The first digit assigned to all Visa cards is four, and the second through sixth numbers are connected to the financial institution. Then, either the seventh through 12th numbers, or the seventh through 15th, are the account number, while that final 13th or 16th digit is the check number.
Limited color, Lossy format, small file. GIF(Graphics Interchange Format) is limited to an 8-bit palette, or 256 colors. This makes the GIF format suitable for storing graphics with relatively few colors such as simple diagrams, shapes, logos and cartoon style images.
Large format. Large format refers to any imaging format of 4Ã5 inches (102Ã127 mm) or larger. Large format is larger than medium format, the 6Ã6 cm (2Â¼Ã2Â¼ inch) or 6Ã9 cm (2Â¼Ã3Â½ inch) size of Hasselblad, Rollei, Kowa, and Pentax cameras (using 120- and 220-roll film), and much larger than the 24Ã36 mm (~ 1.0x1.5 inch) frame of 35 mm format. The main advantage of large format, film or digital, is a higher resolution at the same pixel pitch, or the same resolution with larger pixels or grains.