Apple’s iMac remains a competitive choice for all in one desktop computers users. This is partly due to its stable operating system, the Mac OS X v10.6 Snow Leopard, and the handy iLife ‘09 software included.

The iMac is a 21.5 inch LED-backlit screen at a widescreen 16:9 aspect ratio and 1920×1080 HD resolution. Inside you will find a 3.06GHz Intel Core 2 Duo processor, 4GB of memory (supports up to 16GB), and a 500GB hard drive.

This 21.5 inch model also features improved graphics with the NVIDIA GeForce 9400M integrated graphics processor. It also has an 8x slot-loading SuperDrive with double-layer DVD support (DVD±R DL/DVD±RW) and a built-in iSight camera for video chatting. The MB950LL/A has four USB 2.0 ports, one FireWire 800 port, and one Mini DisplayPort video output. iMacs now come with a wireless keyboard and Apple’s new multi-touch Magic Mouse.

The Compaq CQ2009F Desktop PC comes in the form of a mini-tower. That is where it gets its alias the “mini-Q.” The aim of the PC is to be a small size, small power usage, and small cost alternative.

This type of computer has been termed a Nettop, which is a mini desktop that can do basic computing tasks and is primarily used for browsing the Internet to access online applications. It can be a green choice as a second computer for a home. As Nettops are cheap and power-saving, they can also be an asset for business users.

The Compaq CQ2009f computer is installed with Windows XP Home Edition, 1.60GHz Intel Atom Processor 230 with 512KB L2 Cache, 1GB PC2-4200 DDR2 SDRAM Memory, 160GB 7200RPM SATA Hard Drive, Intel Graphics Media Accelerator 950 with 64MB Dedicated Graphics Memory, SuperMulti DVD Burner,and 10/100 Base-T Network Interface.

Redesigned with a next-generation, touch-enabled 22-inch high-definition LCD screen, the HP TouchSmart IQ506 all-in-one desktop PC is designed to fit wherever life happens: in the kitchen, family room, or living room. With one touch you can check the weather, download your e-mail, or watch your favorite TV show. It’s also designed to maximize energy, with a power-saving Intel Core 2 Duo processor and advanced power management technology, as well as material efficiency–right down to the packaging. It has a sleek piano black design with elegant espresso side-panel highlights, and the HP Ambient Light lets you set a mood–or see your keyboard in the dark.