In 1975, the 20-year-old Jobs and Wozniak set up shop in Jobs' parents' garage, dubbed the venture Apple, and began working on the prototype of the Apple I. To generate the $1,350 in capital they used to start Apple, Steve Jobs sold his Volkswagen microbus, and Steve Wozniak sold his Hewlett-Packard calculator.
carboxyl group. in organic chemistry, group of atoms within a molecule that is responsible for certain properties of the molecule and reactions in which it takes part. Organic compounds are frequently classified according to the functional group or groups they contain.
Compounds with carboxyl groups are called carboxylic acids or organic acids. The carboxyl group can act as an acid when by donating a proton (H +) to a solution and becoming ionized. Under biological conditions at pH~7, carboxyl groups are usually deprotonated, meaning they lose a H + , and become negatively charged.