A logical topology is how devices appear connected to the user. A physical topology is how they are actually interconnected with wires and cables. For example, in a shared Ethernet network that ...

In this chapter, we will look at the techniques and issues associated with designing a physical network topology (the physical arrangement of the nodes and the connectivity offered by links).

High-level versus low-level. Logical implies a higher view than the physical. Users relate to data logically by data element name; however, the actual fields of data are physically located in ...

The 10 largest data centres in South Africa have a combined IT load of 258MW, with total whitespace of 112 000sq m.

It allows a business to maintain liquidity while growing operations. Generally, capital is used to refer to physical assets in business. It is also used to refer to how companies obtain physical ...

Looking for an alarm system to make you feel more secure? We've tested all the top professional-install and DIY home security ...

Physical chemists are focused on understanding the physical properties of atoms and molecules, the way chemical reactions work, and what these properties reveal. Their discoveries are based on ...

Physical capital is one of what economists call the three main factors of production. It consists of tangible, human-made goods that assist in the process of creating a product or service.

In recent years, many physicists and materials scientists have been studying a newly uncovered class of magnetic materials ...

A biological and physical sciences major takes a flexible, broad approach to science. Students can tailor their coursework to fit an area of interest, such as environmental science, forensic ...