37. What is PC L1, L2, L3 cache, how L1, L2, L3 cache works? 38. What is northbridge, southbridge, how they work? 39. What is computer bus, how pc bus works? 40. What is ipsec, how ipsec works? 41. What is svchost.exe, how svchost.exe works? 42. Difference: 32-bit, 64-bit processor and how to verify? 2. How to install, configure network card? 3. How to block internet connection? 9. What is hub, switch, or router? 10. What is Ethernet and how it works? 11. How to map a network drive? 12. What is P2P networking? 13. What is bluetooth and how it works? 14. What is DHCP and how it works? 15. What is DNS and how it works? 16. What is MAC address? 17. What is Infrared communication? 18. How to hide your computer from network user? 19. How to use remote desktop? 20. How to use remote assistance? 23. What is bandwidth?
Who is the target audience for this guide? We have in mind that you are a self-taught software engineer, bootcamp grad or precocious high school student, or a college student looking to supplement your formal education with some self-study. The question of when to embark upon this journey is an entirely personal one, but most people tend to benefit from having some professional experience before diving too deep into CS theory. For instance, we notice that students love learning about database systems if they have already worked with databases professionally, or about computer networking if they’ve worked on a web project or two. We’ve tried to limit our list to computer science topics that we feel every practicing software engineer should know, irrespective of specialty or industry, but with a focus on systems. In our experience, these will be the highest ROI topics for the overwhelming majority of self-taught engineers and bootcamp grads, and provide a solid foundation for further study.
In the UK, Prime had a very active OAS User Group whose suggestions were acted upon in new product development. UK Pioneers of the system included the London Docklands Development Corporation and Oxford Polytechnic, now Oxford Brookes University. Both the Pick environment and Prime Information were based on the Generalized Information Retrieval Language System (GIRLS), developed by Richard Pick for the American Department of Defense. Devcom, a Microdata reseller, wrote a Pick-style database system called INFORMATION in FORTRAN and assembler in 1979 to run on Prime Computer 50-series systems. INFO/BASIC, a variant of Dartmouth BASIC, was used for database applications. It was then sold to Prime Computer and renamed Prime INFORMATION. Unlike the Pick operating system, a complete operating system, Prime Information was not an operating system, but a 4GL system that ran from the Prime PRIMOS operating system. Prime Information was a re-implementation which deliberately left out some features and added others.
This was simply my experience trying to rely on KDE Connect for sending and receiving SMS messages on my computer for several months. In July, I switched desktop environments on Manjaro from KDE to XFCE - which I discussed tangentially in an earlier article. While I could still have installed KDE Connect, installing it would require installing a whole suite of applications that I do not need with my current desktop environment. In light of the fact that I did not find KDE Connect entirely reliable, I decided to look for another solution. In 2020, I convinced my friends who I had communicated with on Slack to move over to Matrix, a federated instant messaging protocol. I use Element as my Matrix app on desktop and Fluffy Chat on mobile. Both clients work well for me. I hoped that I could convince my friends to use Matrix from their phones instead of SMS - at least when I was on my computer.
There is a third category that people might be less familiar with, and that is the centralized workstation. If you have a team of people, but not all need access to high performance computer power all the time, this can be a very cost-effective option. Say you have a team of 30 people, of which 10 need constant access to workstation performance, you would give them their own workstation. For the other 20, who need it occasionally, you can install a centralized workstation in your office. These are usually stored in IT rooms, rather than sitting on the end user’s desk. This is a rack-mounted desktop workstation that can take care of intensive workflows for any user, anywhere. Centralized workstations are also known as virtual workstations, as team members can connect to the centralized workstation with their standard issue desktop, laptop or notebook using the appropriate software, whenever they need to access high-performance computer power. The user can then access workstation power performance to complete compute-intensive tasks from anywhere. The centralized or virtual workstation takes care of the heavy lifting, allowing the user to get the job done on almost any device from anywhere. Usually, only the encrypted pixels are sent over the network, so company data remains highly secure at the source with the racked centralized workstations. During the pandemic as a result of increased virtual collaboration, users who relied on high performance computing via a desktop workstation needed a solution that provided the same capabilities and experience they were used to having in the office, at home. In the future, this is likely to be a continuing trend as workforces spend more time working remotely. Fernando Cassia is a freelance Tech Writer living in Buenos Aires, Argentina. He has also written for Mike Magee's The Inquirer, Theo Valich’s BSN, TechEye, and other online publications. When he's not chasing Phishers, he's procrastinating on Twitter. This post was w ri tten with GSA Content Gener ator Demov er si on.
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