ICT/Computer Studies/IT help HERE only!

[zara]

lsn
guys
important

what do the lines in the syllabus represent. There are lines for many things, what does this mean?

it represents the new things which hv been included in the syllabus.....cz now its ICT...

[angell]

A hub is a device that connects a number of computers together to make a LAN.

The typical use of a hub is at the centre of a star network (or as part of a hybrid network) - the hub has cables plugged into it from each computer.
A hub is a ‘dumb’ device: if it receives a message, it sends it to every computer on the network. This means that hub-based networks are not very secure - everyone can listen in to communications.

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Router
A router is a network device that connects together two or more networks.

A common use of a router is to join a home or business network (LAN) to the Internet (WAN).

The router will typically have the Internet cable plugged into it, as well as a cable, or cables to computers on the LAN.
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Implementing the system
Implementation is the next stage of developing a new system, after design. This is where the new system is installed, including:  
•   writing programs          purchasing hardware and software
•   writing user documentation       testing the system using the test plan
•   installing networks          training staff
If the tests are not satisfactory then any problems will need to be corrected and the system tested again.  User documentation will be written to help staff become familiar with the new system. It will include:  
•   a user guide             installation details
•   input and output samples                    screen shots
•   error messages (troubleshooting)
When the system is ready to go on-line there are different ways of changing to the new system:  
•   Parallel running - running both the old and new system until you are certain the new system is working correctly. Parallel running is likely to be the most expensive as it involves doing the work twice for a period of time. However, it is the safest. If there are any bugs in the new system, you can always go back to the old system while the problems are corrected.
•   Pilot changeover - changing over in a small part of the company to start with. Only when the system is deemed satisfactory will it be rolled out to the rest of the organisation. A supermarket introducing a new 'self-scanning' system might choose to introduce it in two or three stores at first. This is a pilot changeover.
•   Direct changeover - the old system is scrapped and immediately replaced by the new system. With this option there is a danger that there may still be problems with the new system. Even though it is the most risky type of changeover, many companies use this method.


(Taken from external notes!)

[xTremep]

Thanks angel +rep

[sweetsh]

This is what im doing, seeing questions from the past papers and memorising the mark scheme. It's useful because questions are being repeated

[annie_angel]

thnk u SO MUCH angell!!!

[cactus_360]

This is what im doing, seeing questions from the past papers and memorising the mark scheme. It's useful because questions are being repeated

i am absolutely doing da same!!!!!!!   

cuz my teacher sucks

and i am having  tough time with algorithms..........................

r their any techniques to do it
or xxtremely good notes.....plzzzzz inform

[joel]

What is the difference between Phased Change over and Pilot changeover?

[Enia]

Ok here you go. these are the ones I have. I hope its of some use. And I hope I didn't misunderstand what u wanted @.@ cuz that would totally suck xD

[angell]

Phased Implementation is like only a PART of the SYSTEM is being changed, bit by bit

but in Pilot Changeover, the whole system is being implemented in only a PART of the company or branch.

[zara]

Can anyone please tell me the definition of

i.Router
ii.Hub
iii.Implementation

Thanks

Router>>It's hardware and software are tailored to the tasks of routing and forwarding the information.
It contains an operating system, RAM, flash memory and one or more processors.
It identifies the destination of the messages and send them via an appropriate route.
Hub>>It is a device for connecting each computer or terminal on a network and make them work as a single network segment. It does not manage any traffic that comes through them. Any data packets entering is broadcast out on any other part. Thus pasket collision results which slows down the smooth flow of the traffic.
Implementation>>It is the act of starting to use the computerised system in real situations after having designed and completed it.

[Kim]

What is the difference between Phased Change over and Pilot changeover?

the main differences
pilot is when a small part of the system is tried out on trial bases and if successful is implemented
phased is when an old system is changed into the new system in steps
hope this helps
if u need more explanation tell me

[angell]

Thank u Enia, thats what i was looking for.

Anyone explain the difference between an input and output form, please?

[Kim]

Thank u Enia, thats what i was looking for.

Anyone explain the difference between an input and output form, please?

u talkin about the forms the ones we have to make?

[angell]

no, in general. in some questions its an 'output' form

and in some its an 'input' form....

[Kim]

no, in general. in some questions its an 'output' form

and in some its an 'input' form....

my sir told dat wen they say input form the form will be empty but if they ay to make an output form that means u have to feel in the details as well