|Product Name||Apple Macbook Air 13" Skin Protective Sticker Decorative Decal|
|Category||Electronics / Photography|
|Amazon.com||Buy on Amazon ~ B00DEVHRQ2|
|Price New||29.99 US Dollars (curriencies)|
|Long Description||This skin decal sticker is designed for MacBook. They are covered with a clear protectant layer for the ultimate in durability, it use a patented repositionable & removable adhesive backing for fast, easy and accurate installation and goo-free removal! They are paper-thin so they do not add any bulk. Skins are easy to apply (no bubbles), durable and easily removable without any residue.|
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Article of interest
A Data Matrix code is a two-dimensional barcode make up of blocks of black and white modules put together to make either a square or rectangular pattern. The information to be encoded can be text or raw data.
Normally, data size is from a few bytes up to 1,556 bytes. The length of the data depends on the symbol dimension used. To make sure the data can be read even when the pattern is slightly damaged, error correction codes are added which increase symbol strength. A Data Matrix symbol can store up to 2,335 alphanumeric characters. Here is a sample you can scan.
Data Matrix symbols are rectangular in shape and usually square. As more data is added, modules are put together to allow for the data and error correction. Each module can be identified by the "L" shaped black line that runs down the left and across the bottom of each module. In the sample shown above, there are four modules. These "L" shaped sections are known as the "finder pattern". The top and right border of each module are made up of alternating light and dark blocks. Light blocks represent 0 (zero) and the dark blocks represent 1 (one). These are known as the "timing pattern". All of the blocks in the middle of each module make up the data and check codes. The entire pattern can range in size from 8x8 to 144x144 in size.