Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that endangers the functioning of a radio navigation or other safety service or seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service. Radio communications services include but are not limited to AM/FM commercial broadcast, television, cellular services, radar, air-traffic control, pager, and Personal Communication Services (PCS). These licensed services, along with unintentional radiators such as digital devices, including computers, contribute to the electromagnetic environment.

Electromagnetic Compatibility (EMC) is the ability of items of electronic equipment to function properly together in the electronic environment. While this computer has been designed and determined to be compliant with regulatory agency limits for EMI, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference with radio communications services, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

•Reorient the receiving antenna.

•Relocate the computer with respect to the receiver.

•Move the computer away from the receiver.

•Plug the computer into a different outlet so that the computer and the receiver are on different branch circuits.

If necessary, consult a Dell Technical Support representative or an experienced radio/television technician for additional suggestions.

Dell computers are designed, tested, and classified for their intended electromagnetic environment. These electromagnetic environment classifications generally refer to the following harmonized definitions:

•Class A is typically for business or industrial environments.

•Class B is typically for residential environments.

Appendix

115

Page 114 Page 116
Page 115
Image 115
Dell 4400 manual Appendix 115
Page 114 Page 116

4400 specifications

The Dell 4400, a notable product in the Dell lineup, is widely recognized for its powerful performance and versatility. Primarily targeted at small to medium-sized businesses and home offices, the Dell 4400 combines cutting-edge technology with user-friendly features, making it a preferred choice for professionals on the go.

One of the standout features of the Dell 4400 is its robust processing power. Equipped with Intel processors, users can expect seamless multitasking capabilities, enabling them to run multiple applications simultaneously without a hitch. The integration of advanced graphics options allows for an enhanced visual experience, making it suitable for graphic designers and multimedia creators.

Storage capacity on the Dell 4400 is another significant advantage. With various configurations available, users can choose between traditional hard drives and solid-state drives, offering flexibility based on their storage needs. The faster read and write speeds of solid-state drives improve overall system performance and contribute to quicker boot times and application loading.

Connectivity options are expansive on the Dell 4400. The system features a range of USB ports, HDMI, and Ethernet ports, catering to various peripherals and networking requirements. This ensures that users can easily connect to external devices like printers, scanners, and external monitors without facing compatibility issues.

In terms of durability, the Dell 4400 boasts a sturdy design that can withstand the rigors of everyday use. High-quality materials are used in its construction, ensuring longevity and reliability. This durability is complemented by efficient cooling systems that prevent overheating, further enhancing the lifespan of the device.

Security features are integrated into the Dell 4400 to protect sensitive information. This includes options for biometric authentication, such as fingerprint readers, alongside standard encryption software. Such measures are critical in today’s digital age, where cybersecurity is paramount.

With its combination of powerful hardware, versatile connectivity, robust storage options, and proactive security features, the Dell 4400 stands out as a reliable choice for both professionals and everyday users. Whether for business applications, creative work, or general home use, the Dell 4400 delivers exceptional performance and functionality. This makes it a valuable asset in any working environment.
Top Page Image Contents