The Dell Latitude D520 is a bulky business model notebook having dimensions of 336 W x 275 D x 40 H inches and weighing around 2.8Kg. It includes 14.1 inch WXGA+ wide screen having a resolution of 1,024 x 768 and also an optional SXGA+ display with 1,400 x 1,050 of resolution. D520 is powered by Intel’s latest GMA950 integrated graphics to support standard office applications. It can be used wirelessly because of the featured Dell Wireless 1490 Dual Band WLAN (a/g) Mini Card and Dell Wireless 350 Bluetooth.

Dell Latitude D520 features an Intel core Duo T2500 2GHz Processor or Intel Celeron M 1.6GHz, a 1.0GB, DDR2-667, 1 DIMM Memory, 100GB Hard Drive 9.5mm SATA 7200 RPM, and a standard DVD/CD-RW drive. D520 offers a good mixture of performance and battery life. The battery included is Lithium Ion 9-cell (85WHr) Primary Battery and the average sized AC adapter that weighs around 0.8 pound. The Operating Systems provided with it are Microsoft Windows XP Pro and SP2, and a keypad and touchpad with UPEK fingerprint reader are the featured input device types.

The Dell Latitude D600 is a light weight solid business laptop system having a crisp 14.1 inch SXGA+ display screen. Latitude D600 is an excellent choice for businesses looking to upgrade their laptop fleets as it is fairly fast notebook that delivers plenty of connections, good battery life, and upgradeability options especially for business users. The 14.1 inch screen is available with 1024 x 768 or 1400 x 1050 pixel resolutions.

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The Dell Latitude XI is a lightweight, sleek designed and an ultra portable business notebook. The Latitude XI packs the latest components and wide-screen display into a thin, featherweight case and battery life of six hours makes it ideal for traveling. It holds a 12.1 inch WXGA display and dimensions measured is 286 x 196.8 x 25 mm. It includes the Pentium M Processor ULV 733 (1.1 GHz), 256 MB RAM, and a 30 GB hard drive.

The Latitude XI uses integrated graphics i.e. Intel Graphics Media Accelerator and there are no inbuilt optical drives except an external modular bay with DVD/CD-RW support. Dell has also included built in Bluetooth and an option for 60 GB hard drive. Latitude XI supports Internet Explorer, Microsoft Outlook, Microsoft Word, Microsoft Excel, itunes, Picasa, and AOL Instant Messenger.

The Dell Latitude D610 is lightweight, solid and high capacity business laptop with decent battery life. The Sonoma based Latitude D610 is an excellent machine to use with 14.1 inch SXGA+ display screen having 1400 x 1050 resolution, Pentium M 760 Processor (2.0 GHz with 533 MHZ FSB), 512 MB (2 x 256) PC3200-DDR2 (400 MHz), and an ATI Mobility Radeon X300 graphics card.

D610 comes in a dark silver case having dimensions of 1.2 inches thick, 12.4 inches wide, and 10.1 inches deep. The keyboard features surprisingly large keys; especially Enter, Shift, Backspace and Tab are even larger than most desktop keyboards. It also features a track point and a touch pad of standard size with two buttons each but no scroll areas. Latitude D610 includes all the ports and connections that most business users need like serial and parallel ports, S-Video out, Gigabit Ethernet, one Type II PC Card slot, an integrated smart card slot, and microphone and headphone jacks.

Dell Latitude D410 is a 3.8 pound ultra-light; 1.2 inch thick ultra-portable and good performance laptop. All these features and long battery life makes it a travel companion. The Latitude D410 is packed with an Intel Pentium M 760 Processor (2 GHz with 533 MHz FSB) based on the 915 GM chipset with 512 Megs of 533 MHz DDR2 RAM.

Latitude D410 is based on the Intel’s Centrino notebook platform, ‘Sonoma’, which brings support for PCI Express, Serial ATA hard disks, DDR2 memory, and the new Express Card format. The display screen used is 12.1 inch XGA (1024 x 768) resolution screen which is conventional 4:3 ratio but it lacks the high contrast reflective coating. The keyboard is not comfortable to use because of small sized keys but the keyboard features the dual navigation and speaker volume control/mute buttons available above the keyboard.