Tech 21 Century

  • About
  • MY BOOKS
  • Home
  • Electronics
    • Apple Products
    • Gadgets
    • Mobile Phones
  • General Tech
    • Tech News
    • Smart Home Tech
    • Technology Certifications
    • VoIP
    • Web Hosting
  • Software
    • Windows
    • Mobile Apps
    • Software Product Reviews
    • Top Software Products
    • Video Conversion Software
  • Product Reviews
    • Computers and Peripherals
    • Home Routers and Modems
    • Mesh WiFi
    • Smart Home
    • VPN
  • Security
  • Computers
  • Gaming
  • Internet
  • Video Streaming

Archives for October 2010

AVS4YOU Review

If you are looking for an unbiased avs4you review which includes also real testimonials collected from all over the Internet, then you’ve come to the right place. In this article I will try my best to enlighten you on some subtle and finer nuances of this software suit of products and also give you the […]

Filed Under: Software Product Reviews

How To Convert PAL DVD To NTSC

PAL and NTSC are two different video formats used by different countries and regions of the world. NTSC is mainly used in the US, Japan and Canada, while PAL is used in Europe and Africa. Most of the times, a DVD video in one format cannot be played on a player on the other format. […]

Filed Under: Video Conversion Software

How to protect your wireless network

Since wireless networks do not require cables, they are convenient and easy to install, so homes with high-speed Internet access and wireless internal networks are growing rapidly (especially the new wifi mesh systems from vendors like Netgear, Linksys, and Eero as discussed here). Since the wireless network uses radio signals to transmit data, it may […]

Filed Under: Security

VoIP Technology Explained

VoIP protocols and technologies are divided into two major categories: Distributed and Centralized. The MGCP protocol is an example of Centralized VoIP protocol since it supports a centralized client / server architecture. On the other hand, H.323 and SIP protocols are categorized as Distributed since the voice distribution is based on inter-node ad hoc network. […]

Filed Under: VoIP

Search this Site

Copyright © 2026 | Contact | Privacy Policy & Disclaimers | Amazon Affiliate Disclaimer | Terms of Service