![]() With MainConcept, I tested P/Q values 1 (lowest quality, fastest encode), 15 (the default), 22, 27, and 30 (highest quality/slowest encode) while keeping all other parameters identical. After running the tests, I compared quality using the Moscow State University Video Quality Measurement Tool’s Video Quality Metric (VQM) rating to assess output quality, and verifying the findings with subjective comparisons. ![]() With all encodes, I verified that the encoder met the target rate, which proved much more of an issue with x.265 than with TotalCode. I produced the x265 files via command line using version 1.4.0 of the x265 video encoder. I encoded the MainConcept files using version 3.2.0 (build 17871) of MainConcept’s TotalCode Studio. I tested each codec using five different standardized presets that I’ll identify below. I tested at 1080p resolution encoding to the Main (rather than Main10) HEVC profile at 2Mbps per second, encoding to 1-pass CBR with a key frame interval of 60 frames. The distinct content obviously stressed the codecs in different ways, while the short duration enabled me to run hundreds of discrete encodes. How I Testedįor this series of tests, I used seven 5-second files with varying content, ranging from a low-motion, low-detail talking head video to a high-detail, high-motion shot of a Food City parking lot with lots of trees and bush, shot from a rising lift on a windy day. Before jumping into the results, let’s discuss how and what I tested. ![]() ![]() When using either codec, the most important issue is determining which preset is right for your encoding operation, so I’ll address this topic first. With the x265 codec, the Medium preset is the default with MainConcept, 15 is the default. Rather than using a preset, MainConcept uses a P/Q selection, which ranges from 1 (Fastest Encode/Poorest Quality) to 30 (Slowest Encode/Best Quality). Both encoders provide access to x265 tuning alternatives, which I did not explore in this article. Sorenson Squeeze, which also uses the x265 codec, lets you choose a preset and access all other encoding parameters within the actual encoding interface. With Vantage, you can choose a preset and customize your HEVC encode even further by inserting command-line arguments in the field below the preset. Choosing an x265 preset in Telestream Vantage This is shown in Figure 2, the preset selection screen from Telestream Vantage, which uses the x265 codec.įig 2. To simplify operation for their users, both MainConcept and the developers of x265 (led by Multicore and sponsored by Telestream and Sorenson) create presets that represent relevant trade-offs between encoding time and output quality. Most advanced codecs include dozens of configuration options that can lead to thousands, if not millions, of unique configuration permutations. None of the rules regarding these items have changed in theory, so you can apply them just as you always have, though obviously you’ll be using a different data rate than you would for H.264. Where H.264 has greater precision than MPEG-2, especially in the Transform and Motion Estimation Blocks, HEVC has greater precision than H.264, though some of this is “under the hood” and not configurable with either codec.īecause of these fundamental similarities, much of your decision making when encoding with HEVC will relate to familiar configuration items: I- and B-frame interval, data rate selection, and bitrate control technique (VBR, CBR). This is shown in Figure 1, which is from the Elemental Technologies White Paper “HEVC Demystified: A Primer on the H.265 Video Codec.” As you can see, the general concepts are similar, as are the frame types and various other elements. So addressing these two HEVC codecs delivers the best bang for our editorial buck.įortunately, H.264 and HEVC are very similar from an encoding perspective, just as MPEG-2 and H.264 are. Why these codecs? Because while there are some encoding vendors who will create and deploy their own HEVC codecs, most encoding vendors will incorporate one of these codecs, just like most encoding tools have incorporated the MainConcept H.264 codec and/or x264. No worries, we’re here to help with this guide to encoding to HEVC using the MainConcept and x265 HEVC codecs. If you haven’t already, sometime in 2015 you’ll have to encode your files to HEVC format for the first time.
