1. Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
proficiency testing. proficiency testing. a program in which specimens of quality control material are periodically sent to members of a group of laboratories for analysis, with each laboratory's results compared with those of its peers. See also: proficiency samples.
Perhaps now you are curious to learn how programmers write software. A program is a set of step-by-step instructions that directs the computer to do the tasks you want it to do and produce the results you want. There are at least three good reasons for learning programming: Programming helps you understand computers.