The computerization of business, production processes, trade and even entertainment leads to the fact that specialists who understand the principles of computers are becoming more and more in demand. In order to earn money on knowledge of computer technology, sometimes you don't even need to graduate from a specialized university.
Working with organizations
Many people believe that "geek" necessarily means "programmer". To some extent, this is true, since everyone who studies computers is familiar with at least the basic foundations of programming. However, not all computer scientists are professional programmers, that is, those who write programs for money. Nevertheless, if you know one or several popular programming languages, then this can become a source of both additional and basic income. The Internet is replete with ads inviting programmers to fulfill one-time or permanent orders, while the option of remote work on a free schedule is quite acceptable: the main thing is to meet deadlines.
There are many directions in programming, which almost do not intersect with each other. You should not try to grasp the immensity, it is better to focus on one thing, for example, sites or games.
Unlike “pure” programmers, system administrators do not create new programs, but maintain individual computers and networks in an efficient state. Almost any organization now has at least two computers, which means that a specialist is needed who is able to set up a working network, install the necessary software, and also keep the organization's computers in working order. Large firms have separate staffing units for this, but small organizations prefer to use the services of a visiting system administrator. You can find advertisements for such vacancies in newspapers or on the Internet, and also try to negotiate with the directors of small firms in person.
Providing services to individuals
Like any complex device, a computer can always break down. Relatively new machines, as a rule, have a manufacturer's warranty, but owners of older computers, in the event of a breakdown, are forced to contact a specialized service. If you understand hardware, know how to handle a screwdriver and a soldering iron, then you may well make money on computer repairs, moonlighting in a service or starting your own business.
To understand computers, it is enough to have a technical mindset and study several textbooks and tutorials. This baggage is enough to start earning money, although it is worth developing your skills in the future.
Finally, many people who buy computers at home often need professional help. The range of services in demand is quite wide: from consultations on the configuration of a computer to installing software, optimizing the operation of the machine, setting up an Internet connection. Most often, such specialists work on a call: if you regularly post ads in your area, you can ultimately gain a base of regular customers who bring additional income for simple work.