central processor
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
How to choose a laptop? Specifications, keyboard and battery
The operating system and screen size are not the only important parameters of the laptop. Its ability to process data is linked to the characteristics of components, autonomy largely depends on the capacity of the battery, and the usability is determined by the features of the keyboard and touchpad.
1. Specifications Specifications that describe the brand of the processor, the capacity of the hard drive, the amount of RAM and the type of video card, for many, are nothing more than a set of letters and numbers. But the capabilities and price of a laptop depend on them. More intense tasks, such as 3D games or editing HD video, require more expensive components. CPU. Budget laptops are usually equipped with AMD E Series or Intel Pentium processors. Such systems can easily cope with surfing the Web and communications, but serious computing or media tasks make them difficult. Continue reading
What is Rear Admiral Grace Hopper famous for?
Grace Hopper was an excellent mathematician and one of the first “encoders”, so-called programmers. In the mid-twentieth century, she, as an officer of the US Navy, like everyone who was “close” to computers, worked at Harvard in the department that was engaged in obtaining ballistic tables for artillery tasks.
So Grace Hopper is considered one of the first programmers in the world: she worked on the computer of Mark I, the former, in fact, a giant calculator. The giant Mark I was intended for the computational processes of obtaining artillery ballistic tables, in the already written algorithm, mathematical tasks (modules) of a general nature were provided. Hopper and her colleagues (by the way, there were much more female programmers involved in coding than men) coped with this – they first applied Continue reading
