Intuitive drag-and-drop operation makes using the software easy for even the casual user.

ENGADGET: JVC launches Procision slow-mo HD camcorder, refreshed Everio line at CES

Seibel says the enhancements made to the browser since the last beta will mostly be transparent to the casual user.

CNN: Communicator 4.5: Finally stable

Facebook Home is not geared toward the casual user.

FORBES: Google Play User Reviews Have Low Marks For Facebook Home

In the interest of disclosure, I am nothing more than a casual user of the eBay sites and services and have no extreme affinity or hatred for the company (no position in the stock either).

FORBES: Still Buying What eBay Is Selling

But I found it inconsistent, unfriendly to even the most casual business user.

FORBES: Why I Might Drop the iPhone 5 for the Galaxy Note II, and you should too.

The unwanted program can be manually removed from the hard drive, but the casual computer user may find the procedure challenging.

CNN: 'Navidad' computer virus poses moderate risk

Microsoft can keep expanding their user base this way, and as for casual users, they can always play the newest games, but for the hardcore gamers they get to upgrade whenever they want for the best experience.

FORBES: Microsoft's Next Xbox Is For Your Living Room, But Isn't For Gamers

While the app holds obvious commercial appeal, the company's not counting out casual users, and hopes to see a future filled with user-created 3D content.

ENGADGET: Hands-on with Arqball Spin, the app that lets you create interactive 3D models

The shrinking user base is in part attributable to the rising popularity of casual social games, which are luring gamers away from traditional MMORPGs.

FORBES: Perfect World's Earnings Should Help Calm Fears On Chinese ADRs