The topic sentence is usually the first sentence of a paragraph, but not necessarily. It may come, for example, after a transition sentence; it may even come at the end of a paragraph. Topic sentences are not the only way to organize a paragraph, and not all paragraphs need a topic sentence.
1 Network installation costs are also influenced by the number of areas in which installation services will be performed. 2  For a two-to three-room installation, costs may range from approximately $160 to $250, while an entire house with network installations in six to seven rooms can cost about $420 to $840. Plan on spending at least $100 to $150 per room. 2  So for instance, if you were to have three rooms, it could cost about $300 to $450. 3  According to Homewyse.com, the average cost to install computer network wiring is $149.93 to$196.03 per connection.
1 A wireless-G PCI adapter like the Cisco-Linksys WMP54G Wireless-G PCI Adapter costs around $36. 2  Professional installation is also available for those who would prefer outside help. 3  Best Buy's Geek Squad can set up a wireless network for $150, each additional computer or device to the network costs $49. These routers cost anywhere from $70 to $170 depending on what features and capabilities get implemented. 2  The D-Link DIR-655 Extreme N Wireless Router at $90 is good choice.