What Code or coding is
The act of creating computer programs, Web sites, and other applications. "Code" refers to the typed program instructions that programmers write. The written code is interpreted into a language that a system can read and execute. A favorite term among Web developers, code is often mentioned with interesting verbs. For example, you may hear programmers say, "We're busy slinging code," which means they are writing a computer program or programming a database or Web site.
The meaning of Affiliate marketing
A revenue sharing arrangement between online advertisers or e-commerce merchants and online publishers or Web site owners, whereby payment is based on performance measures, such as the number of sales, clicks, or registrations that the affiliate refers. In other words, two companies agree to link to one another; if someone clicks from site A to buy something at site B, site A gets a commission on the sale. Affiliate software provides the tracking and reporting of commission-based activities (the sales, clicks, or registrations). Amazon.com pioneered affiliate marketing by getting as many other Web sites as possible to join its affiliate network and sell its products, thereby greatly extending its marketing reach.