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Surya Prasad Dhakal
LUS@N COMPUTER CONSULTANCY SERVICE
SHREESHA HIMALAYAN BUSINESS MART
Putalisadak, Kathmandu,Nepal
Contact no :- +977 - 01 - 4245403, 9841313530, 9741073413
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Saturday, June 12, 2010
Adapting To Office 2007
Most Office 2007 programs sport a dramatically different interface, as well as new file formats. Here are some tips on how to adapt.
Users can download the Office 2007 Compatibility Pack to install over Office 2000, Office XP, or Office 2003.Microsoft has developed a set of file converters to allow users with older Office versions to open, edit, and save files saved in Office 2007’s new file format. Microsoft has add-ins available to add "save as PDF" functionality directly to Office 2007 programs, as well as a set of file converters to allow users with Office 2003 and earlier to open and save files in the new compressed file formats. That's quite handy instead of upgrading the entire office at once!
The first thing everyone notices about Office 2007 is the new interface. Gone are the traditional File, Edit, View, Tools menus. In their place we have The Ribbon. The ribbon is basically a tabbed set of toolbars. Three rows high, it groups related items like font settings, styles, page setup options, and so on, on tabs named things like Home, Insert, and Page Layout, so users can more easily find them. In addition settings are "live," for instance as one moves up and down the list of font sizes, the words actually change size on the page.
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FANS OF LUS@N COMPUTER
Network Topologies
· Bus - This topology is an old one and essentially has each of the computers on the network daisy-chained to each other. This type of network is usually peer-to-peer and uses Thinnet (10base2) cabling. It is configured by connecting a "T-connector" to the network adapter and then connecting cables to the T-connectors on the computers on the right and left. At both ends of the chain, the network must be terminated with a 50 ohm impedance terminator. If a failure occurs with a host, it will prevent the other computers from communicating with each other. Missing terminators or terminators with an incorrect impedance will also cause problems.
As you can see if computer #1 sends a packet to computer #4, it must pass through computers #2 and #3, creating excess traffic.
ADVANTAGES: Cheap, simple to set up.
DISADVANTAGES: Excess network traffic, a failure may affect many users, problems are difficult to troubleshoot.
· Star - The star topology uses twisted pair (10baseT or 100baseT) cabling and requires that all devices are connected to a hub.
ADVANTAGES: centralized monitoring, failures do not affect others unless it is the hub, easy to modify.
DISADVANTAGES: If the hub fails then everything connected to it is down. This is like if you were to burn down the phone company's central office, then anyone connected to it wouldn't be able to make any phone calls.
· Ring - The ring topology looks the same as the star, except that it uses special hubs and ethernet adapters. The ring topology is used with Token Ring networks.
ADVANTAGES: Equal access.
DISADVANTAGES: Difficult to troubleshoot, network changes affect many users, failures affect many users.
· Hybrid - Hybrid topologies are combinations of the above and are common on very large networks. For example, a star bus network has hubs connected in a row (like a bus network) and has computers connected to each hub as in the star topology.
· Mesh - In a true mesh topology every node has a connection to every other node in the network. A full mesh network can be very expensive, but provides redundancy in case of a failure between links.
ADVANTAGES: World-wide acceptance. Ranges over 150 feet. Freedom to move about and no cables (obvious).
DISADVANTAGES: Susceptible to interference from objects such as microwave ovens and cordless phones
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