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With statistics showing a huge decline in viewership for LCS and LEC, it's not farfeteched to conclude that league is on the decline (in the west at least) and Riot is trying to stop this decline. The direction Riot is going in is pretty clear: give players a false sense of improvement (at the cost of competitive integrity) -> players get more dopamine playing this game -> they get addicted again -> more skin sales. Now they are adding ANOTHER reset next year. because not everyone has played enough games for the leaderboard to be indicative of skill). the LP gains are way too high by design so players who want to early season abuse will get addicted 2. More ranked resets means more opportunity for players to artificially inflate their LP by spamming games in early season (because 1. Main League of Legends Subreddit 27 Official /r/LeagueofLegends Discord 12 NSFW Rule 34 League of Legends Subreddit 32 List of ChampionMains Subreddits. This was the day the Worlds 2020 finals took place. However, it's clear that this is not the case, and it's exactly the same as the start of season reset. The video below shows that League of Legends passed Genshin Impact at the very last moment ( on October 31). ![]() At the start of the year, Riot claimed that this new mid-season reset would be a 'soft' reset. The next change was increasing ranked resets. The obvious reason for doing this is that 'average' players were starting to play ranked less and less, so Riot wanted to give them a false sense of improvement so that they can become addicted again. ![]() Because of this change, everyone below diamond moved up approximately one league. Reddit iOS Reddit Android Rereddit Best Communities Communities About Reddit Blog Careers Press. ![]() The first change they did was adding emerald rank. ![]() The news he's broken has been covered by outlets like the BBC, The Verge, Slate, Gizmodo, Engadget, TechCrunch, Digital Trends, ZDNet, The Next Web, and Techmeme. Beyond the column, he wrote about everything from Windows to tech travel tips. He founded PCWorld's "World Beyond Windows" column, which covered the latest developments in open-source operating systems like Linux and Chrome OS. He also wrote the USA's most-saved article of 2021, according to Pocket.Ĭhris was a PCWorld columnist for two years. Beyond the web, his work has appeared in the print edition of The New York Times (September 9, 2019) and in PCWorld's print magazines, specifically in the August 2013 and July 2013 editions, where his story was on the cover. ![]() With over a decade of writing experience in the field of technology, Chris has written for a variety of publications including The New York Times, Reader's Digest, IDG's PCWorld, Digital Trends, and MakeUseOf. Chris has personally written over 2,000 articles that have been read more than one billion times-and that's just here at How-To Geek. It's basically just the open source version of Chrome OS with some additional hardware support and the ability to run on almost any PC, rather than just Chromebooks.Ĭhris Hoffman is the former Editor-in-Chief of How-To Geek. However, Neverware also offers a home version of CloudReady for free. It's basically just Chromium OS plus some additional management features, and Neverware sells it to schools and businesses who want to run Chrome OS on their existing hardware. However, like Chrome, Chrome OS is based on an open source project named Chromium OS.Ī company named Neverware takes this open source code and creates a product called Neverware CloudReady. ![]() Google doesn't officially offer Chrome OS on anything but Chromebooks. Related: The Best Chromebooks You Can Buy, 2017 Edition But this method lets you take your Chrome OS installation wherever you go and use it on other computers, which is kind of neat. Needless to say, it must have a working USB port.If you just want to test Chrome OS, your best bet is running it in a virtual machine. This ensures that you won't run into any hardware-related issues. And finally, you need a PC to make the bootable USB and run the OS from your bootable USB.Unfortunately, this doesn't work on Linux as of this writing. So, go ahead and install it on your Chrome browser as an extension. For this guide, we'll go for the official method using Chromebook Recovery Utility.More on using Etcher in the unofficial method below. Here, you'll find the ISO or BIN file for the latest ChromeOS Flex release that you'd like to burn. If you're on a Linux machine, you can use Etcher to make a bootable USB drive.It is better to use a bigger USB if you plan on booting and using the OS from your USB. First, you should have a USB drive that you need to make bootable with a minimum of 8GB of storage.You'll need the following hardware and software for this purpose: Step 1: Prerequisites for Running ChromeOS Flex From a USB Drive So, here is how you can boot ChromeOS from a USB using ChromeOS Flex. This version of ChromeOS has increased support for tons of devices and lets you enjoy the official build on your PC. It is lightweight and intends to run smoothly on newer PCs as well as older devices with low specs.ĬhromeOS Flex eliminates technical complexities that might have hampered you from installing and using ChromeOS on your PC in the past. The Official Way: Running ChromeOS FlexĬhromeOS Flex is an OS by Google that is available publicly to be installed on any PC. Here's how you can try ChromeOS on any PC using a USB drive. ![]() Very quick and easy to get going for an an ad-hoc scan.Easy scan of a local network to see which IPs are up.However the solution doesn’t provide a lot of information about each device, limited to IP, ping time, hostname, ports, TTL, MAC address, filtered ports, NetBIOS. It is widely used by network administrators.