Introduction into memory (Computer Science)
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An introduction into memory. By reading this slide, you'll learn: The four different types of memory Memory Management Garbage Collection Threads Stack Heap and a few more key things on the subject.
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Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
Introduction of Cybersecurity with OSS at Code Europe 2024
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Digital Banking in the Cloud: How Citizens Bank Unlocked Their Mainframe
Inconsistent user experience and siloed data, high costs, and changing customer expectations – Citizens Bank was experiencing these challenges while it was attempting to deliver a superior digital banking experience for its clients. Its core banking applications run on the mainframe and Citizens was using legacy utilities to get the critical mainframe data to feed customer-facing channels, like call centers, web, and mobile. Ultimately, this led to higher operating costs (MIPS), delayed response times, and longer time to market.
Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
Harnessing the Power of NLP and Knowledge Graphs for Opioid Research
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Senior Data Scientist - JohnSnowLabs
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"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
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Introduction into memory (Computer Science)
- 1. Introduction Into Memory Presented by developerX
- 3. 4 types of Memory Internal Memory Main Memory Online Mass Storage Offline Mass Storage
- 5. Internal Memory - Process Registers - Small Amounts of information to be consumed (do calculations on) - L0 - L4 Cache - Large Amounts of information to be broken down - Abstracted out in most languages
- 6. Main Memory R.A.M (Random Access Memory) The memory is Volatile Programs store information (variables, files, and etc) Ram is where the HEAP lives
- 7. Online Mass Storage No this is not Dropbox or Google Drive. This is referring to the Hard Drive inside your computer. The reason why it is online is because it is attached to your computer using a cable This is a non-volatile type of memory (means stores it even after power it removed)
- 8. Offline Bulk Storage This can mean things like Dropbox, Google Drive, and others. Databases also fall into the category of Offline Bulk Storage What defines offline bulk storage is that the computer must leave its own physical machine to access the information.
- 9. Memory Management Higher level languages like Javascript, Python, PHP, Ruby, and others have abstracted Memory management to be handled for you. C and C++ are lower level languages that need to be manually told to allocate memory when running their programs.
- 11. Garbage Collection A form of automatic memory management that tries to reclaim memory by objects that are no longer being used. Takes a significant amount of processing power Runs every 16ms Invented by John McCarthy around 1959.
- 12. Threads a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler Multiple threads can exist in a process which can share resources like memory. Often referred to as Multi-threaded. Javascript, Ruby, and Python don’t start off as multi-threaded, while other languages like Swift and Objective-C rely heavily on multi-thread for performance reasons.
- 14. Stacks Memory set aside as scratch space for a thread of execution. Function is called, a stack is created to allocate space for variables and some bookkeeping data. Once the function is finished executing the stack releases the memory to be used again by the next function. LIFO (last in first out)
- 15. Heap Memory set aside for dynamic allocation. There is no enforced pattern for Allocation or Deallocation. Makes it difficult to keep track of
- 16. Memory Diagrams
- 22. Using your Desk Create a quick Memory Diagram using the following code var movies = [ { id: 10, name: 'War Games', releaseYear: 1983, sequels: [] }, { id: 11, name: 'Tron', releaseYear: 1982, sequels: [ 'Tron: Legacy' ] } ]
- 24. Destructive Manipulates the original Object/Array we save space but have to manage state
- 25. Non - Destructive Doesn’t alter the original array in anyway but rather makes a new copy and returns that. we use up more space but can ignore state
- 26. Bonus Where are we using non-destructive methods in a REACT REDUX project? ***HINT**** Think of what pure functions are.
- 27. Thank you, Any Questions?