Author: Hyman Tageldin

Using VLANs and QoS to Improve VoIP Performance

When designing a network to support voice over IP (VoIP) services alongside traditional data services (e.g. from PCs, servers, and the like), it is important to ensure that voice and data traffic are segregated as much as is possible. This…

Updating the Root Certificate Store in Windows Vista and Later

All Windows-based operating systems are preloaded with a root certificate store, the purpose of which is to allow Windows machines to trust reputable, public certificate authorities by default and without user/administrator action. Because certificates expire, are revoked, and new vendors…

Ethernet Roadmap

The following post is from the Ethernet Alliance. The 2015 Ethernet Roadmap shows a roadmap for physical links through 2020 and looks into the future terabit speeds as well.  The roadmap is broken into three parts:  A two-sided, illustrated map…

Free Upgrade to Windows 10

The following is an excerpt from this article. Windows 10 will be free for existing Windows users running versions of the OS, going back to Windows 7. That includes Windows 7, 8, 8.1 and Windows Phone. Microsoft specified it would…

Skype for Business to Replace Lync

The following is an excerpt from this article. Microsoft on Tuesday announced that its Skype brand will soon replace Lync, the software giant’s video and Web conferencing platform for businesses. The new offering, dubbed Skype for Business, will arrive in…

Cycles, Cells and Platters: An Empirical Analysis of Hardware Failures on a Million Consumer PCs

The following post is from Microsoft Research. We present the first large-scale analysis of hardware failure rates on a million consumer PCs. We find that many failures are neither transient nor independent. Instead, a large portion of hardware induced failures…