Īngry IP is a good solution for teams that are looking for the fastest and easiest way to see which IPs are in use on a network. Paid license required for hardware and software vendors that wish to distribute Nmap with their solutionĪngry IP Scanner is an open-source network scanner designed to be fast and simple to use.Extensible through the Network Scanning Engine.Most flexible option of all tools due to configurability. ![]() Security researchers that want to write nmap scripts for custom projects.Ad-hoc network discovery and security auditing.NSE can even be used for vulnerability exploitation. It allows users to write simple scripts for network discovery, more sophisticated version detection, and vulnerability detection. The Nmap Scripting Engine (NSE) is one of Nmap’s most powerful and flexible features. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap). Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. It integrates with many other security auditing tools, such as Metasploit. The free and open source utility is most often used for network discovery and security auditing. Nmap has been around for 25 years and is the gold standard for ad-hoc network scanning. Use above 256 assets requires paid license (free trial available).Paid editions offers integrations with security and IT infrastructure as well as coverage of cloud & remote assets in addition to on-premise devices.Safe to use on fragile OT & IoT devices.Free Starter Edition for up to 256 assets (including commercial use).Easy to deploy and scalable for larger organizations. ![]()
Here are some tips for getting started, keeping in mind that I'm a scrub.ġ) The current route uses 100 Super Jumps, so practice that a lot. When I learned the route, I used the AGDQ 2013 run and this thread to take notes. I recently picked up SMRPG(like, I've done one run of it), and find it fun but tough. ![]() MIRC IRC client to be used with speedrunsliveĬolloquy Mac IRC client to be used with speedrunsliveĬommunity Speedrunning Websites Message the Moderators! ![]() r/SequenceBreak for glitching help and tutorials. Speedrunning Discord Channel, the largest general speedrunning discord channelĪll Speedruns Tracker for finding speedrun streams Looking for a specific community discord? Check this list. Need an explanation on anything speedrun? /u/GomezTheDragon has got you covered Check here for marathons that may not be on the sidebar or that are even further out! Resources for NewcomersĬheck out these tips from /u/AnAngryPanda and ZE3Z Here is a community-driven list of marathons kept up by Helix and nes. If you know of an upcoming marathon, please message the moderators! Meme Meta World Record Discussion Personal Best Video Production Event Glitch GDQ All Upcoming MarathonsĪn archive of marathon VOD threads can be found here. World Record Discussion Click below to filter out flair Public Mod Logs Submitting Rules Click below to search by flair ![]() Note: We heavily recommend immediately turning off comments on your runs, as otherwise comments are unmoderated. Speedrunning is a play-through of a video game performed with the intent of completing a goal as fast as possible. r/speedrun is a subreddit for the speedrunning community. Trimethius didn't stop there - he suggested that cryptographers encipher messages by using the first row for the first letter, the second row for the second letter, and so on down the tableau. A cryptographer using the 10th row, for example, would encipher the plaintext letter "A" as "J." To encipher a letter, the cryptographer picks a row and uses the top row as the plaintext guide. It looks like this:Īs you can see, each row is a Caesar Shift. Each row shifted the alphabet another spot so that the final row began with "Z" and ended in "Y." You could read the alphabet normally by looking across the first row or down the first column. ![]() The next row used a Caesar Shift to move the alphabet over one space. The first row contained the alphabet as it is normally written. The matrix was 26 rows long and 26 columns wide. One such scholar was Johannes Trimethius, who proposed laying out the alphabet in a matrix, or tableau. ![]() Kings and priests hired scholars to come up with new ways to send secret messages. The Caesar Shift was too easy to crack - given enough time and patience, almost anyone could uncover the plaintext behind the ciphered text. The Renaissance was not only a period of intense creativity and learning, but also of intrigue, politics, warfare and deception.Ĭryptographers began to search for new ways to encipher messages. It wasn't until the Renaissance that cryptography again became popular. During this time, scholarship declined and cryptography suffered the same fate. The recipient of the message uses the proper technique, called the key, to decipher the message, changing it from a cipher back into a plaintext.