These all-in-one desktops have the computer built right into the screen itself. So what you lose in portability you gain in minimalism: These machines take up a much smaller footprint than the typical desktop. They offer the latest high-speed processors, built-in HD webcams for videoconferencing, and a few extra business perks.--John Brandon
The 10-point touchscreen on this Windows 8 all-in-one is the killer feature. With the increased sensitivity, you can touch points on a map, flip through a business presentation, or drag a detailed chart on the screen. This system has an Intel Core i5 processor running at 2.9GHz, 4GB of RAM, and a 500GB hard drive. A spill-resistant keyboard is included.
Also available in a larger 27-inch size, this sleek Windows 8 desktop has a powerful gesture-control feature. The webcam reads hand flicks from up to three feet away. You can move to the next slide in a presentation, flip through a Web site, and control the volume. Samsung includes a unique Quick Starter app for Windows 8 for accessing apps on the desktop. The computer runs on an Intel Core i5 at 2.9 GHz with 6GB of RAM and a 1TB hard drive.
For business users, this super-slim all-in-one has a handy security feature: The Windows 8 desktop supports Near Field Communication (NFC) so you can tap a smartphone like the Google Nexus 4 on the desktop to login securely or transfer data over Bluetooth. It has an Intel Core i5 2.9GHz processor, 6GB of RAM, and a 1TB drive.
The new iMac has one exceptional feature for business users: The Fusion Drive, which adds $250 to the price, uses both a 128GB flash drive and a 1TB hard disk drive. As you work, the Fusion automatically places commonly used files and apps on the faster flash drive, which keeps the computer running lighting fast. This configuration for $2,149 also uses an Intel Core i7 3.1GHz processor and 16GB of RAM.
One of the most unique all-in-one systems of the bunch, the VAIO Tap, which runs on Windows 8, looks like a huge 20-inch tablet and has a stand that flips out for desk use. You can close the stand and bring the 11-pound Tap to a meeting. (As a tablet, there's enough battery power to keep running for about 90 minutes.) The Tap runs on an Intel Core i3 1.8GHz processor (there are also i5 and i7 versions) and has 4GB of RAM and a 500GB drive.
Like the Lenovo Edge, this Windows 8 all-in-one lets you control your computer by touch. But for businesses concerned about security, there's a unique one-touch feature called Dell Data Protection. You can enable a template that secures all data with encryption, meeting federal FIPS guidelines for security. The Touch version includes an Intel Core i3 3.3GHz processor, 4GB of RAM, and a 250GB drive.