This week’s Computer Weekly, we talk exclusively to Tesco CIO Mike McNamara about why the UK's biggest retailer is spending £150m on its online business. And, with the London 2012 Olympics only weeks away; we look at how IT testing is progressing. 

Windows 2003 Server, its workstation cousin Windows XP, and its predecessor, Windows 2000, all bring substantial advances in both reliability and security compared to Windows NT 4.0. This briefing lays out the main security features of the Windows 2003 operating system family, and put them together into a "big picture" context. 

In this week’s Computer Weekly, we look at the IT challenges facing retailers, as consumers turn increasingly to web and mobile shopping channels. Oracle president Mark Hurd talks about how the supplier intends to simplify IT infrastructures. And new government CIO Andy Nelson discusses how he plans to transform Whitehall IT. Read the issue now. 

In this video, learn how to combat against regulatory, staffing and audit pressures that security management shortcomings bring to the table. 

Enterprise organizations need to take a serious look at end-to-end application performance management. 

This paper examines the key communications challenges faced by organizations today and how web collaboration is delivering the right tools to help organizations meet their growth objectives. 

As data center infrastructures become increasingly complex, so do the IT processes--such as incident management and server provisioning--that keep infrastructure up and running. 

Find out how 3,637 marketers responded to tough questions about their open, click and conversion rates. Also, find out which tests work best, what's not working, list growth strategies and how email budgets are changing for 2007. Invite your entire team to attend – attendance for this Webcast is free! 

This report, the second in a series of studies looking at the impact emerging online applications have on B2B technology marketing, finds that blogs and Real Simple Syndication (RSS) are catching on more quickly than previously thought. 

Find out what 1,900 B2B marketers in software, hardware and technology services industries revealed about what works for lead generation. Invite your entire team to view this free Webcast and learn about business-to-business email and search engine marketing strategies. 

Modularity is an established technique for organizing and simplifying a complex system. In data centers, modular design has already taken root in new fault-tolerant architectures for servers and storage systems. The mission of this paper is to illustrate how modularity delivers a profound reliability benefit: fault tolerance