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As part of import substitution, Moscow buys Microsoft software for 90 million rubles


Today I read on Cnews funny note — the Russian developers of the software have complained of the purchase of Information Technologies Department of Moscow of Microsoft solutions already on 90 million rubles. I like to admin this event is interesting not so much the amount of the contract or a complaint, how much of its mechanics — how do they do it? We, ordinary people in the regions, the arms twisted — and in Moscow, please — take Microsoft, and it's kind of...

Read more >>> Date release: 2020-04-10

Engineering Special Forces: Heat and Cold


Use products nearest store for making technical wash mixture.The Bank, audit of system of cooling of the data center. You have a valid service operation of the Bank, they have a service contract with the organization OOO "Jolly jellyfish". People work, get money. But fail under system regularly, stopping at high pressure when the outdoor temperature increases. Come to the place in the far East to understand. Gathered freon, weighed, compared the calculation and the actual dressing. It's simple:...

Read more >>> Date release: 2020-04-02

Homemade Lidar: OpenTOFLidar


In this article I want to talk about your project pulsed (TOF) Open Source lidar — about how I was doing, and what results have been achieved. Read more...

Read more >>> Date release: 2020-03-11

Nonlinear differential equations, discreteness of space-time and epsilon product


All the content of this article is the result of solving the problem of level first year University course in mathematical analysis. Here we introduce a new work for lattice functions (we will call it Epsilon-multiplication), which gives us the opportunity to see an interesting connection between the integral-differential equations (including nonlinear) and recurrence relations. This allows an unusual angle to look at some methods of their solution. But, what I find particularly interesting is...

Read more >>> Date release: 2020-03-07

Linux NVMe setup


Good time of day.Wanted to draw the community's attention on the characteristic feature of Linux when working with multiple NVMe SSD in the same system. Especially important will be for those who like to do from NVMe software RAID arrays.We hope that the information presented below will help protect your data and prevent you from annoying bugs. Read more...

Read more >>> Date release: 2020-03-07

[Translation] Zip files: history, explanation and implementation


I've always wondered how the compressed data, including Zip files. One day I decided to satisfy your curiosity: learn how compression works and write your own Zip-program. The implementation turned into an exciting exercise in programming. Get great pleasure from creating a well-functioning machine that takes data, shifts their bits in more effective performance, and then puts it back together. I hope you will also be interested to read about it.The article explains in great detail how to work...

Read more >>> Date release: 2020-03-03