![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/135/2db/187/1352db18765addaa6e0b2ac013d386d8.png)
Information Security
Data protection
535.28K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/6c5/db3/8c2/6c5db38c23972b6c0916e91e408edff8.png)
System administration
For user to be satisfied
125.74K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/02f/206/0b9/02f2060b99e6f4d9403eee0420d7d5b8.png)
Popular science
Popular science as is
136.44K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/db2/c8f/4a1/db2c8f4a1974bf334d01595732f339c1.png)
Programming
The art of creating computer programs
291.32K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/b2e/13f/8fc/b2e13f8fcaf2711677c87418b98e85fe.png)
Network technologies
From Ethernet to IPv6
128.78K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/0ac/9b4/828/0ac9b48281cd7ba7401b4a4f5d9cd8d8.png)
DIY
For those who is not all thumbs
423.85K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/dfb/d32/674/dfbd326740d2d30fba37f441919619f5.png)
IT-companies
Companies from industry # 1
441.46K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/cab/f82/067/cabf82067c7be08c90a5903f860c9abf.png)
IT career
Work, work and work (in IT)
51.64K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/dc9/dbe/e1d/dc9dbee1d24188b925e86946bafb15c7.png)
Open source
Open source software
109.96K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/a57/348/ade/a57348ade2b5c33e99e869aaee204c3f.png)
Legislation in IT
We follow how IT industry is being regulated
123.03K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/2c0/c6b/86a/2c0c6b86a9011cf811ce4b6820865115.png)
Personnel Management
How to properly hire, manage and part
33.9K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/b31/347/904/b31347904b72455522b1f645ea28ef1a.png)
Game development
Game development
123.41K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/1c6/724/437/1c6724437b83f3d71abd08e5c2877a7a.png)
Python
Interpreted high-level programming language for general-purpose programming
160.4K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/612/aab/212/612aab212721194fe115ed84dea966cc.png)
Health
"It's okay" or how to live longer
13.1K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/d65/2d0/42e/d652d042e03426c4e8c7d15e2254cb4b.png)
Configuring Linux
Eternal euphoria
519.25K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/882/37a/b33/88237ab33b6f8acc090d443651c4f2f9.png)
Machine learning
The basis of artificial intelligence
45.3K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/c08/ac8/abd/c08ac8abdf8edc624ac48e8411851998.png)
Software
Everything about software
178.13K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/04e/1a1/ccd/04e1a1ccda37543704ede864665b2ccd.png)
Reading room
Useful literature on IT-topics
10.76K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/e55/4e4/f79/e554e4f790ec7617ecde4b3930acf44a.png)
Physics
A science about the world around us
61.97K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/2a2/ac7/3dd/2a2ac73dd5cddc6e05b47a3d502b4c0d.png)
Website development
Making the Web Better
551.91K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/064/e29/0f4/064e290f484ad3bf745ebe9163b9276a.png)
Old hardware
How it was when we were young
127.3K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/fd6/71f/dcf/fd671fdcf24393f28b04673ef09bcd62.png)
Finance in IT
About complex financial matters
91.41K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/57d/7b5/365/57d7b53659e90f8971cf34081078d1e4.png)
Computer hardware
Motherboard, videocard, memory and so on
455.23K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/d14/9ad/4f5/d149ad4f5d22a8b8775b070f3c92cf39.png)
Gadgets
Smartphones, tablets, laptops and so on
460.99K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/269/015/f78/269015f78421d3d8efa321a6f81574f1.png)
Manufacture and development of electronics
How to establish a process
5.89K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/bbe/ec1/498/bbeec149811969c7214c33d0a6911160.png)
History of IT
Interesting stories from the past
125.19K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/57d/092/3fc/57d0923fc4dbf24622761210161f5b47.jpg)
DevOps
Software Development Methodology
9.57K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/250/e19/5fa/250e195faa1708e4df5cb8664394a54f.png)
Games and game consoles
Rock Paper Scissors
106.15K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/659/9b8/08c/6599b808c4d9faf273204167b601b2a0.png)
Social networks and communities
Virtual life
168.42K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/61e/bf9/7b0/61ebf97b08494e41ad7b7cad1e0aacc7.png)
Algorithms
Everything about algorithms
267.52K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/2b3/99b/964/2b399b964d456f3ad1bfddc0346b60d4.png)
JavaScript
High-level, interpreted programming language. It is a language which is also characterized as dynamic, weakly typed, prototype-based and multi-paradigm
153.6K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/f07/ba2/b9d/f07ba2b9d63b419e332a4d5ddeec8a99.png)
Astronautics
Everything about the space and its capturing
102.89K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/4c9/821/d2a/4c9821d2ad5a9844eb6d0f8c77991772.png)
Java
General-purpose computer-programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible
149.87K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/d4c/97c/de3/d4c97cde31f59169b6159e7fc7020503.png)
High performance
Methods for obtaining systems high performance
156.26K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/32f/8aa/a67/32f8aaa676ea4746ee4cc3acaaac6d9a.png)
Abnormal programming
Perversions with code
104.93K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/9fa/5f9/72e/9fa5f972e61ea8e0b7d0258ddafd3fbe.png)
Lifehacks for geeks
The tricks of life to the note
17.12K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/94a/b35/1ad/94ab351adac61ac363e9de79c1382a67.png)
Project management
How to make it work
51.4K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/9f7/47d/2be/9f747d2beca9589226778700d866101d.png)
Mathematics
Mother of all sciences
87.46K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/geektimes/hub/79a/987/250/79a987250ade16638dfafcce24213f3d.png)
Astronomy
The natural science of the universe
32.47K
![](http://webcf.waybackmachine.org/web/20210203103328im_/https://habrastorage.org/getpro/habr/hub/9c2/6b1/54f/9c26b154fc3433778f64d493db6e5492.png)
System Programming
Low-level programming
99.7K