Do you have a business or are in charge of a business’ tech security? Get some tips from PC Authority’s experts.

It's an accepted fact that most Microsoft Office users only ever use about 20 percent of the suite's capabilities, often because they don't have the time to learn about all of the goodies it contains. Excel, with its complicated interface and feature overload is notorious for baffling even experienced users. However, many of its features are very useful in their own right.

Ever wondered what a particular acronym stands for? Find the answer in our comprehensive reference guide to computer industry acronyms. RTFM!

Your photos, music and data are just a virus or hard disk failure away from oblivion. Build a triple-layer defence using PC Authority's practical guide.

Data recovery is a mystical and varied art that shares much with archaeology. Depending on where you dig for data you may or may not find what you are looking for, and the longer you leave going after your lost data the greater the chance it will be worn away by age and reduced to fragments of its former self.

Our feature story covers best formats, backup options, and why you should reburn those photo CDs every two years.

Our unparalleled test of mobile broadband returns, comparing the three fastest services on offer in Australia. Read PC Authority's full comparative results drawn from exhaustive testing with real-world data.

Does dropping a hard disk from a third floor window or dunking it in a cup of tea mean curtains for your data? We visit Ontrack's data recovery labs to find out.

David Moss tackles Vista queries, as well as dealing with floating bars and annoying pop-up reminders.

Microsoft’s radical redesign promises ‘better results, faster’. Be fully prepared for this world-leading productivity software.

Once you’ve read this article, your hard drive could be melted in 30 seconds. “Digital Shredding” technology is now available.

Unless you keep your computer disconnected from a network and under secure lock and key there will always be the potential for prying eyes to access the data on your hard disk.

Time to push security up the IT agenda.

The buzzword in Excel 2003 is XML, best illustrated by the new mapping feature. This lets you map cells, columns and ranges to data held in XML data sources, so you can create Excel workbooks showing data from Web Services or other back-end data stores. The XML data is validated on input into Excel against a custom XML Schema under your control. Excel can also save your work in a native XML workbook format, which keeps any formatting but avoids the proprietary XLS file format. You may also, however, save data as a pure XML data file, leaving any formatting in the template. This XML data file can be put through BizTalk or imported into a back-end database.

Mobile broadband, also called wireless broadband, is full powered broadband Internet access that’s delivered by a mobile phone network (or a similar, long-range, radiation-based transmission system).

DDR2 is here, but there's more to it than meets the eye. Tim Dean takes a look at the good and bad of tomorrow's memory.

A rewritten front end makes Excel’s significant power far more accessible than before.

Create a family tree and record your family history

Just over four months on from our massive hard drive roundup (October 2002, page 74), and Serial ATA (SATA) hard disks have finally arrived. Phew.

The Internet, and to a degree wireless networking developments, are an attractive source of inspiration for NASA engineers. After all, with budget constraints on everyones minds, if lessons can be lea