Most barcodes in the US are 12-digit UPC barcodes, with ten digits at the bottom of the code and one small number to each side. Impress your friends by asking them to select a random item from the kitchen with a removable label and cut the numbers off of the UPC barcode; you can then proceed to read the numbers encoded in the lines.

Steps:

1. Note that barcodes are made up of both black and white lines. The white spaces in between the black lines are part of the code.

2. Understand that there are four different thicknesses to the lines. Henceforth, the skinniest line will be referred to as “1,” the medium-sized line as “2,” the next largest line as “3.” and the thickest is “4.”
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The release of the MacBook Pro was big news: It was Apple’s first laptop with two processing cores, the first to use Intel chips, and had the feature set and price tag professional users are accustomed to. The new MacBook, on the other hand, replaces both the iBook and the 12-inch PowerBook G4 in Apple’s product line. As you might expect from a product that replaces both a consumer and professional system, the MacBook is a fascinating hybrid of high-end features and cost-conscious engineering. Now that we’ve spent several days with these new laptops, here are some answers to several burning MacBook questions.

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We found out the phone number to both elevators at Northside is 3006. To dial in from the outside it’s 574-520-4872 and then the extension. We did try to dial direct to the phone using the four digit extension 574-520-3006, but that didn’t work so we figured that it’s such an old phone and extension that they forgot about it. Most of the extensions that begin with a 4 or a 5 you can dial direct. A directory of all the extensions would be nice to find The extension for room 205 in North Side is 5169.