Īfter the fall of the Roman Empire, the Western world entered what we now call the Dark Ages. The cryptographer converts the plaintext into a cipher and sends it on. ![]() The readable message is called the plaintext. In the next section, we'll look at a few of these more advanced methods of encryption.ĭeciphering the LanguageTo encipher a message means to replace the letters in the text with the replacement alphabet. Notice that the cipher alphabet wraps around to "A" after reaching "Z." Using this cipher system, you could encipher the phrase "How Stuff Works" as "KRZ VWXII ZRUNV."īoth of these systems, the Polybius Square and the Caesar Shift, formed the basis of many future cipher systems. You can visualize this code by writing the two alphabets on top of one another with the corresponding plaintext and cipher matching up like this: Plaintext For example, if you were to shift the English alphabet down three places, the letter "D" would represent the letter "A," while the letter "E" would mean "B" and so forth. He created enciphered messages by shifting the order of the alphabet by a certain number of letters. Julius Caesar invented another early cipher - one that was very simple and yet confounded his enemies. The cryptographer could make it even more difficult by mixing up the order of the letters instead of writing them out alphabetically. To encipher the phrase "How Stuff Works," the cryptographer would write "233452 4344452121 5234422543." Because he replaces each letter with two numbers, it's difficult for someone unfamiliar with the code to determine what this message means. Some people prefer to differentiate the words, using cryptology to refer to the science and cryptography to refer to the practice of secret writing.Ī cryptographer would write the letter "B" as "12". You Say Cryptology, I Say CryptographyIn English, the words cryptology and cryptography are often interchangeable - both refer to the science of secret writing. Today, even the amazingly complex encryption schemes common in Internet transactions may have a limited useful lifetime - quantum computing might make solving such difficult equations a snap. Cryptanalysts have proven these people wrong by relying on everything from the scientific method to a lucky guess. Throughout the history of cryptography, people who created codes or ciphers were often convinced their systems were unbreakable. What cryptographers create, cryptanalysts attempt to unravel. Cryptographers might use codes, ciphers or a combination of both to keep messages safe from others. These people are cryptanalysts, also known as code breakers.īinary code is the basis for many modern ciphers.Ī person who communicates through secret writing is called a cryptographer. On the other side of the information equation are people who use a combination of logic and intuition to uncover secret information. ![]() Nations, corporations and individuals protect secret information with encryption, using a variety of methods ranging from substituting one letter for another to using a complex algorithm to encrypt a message. This closeup shows some writings from the notebook of Enigma codebreaker Alan Turing, who played a major part in breaking codes during the Second World War. ![]() Layers of abstraction that serve to hide internals are never a good thing. "If you try to hide the complexity of the system, you'll end up with a more complex system". Relying on complex tools to manage and build your system is going to hurt the end-users. This has earned it a reputation as a distribution for "advanced users" who are willing to use the command line. This is largely achieved by encouraging the use of succinctly commented, clean configuration files that are arranged for quick access and editing. Īrch Linux focuses on simplicity of design, meaning that the main focus involves creating an environment that is straightforward and relatively easy for the user to understand directly, rather than providing polished point-and-click style management tools - the package manager, for example, does not have an official graphical front-end. A ports/ ebuild-like system is also provided for automated source compilation, known as the Arch Build System. Packages target x86-64 microprocessors to assist performance on modern hardware. Design and principles Īrch is largely based on binary packages. In June 2012, package signing verification became official and is now enabled by default in the installation process. In November 2011, package signing became mandatory for new package builds, and as of the 21st of March 2012, every official package is signed. Pacman 4 allowed verification of the package database and packages, but it was disabled by default. ![]() Without package authentication checking, tampered-with or malicious repository mirrors could compromise the integrity of a system. Packages and metadata were not verified for authenticity by Pacman during the download-install process. Until Pacman version 4.0.0, Arch Linux's package manager lacked support for signed packages. In February 2022, the Arch Linux developers began