Intel Corporation showed at the CES 2020 exhibition, which is currently taking place in Las Vegas (Nevada, USA), a prototype of an unusual computer codenamed Horseshoe Bend. The demonstrated device is a large tablet equipped with a 17-inch flexible display. The gadget is well suited for watching videos, working with applications in full-screen mode, etc. If necessary, the device can be bent in half, turning it into […]
Hisense company presented at the CES 2020 electronics exhibition, which is currently taking place in Las Vegas (Nevada, USA), a unique smartphone with an e-paper display. Cellular devices with E Ink screens have been around for quite some time. Let us remind you that panels on electronic paper consume energy only when the image is redrawn. The picture is perfectly readable in bright sunlight. Until now […]
Artem Denisov ( bo0rsh201, Badoo) Badoo is the world's largest dating site. We currently have about 330 million registered users worldwide. But what is much more important in the context of our conversation today is that we store about 3 petabytes of user photos. Every day our users upload about 3,5 million […]
AMD at CES 2020 not only introduced the new Ryzen 4000 mobile processors, the 64-core Ryzen Threadripper 3990X consumer CPU, the Radeon RX 5600 XT graphics card, and SmartShift dynamic CPU and GPU clock control technology. The company also revealed some of its plans in a series of responses to the media. For example, Lisa Su confirmed the preparation of a “big Navi”, which should be […]
Our users write messages to each other without feeling tired. That's quite a lot. If you set out to read all the messages of all users, it would take more than 150 thousand years. Provided that you are a fairly advanced reader and spend no more than a second on each message. With this volume of data, it is critical that the storage and access logic […]
We successfully designed the structure of our PostgreSQL database for storing correspondence, a year has passed, users are actively filling it, now there are already millions of records in it, and ... everything started to slow down. Part 1: designing the database frame Part 2: partitioning the "profit" The fact is that with the growth of the table volume, the "depth" of the indexes also grows - albeit logarithmically. But over time it […]
How you can translate business requirements into specific data structures using the example of designing a messenger database from scratch. Part 1: designing the framework of the database Part 2: partitioning it “live” Our database will not be as large-scale and distributed as that of VKontakte or Badoo, but “so it will be”, but it will be good - functional, fast and fit on one PostgreSQL server - so that [ …]
Other articles in the cycle: History of the relay The method of "rapid transmission of information", or the birth of the relay Long-ranger Galvanism Entrepreneurs And finally, the relay The talking telegraph Simply connect The forgotten generation of relay computers The electronic era The history of electronic computers Prologue ENIAC Colossus The electronic revolution The history of the transistor darkness From the crucible of war Repeated reinvention The history of the Internet The backbone […]
One of the most mysterious and not fully understood “phenomena” is the human brain. Many questions revolve around this complex organ: why do we dream, how do emotions influence decision-making, which nerve cells are responsible for the perception of light and sound, why do some people like sprats while others adore olives? All these questions concern the brain, for it is [...]
Other articles in the cycle: History of the relay The method of "rapid transmission of information", or the birth of the relay Long-ranger Galvanism Entrepreneurs And finally, the relay The talking telegraph Simply connect The forgotten generation of relay computers The electronic era The history of electronic computers Prologue ENIAC Colossus The electronic revolution The history of the transistor darkness From the crucible of war Repeated reinvention The history of the Internet The backbone […]
While discussing Linux kernel schedulers, user Jonathan Danti complained that changes to the kernel broke an important third-party module, ZFS. Here's what Torvalds wrote in response: Keep in mind that "we don't break users" applies to userspace programs and the kernel I maintain. If you add a third party module like ZFS, then you […]
Source Science fiction literature has always been fertile ground for cinema. Moreover, the adaptation of science fiction began almost with the advent of cinema. Already the first science fiction film, “A Trip to the Moon,” released in 1902, became a parody of stories from the novels of Jules Verne and H. G. Wells. Currently, almost all highly rated sci-fi series are created based on literary […]
