Factors to be considered when buying a laptop:
Laptops tend to lag behind desktops when it comes to upgradeability and features. So depending on what you need it for you should consider whether a desktop would be better equipped for your needs. Also you will not be able to upgrade your laptop when needed.
Portability: the whole point of a laptop is mobility so look at weight and size when purchasing.
Speed: laptops are generally slower then desktops. So again look at whether would be better suited for your needs.
Memory: it is very important you look at memory when first buying your laptop as most only have to expansion slots.
Batteries: Lithium batteries are superior to other kinds. The typical full size laptop will run between 1-2 hours on its battery. Some laptops can run between 6-8 hours on their batteries. If long battery life is import ant to you, enquire about battery life before you purchase your laptop.
Expense: in general laptops are more expensive then desktops. For the most basic laptops the cost starts around 300-400 euro.
Hard drive: if you need lots of space for storing files it is better to get a bigger hard drive but if it is not your only source you can get the minimum size.
Then depending on your usage look at features like CD-RD/DVD-RD, easy access ports like USB and screen resolution.
Monday, November 30, 2009
In a massive cave beneath a cristian cathedral in helsinki, finland a city power firm is developing a data center which will apparantly be the greenist on the planet.
Uspenski cathedral is one of helsinkis most tourist sites and will have located under neat it a computer data system. The excess heat from the computer servers will be channeled into a heating network used to heat homes in finland's capital. This is known as cloud computing.
Data centers such as those run by Google already use around 1 percent of the world's energy, and their demand for power is rising fast. One major problem is that in a typical data center only 40-45 percent of energy use is for the actual computing the rest is used mostly for cooling down the servers.
The green part is, besides providing heat to homes in the Finnish capital, the new Uspenski computer hall will use half the energy of a typical data center. Its input into the district heating network will be comparable to one large wind turbine, or enough to heat 500 large private houses. Also when expanned as planned, it will cut 375,000 euros off the companies annual bill.
Small town residents lay their own fiberoptic cabling
Residents in a small town in north england have started laying their own fiberoptic cables themselves.
When BT refused them broadband, Cybermoor was created and houses were soon being hooked up to the wireless broadband.
Deciding Cybermoor needed an upgrade, volunteers for the town were recruited to help.
By the end of the year the project is expected to be finished. Residents can expect speeds of 20Mbps, via the cable and a microwave link to Newcastle, rising to 100Mbps when Cybermoor can afford the 100Mbps backhaul connection.
When BT refused them broadband, Cybermoor was created and houses were soon being hooked up to the wireless broadband.
Deciding Cybermoor needed an upgrade, volunteers for the town were recruited to help.
By the end of the year the project is expected to be finished. Residents can expect speeds of 20Mbps, via the cable and a microwave link to Newcastle, rising to 100Mbps when Cybermoor can afford the 100Mbps backhaul connection.
Monday, October 12, 2009
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