offering debug packages. In late 2021, the Arch Linux developers released Pacman 6.0, which enabled parallel downloads. In April 2021, Arch Linux installation images began including a guided installation script by default. x86-64-v3 roughly correlates to Intel Haswell era of processors. In March 2021, Arch Linux developers were thinking of porting Arch Linux packages to x86_64-v3. This change also led to a new 2-year term period being added to the Project Leader position. On 24 February 2020, Aaron Griffin announced that due to his limited involvement with the project, he would, after a voting period, transfer control of the project to Levente Polyak. Since then, the community derivative Arch Linux 32 can be used for i686 hardware. The end of i686 support was announced in January 2017, with the February 2017 ISO being the last one including i686 and making the architecture unsupported in November 2017. It replaced the SysV-style init system, used since the distribution inception. The migration to systemd as its init system started in August 2012, and it became the default on new installations in October 2012. Vinet led Arch Linux until 1 October 2007, when he stepped down due to lack of time, transferring control of the project to Aaron Griffin. Originally only for 32-bit x86 CPUs, the first x86_64 installation ISO was released in April 2006. The name was chosen because Vinet liked the word's meaning of "the principal," as in "arch-enemy". Inspired by CRUX, another minimalist distribution, Judd Vinet started the Arch Linux project in March 2002. Īrch Linux has comprehensive documentation, consisting of a community-run wiki known as the ArchWiki. Īrch Linux uses a rolling release model, meaning there are no "major releases" of completely new versions of the system a regular system update is all that is needed to obtain the latest Arch software the installation images released every month by the Arch team are simply up-to-date snapshots of the main system components. Pacman, a package manager written specifically for Arch Linux, is used to install, remove and update software packages. The default installation is a minimal base system, configured by the user to only add what is purposely required. EndeavourOS, Manjaro, Garuda Linux, Artix Linux, AntergosĬommand-line interface ( Zsh as the default shell in Live CD or Live USB and Bash as the default shell after installation)įree software ( GNU GPL and other licenses) Īrch Linux ( / ɑːr tʃ/) is an independently developed, x86-64 general-purpose Linux distribution that strives to provide the latest stable versions of most software by following a rolling-release model. ![]() Surfshark speeds have also improved significantly recently, thanks to the introduction of the WireGuard protocol. Surfshark overcomes these hurdles with ease, allowing you to access the full range of films and TV shows from wherever you are. It’s common knowledge that the content library on Netflix and Prime Video varies between countries, while BBC iPlayer can’t officially be accessed from outside the UK. However, Surfshark is just as effective when it comes to a VPN’s other common purpose – unblocking geo-restricted content. The company’s strict no-logs policy was independently audited back in 2018, with another currently in-progress. AV-Test gave the VPN its official seal of approval in 2019, while its server infrastructure passed an independent audit in May 2021. Whichever device you install Surfshark on, its security credentials are clear. There are also browser extensions for Chrome and Firefox, while the service can even be added directly to your router. It’s also easy to share one account with everyone in the family, especially with Surfshark’s excellent device support.Īlongside dedicated apps for the iPhone, iPad, Mac and Apple TV, it works on Windows, Linux, PlayStation, Xbox and a wide range of smart TVs. You might think five or six is enough, but you’ll probably want to use Surfshark on every device you own. Surfshark is also one of the only major providers to offer unlimited devices and simultaneous connections. This works in tandem with CleanWeb, another Surfshark exclusive, which blocks ads and malware before they can appear on-screen and disrupt your browsing experience. Among them is the Cookie pop-up blockers, which does exactly what the name suggests – stopping those annoying cookie consent pop-ups every time you visit a new website that must comply with GDPR regulations. That works out at only £2.00/US$2.21 per month, extraordinarily good value when you consider everything you’re getting.