Computer Articles sorted by date

Energy efficiency in uninterruptible power supply design is now more important than ever. This is particularly true for datacentres where the need to protect ever more power-hungry equipment is as critical as the need to cut costs. This article touches on the different approaches taken to energy efficiency in the datacentre and the hidden vulnerabilities of some of the more radical ones.    Detail

If you want something mechanical or electrical to keep working it requires regular maintenance. Uninterruptible power supplies are no different. Users rely on them when mains power fails but often fail to maintain them. This article outlines the importance of regular UPS maintenance and highlights what should be included in a maintenance contract.    Detail

iPhones are capable of playing videos and music, just like many iPods. One of the features that some iPods have is the ability for you to transfer DVDs to them. So, is it possible to put DVDs on your iPhone too? The answer is yes, you absolutely can!    Detail

Sizing an uninterruptible power supply is more than simple math. Done badly, it can be costly. On the one hand, oversizing can add to installation and running costs. On the other, under-sizing will lead to dangerous overload situations. So, how do you correctly size a UPS system? This article explains.    Detail

Anyone working in data centre or mainstream computing environments will be familiar with the terms ‘distributed’ and ‘centralized’ computing and the advantages and disadvantages of each for specific applications. For small to mid-sized computer rooms, the choice between centralised and distributed Uninterruptible Power Supplies (UPS) holds similar considerations.    Detail

Successful uninterruptible power supply installation can mean the difference between maintaining and losing business continuity. As so often in business, choosing the right UPS location takes good planning, a clear understanding of power protection objectives, the best possible uninterruptible power supply for the budget, and professional installation.    Detail

This article gives a step-by-step guide to running a network time server using Windows XP and NTP.    Detail

This article gives a step-by-step guide in configuring LINUX to act as an authoritative time server using NTP (Network Time Protocol).    Detail

This article explains how to set Windows XP to use Universal Coordinated Time (UTC) over the Internet and how to use NTP to connect to an absolute timing reference    Detail

Learn the fundamentals of building and managing access-control lists on a Cisco ASA or PIX firewall in this soundtraining.net "How-to" guide.    Detail