1 byte It is the minimum space allocated to information expressed in digital language. Corresponds to8 bits.
100 bytes. It corresponds to the memory space that an SMS mobile message occupies on average.
50 kilobytes (50.000 bytes).It is the “weight” in memory of a text of 25 pages.
50 megabytes (more than 50 million bytes)it occupies the image of a computerized axial tomography (CT) scan, an information equivalent to a multivolume encyclopedia with 25,000 pages of text.
600 megabytes. This is the average memory required for a music CD.
3 gigabytes (more than 3 billion bytes).Memory occupied by a DVD movie.
100 gigabytes. It is the value of the information that passes in 40 seconds of telephone conversation through a fiber optic cable.
1 terabyte (more than 1 trillion bytes)it is the space occupied by all the X-rays taken in a large hospital during a year. Equivalent to 5 million 100-page books. 200 terabytes is the estimated space that all the information printed in a year would occupy in magazines, books, brochures, documents, photocopies …
8 petabytes (more than 8,000 trillion bytes)occupies all the information available on the internet. 10 petabytes would be needed to digitize the world cinematheque, which would number around 400,000 titles.
800 petabytes. Space that would occupy all the musical cassettes in the world. There are an estimated 7.9 billion units of 90 minutes each.
3.5 exabytes (more than 3.5 trillion bytes)they would be necessary to archive all the photographs in the world. About 80 billion new photographic images are produced each year.
71 exabytes.Precise space to store the total information that man has generated and that is available today. It would take 177,550,000 computers with a power of 400 gigabytes.