Īlongside core functionality such as fast speeds and over 3200 servers, Surfshark has some genuinely useful features you won’t find elsewhere. A 24-month plan will currently cost you just £54.11/US$59.76, while the company is throwing in an extra three months at no extra cost. Surfshark is one of the very best VPNs around, and now is a great time to subscribe. It encrypts the connection between your device and a server on the internet, meaning you can choose when and where to provide your personal data. Investing in an effective and reliable VPN (virtual private network) before you start surfing the web is a great way to safeguard your experience. It’s especially perilous each time you enter personal data, with sophisticated cybercriminals desperate to steal the information and use it against you. Your internet activity is freely available to the likes of your internet service provider (ISP), the government or companies looking to target you with ads. ![]() For all the benefits of the online world, each one of us is taking a risk every time we turn to our devices. ![]() For instance, we may be able to provide you with news or updates relevant to the services you use. – Functionality cookies: These cookies allow our website to remember choices you make and provide enhanced features. ![]() For example, they allow us to count visits, identify traffic sources and see which parts of the site are most popular. – Performance cookies: These cookies enable us to monitor and improve the performance of our website. These cookies do not gather information about you that could be used for marketing or remembering where you have been on the internet. Without these cookies, the services available to you on our website cannot be provided. The technology behind the movement of the hands is also highly efficient, increasing both battery life and cost savings. It also automatically adjusts to summer/winter time changes. – Strictly necessary cookies: These cookies are essential to enable you to use the website effectively, such as when buying a product and / or service, and therefore cannot be turned off. A 30cm silver radio controlled wall clock from acctim that is tuned to the UKs atomic clock transmitter for precise accuracy. The clock hands will move and stop at 12:00 O’clock. Acctim Radio Controlled Wall Clock Instructions Radio Controlled Time Positioning Insert 1x AA battery at the back of the clock. Gently push down the minute hand to the 12:00 position, and follow the manufacturers instructions for securing it onto the clock face. Cookies can also be categorised as follows: This polaroid cr01 clock radio instruction manual will contain a general description of the ACCTIM RADIO CONTROLLED CLOCK USER MANUAL. Now, move the hour hand to the corresponding number of chimes (if it chimed three times, move it to the 3:00 position).The cookie can be read by the website that created it when you visit that website again. – Persistent cookies: a persistent cookie is stored as a file on your computer and it remains there when you close your web browser. – Session cookies: these are only stored on your computer during your web session and are automatically deleted when you close your browser – they usually store an anonymous session ID allowing you to browse a website without having to log in to each page but they do not collect any personal data from your computer or This helps us to develop and improve our website as well as products and / or services in response to what you might need or want. This enables us to understand how you use the site and track any patterns with regards how you are using our website. This radio-controlled clock features an automatic. We use cookies to track your use of our website. Learn how to set up and use the 76076 Thorncroft Regulator Clock with these easy-to-follow instructions. ![]() Use cases in UML are specifications of a sequence of events performed by a system, including its variants. Here are a few of the terms and symbols you will need to know before creating a sequence diagram. Common Sequence Diagram Symbols and Notation However, they can be created any time as a way to document existing systems.Īlthough sequence diagrams are very technical, they still provide a slightly higher-level view than code itself, so they can also be used to communicate system requirements to business executives and other non-technical stakeholders. Architects and developers use them to visualize how the system should behave and provide a helpful framework to use throughout the design process. Sequence diagrams are often created and used during a future system’s planning phase. They represent the details of a UML use case and the logic behind how objects and components interact with each other throughout a process. Sequence diagrams are most commonly used by technical teams. TRY GLIFFY What is a Sequence Diagram Used For? To add a sequence diagram directly to your Confluence documentation, add Gliffy to your Confluence space (it's free for 30 days!): Sequence diagrams are an important type of application architecture diagram to include in technical documentation because they outline system requirements, making them a valuable planning, decision-making, and onboarding resource. ![]() A sequence diagram, also sometimes called an event diagram, is a type of UML interaction diagram that illustrates the interactions between objects in a system in the order that they occur. |
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