French (format) or Italian formato, the term format refers to the size and measurements of a sheet of paper, a photograph, a table, etc. Examples: "you'll print these documents in A4 format. I have to present them to the Mayor", «manual is in format Ledger, we therefore need a larger folder for storage", "Fabien gave me a framework to format 13 × 18.
The most popular paper sizes are those standardized in 1922 by the standard DIN 476 of a German institution. This standard has served basis for an international equivalent (ISO 216), although many other countries still use traditional systems.
The formats recognized by the ISO 216 standard are divided into three groups (A, B and C), with sizes ranging from 0 to 10. The most popular paper in the world size is A4 size (i.e., series A size 4, equivalent to 210 x 297 mm).
In the United States and some Latin American countries, the formats including that Letter (letter), Legal (Legal) and Ledger are the most used.
All the characteristics technical and formal of a television or radio and a newspaper article program is also known under the designation of format: "actress announced that she will attend a Mexican series in comic strip format", "I love the magazine format radio programs", "I think that it will have to change the format of the magazine if you want to attract more sponsors".
Regarding information technology, a format is a particular structure which allows the computer to convert the information into binary code and vice versa. The formats JPEG (image), video (AVI) and DOC (text file) are the most famous.