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Can I start programming in 5 minutes? Is quite real
The topic of programming lessons has been raised more than once, but many of these materials are either too complicated for beginners or require additional preparation and installation of various (often expensive and time-consuming) software packages. Is it possible to do without all this? Can!
We will try to get by with a minimum of additional information, so that in 5 minutes our first program will work. So let’s get started. Introduction According to the encyclopedia, a computer program is a sequence of instructions for a computer. A programming language is a formalized way of writing computer programs. It is important to note that the computer itself does not need a “human” language; it copes well with machine codes in binary format. These codes are simple instructions like: “Take the number at address 100, add the number at address 101, put the result in cell 102”. Continue reading
Work at the computer. How to avoid occupational diseases?
They came without an invitation and said: “Hello, allow me to introduce myself: these are we, three new diseases of the new century, -“ text neck ”,“ smartphone finger ”and“ dry eye ”. However, we, educated people who are knowledgeable in the rules of etiquette, do not want to answer them “very nice” and “welcome”.
Even judging only by the names of these diseases (in the foreign press, respectively, “text neck”, “smartphone finger”, “dry eye”), there is a feeling that we are talking about some sort of gang warfare. In fact, it is: these near-computer diseases are fighting against us, the near-computer population, fighting on all fronts. Not so long ago, electronic gadgets have come into our lives, and already more than 80% of white-collar workers in all developed countries suffer from symptoms of these diseases. In 2011, scientists from the British Physiotherapy Continue reading
What is the Morris Worm?
In early November 1988, the first ever network attack on computers connected to the global network took place. Her culprit was Cornell University graduate student Robert Tappan Morris.
The program, written by Robert Morris, had a small dictionary of the most well-known passwords, which provided it with penetration of 10 percent of computers connected to ARPANET. Once on a foreign computer, the program first checked whether the same program was already installed here. If the computer was still “clean”, the program masked its presence in the system, read a file that contained information about users of the “occupied” system, forwarded this information to the author, and then Continue reading
