ASCII Table and Hexadecimal Number Format

This is exactly why in the very birth of private computers ASCII table was produced. This table gives computer information about how to map human readable symbols towards the statistical codes.

Prior to going into additional information about cc0 text art table let us rapidly review what hexadecimal number format is. Being aware of this numbering product is quite helpful because most low-level computer manipulations are carried out inside it. Also ASCII table digits are frequently encoded within this format.

So when you achieve F it will likely be 15. Counting in hexadecimal is very much like decimal system so when you achieve maximum digit within the last position you have to increment a digit in the past position. Then when we add 1 to F we'll get 10 since F is really a maximum digit in hexadecimal system. Translation between two systems can also be really simple. If XY is really a number in hexadecimal system (where X and Y are digits) to obtain decimal number you have to take X*16 Y.

You'd be surprised but the majority of us who've ever used Home windows operating-system had an encounter with hexadecimal number format. You most likely keep in mind that in Home windows 95-98 as well as XP days lots everyone was complaining about BSOD (or blue screen of death of dying). So we still see these screens now every so often. Should you take a look at just about any BSOD you will find that it's "memory dump section" that has only hexadecimal figures inside it. Also you will find that all errors codes have been in this format too.

With this particular understanding let us return to ASCII table. Not every symbols within this table are readable. Symbols numbered from  to 31 are utilized to encode special control codes that have been extremely popular in DOS os's. Now that a part of ASCII table isn't used.

Components from 48 (hex 30) to 57 (hex 39) represent figures while elements in ranges 65 (hex 41) - 90 (hex 5A) and 97 (hex 61) - 122 (hex 7A) represent alphabet. All of those other table can be used to encode other symbols utilized in text like braces, us dot, comma, quotes.

Then when you type some text on the pc it's kept in type of ASCII codes. For instance word "cat" could be coded as 63 61 74 (in hexadecimal) where c is encoded as 63, a as 61 and t as 74.

About fifteen years ago when computers could display only textual information ASCII art was extremely popular. ASCII art is a method to represent graphic images using figures from ASCII table. While they don't look very fancy it's very simple to recognize what's shown on the image. You can observe some pictures in ASCII art portion of our website.

In the current computer ASCII table was mostly substituted with UNICODE and UTF for advanced encoding tables but inside them British text is encoded with similar figures as with ASCII.