In this guide, you'll learn the basics of how to use Apple's Keynote presentation software. Learn all about Keynote whether you're a complete beginner or trying to improve on your existing skills.

Need to learn all about how to use PowerPoint? Whether you're a complete beginner or just needing to learn about a few more powerful tools inside PowerPoint, this tutorial series is for you. 

For those who are new to computers, or those who have previously been using PCs and are new to Mac, the graphical user interface–or GUI–in OS X may be somewhat unfamiliar.  

The spreadsheet was the original killer app that helped the PC gain a place on every desk, and it’s still one of the more powerful apps on your computer today. Whether you’re using Excel on your Mac or PC, Apple Numbers on your Mac or iPad, or Google Sheets or the Excel Web App in your browser, you can crunch numbers and discover more about your data with a few simple commands in a spreadsheet. Spreadsheets are deceptively complicated, and yet, once you figure them out, they’re simpler than any other number-crunching tool.

There's no reason to have cabinets full of paper cluttering your office, when all of that data could be saved on one hard drive and be infinitely more useful. Most of us have already started going paperless in some ways, since so much of our communications and documents are digital-first already, but you've still got to do something with all the paper documents you already have.

Launched in October 2013, Mavericks is the latest iteration of OS X that ditches the big cat names (in favour of places in California) but adds functionality and features to the operating system. Maps, AirPlay Display, an evolved Finder, Tags and a number of changes under the bonnet--such as Timer Coalescing, App Nap, Compressed Memory and Safari Power Saver--see a major evolution of the the operating system that runs on your Mac.