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Friday Forum for Computer Help

This Group meets at 9:30am - 2nd Friday each month at Sydney Mechanics' School of Arts, 280 Pitt Street. Visitors are welcome

Why is 127.0.0.1 used for a computer's localhost address?

No place like 127.0.0.1

The Internet Protocol address 127.0.0.1 is a special-purpose IPv4 address and is called the localhost or loopback address. All computers use this address as their own, but it doesn't let computers communicate with other devices as a real IP address does.

The loopback address is only used by the computer you're on, and only for special circumstances—unlike a regular IP address that transfers files to and from other networked devices. For example, a web server running on a computer can point to 127.0.0.1 so that the pages are run locally and can be tested before being deployed. For more information and to discover why that "Home" number may have been chosen, see this early discussion.

Logo of Video downloaderWhat is 4K Video Downloader?

Discover the free 4K Video Downloader and enjoy your videos anywhere, any time, and of course even when you are offline. Downloading is simple and straightforward: just copy the address bar link from your browser and click 'Paste Link' in the application.

The 4K Video Downloader is multi-platform software for downloading video and audio from popular websites like YouTube, Vimeo, Dailymotion or Facebook. It supports the following output formats: MP4, MKV, OGG Theora, MP3, M4A.

4K is the new resolution standard designed for digital cinema and computer graphics. It has following advantages: higher image definition quality, more detailed picture, better fast-action and larger projection surface visibility.
YouTube enabled 4K video support in the middle of 2010. Today, it's the highest resolution format available for consumers and it has great potential! Check out the tutorials and download 4K Video Downloader here.

New Privacy Controls for Maps, Assistant, Youtube

Logo of Google MapsThe first change is to Google Maps, which is now getting an "Incognito mode." This works similar to the Incognito mode found in the Google Chrome browser.

Once activated, Incognito mode means details of where users search for will no longer be saved to their account and won't affect personalized experience. However, while in Incognito mode, users won't see any personalized information such as automatic updates on their commute.
Source and full story here:

Vivaldi makes web browsing more efficient

Vivaldi for Windows logoVivaldi launched in 2015 to make up for the loss of features in other browsers. From the very beginning we’ve focused on building our own, highly customizable UI.

We often get asked about the relationship between Vivaldi and Google Chrome. The truth is, while we rely on the Chromium engine (maintained by the Chromium project set up by Google), this is where similarities end. Let’s take a look. Below the UI of a browser – the part most people see and interact with – there’s a rendering engine responsible for displaying the requested content in the browser window, as well as a browser engine responsible for bringing together the rendering engine and the application’s UI.

Different browsers use different engines and when it came to picking ours, we found that the Chromium engine code was secure and the most widely used – things that were important to us. Other pieces of code were either unavailable or undergoing significant re-writes. Developing a new engine from scratch would not have allowed us to focus on what mattered to us the most – it would have taken far too long to do and required significant resources. There is a reason why no one has built a new engine from scratch in 20 years.
Download Vivaldi for Windows now.

Tips to improve PC performance in Windows 10

Unhappy faceDoes a slow PC have you down? If so, try some of the things below to help make your Windows 10 PC run better. The tips are listed in order, so start with the first one, see if that fixes the problem, and then continue to the next one if it doesn’t.

Begin here for more details on how to complete the following checks

  1. Make sure you have the latest updates for Windows and device drivers
  2. Restart your PC and open only the apps you need
  3. Check your memory and memory usage
  4. Check for low disk space and make some room if necessary
  5. Restore your PC from a system restore point
  6. Disable unnecessary startup programs
  7. Check for and remove viruses and malware
  8. Check for corrupted Windows system files
  9. Adjust the appearance and performance of Windows
  10. Adjust or turn off OneDrive sync
  11. Reset your PC