starts with a two-day course. For the 43rd edition of the festival in 2020, the workshop is animated by Benoît Labourdette, and takes place in video, on the theme “Short film, digital and 21st (...)
Stage de 5 semaines (formation en présentiel, à distance ou mixte).
Cette formation approfondie proposée par le CEFPF, dont le formateur référent est Benoît Labourdette, permet l’appropriation des nouveaux langages, technologies et pratiques de l’audiovisuel numérique, dans une perspective de construction (...)