A451

Databases I do not understand therefore ......................................................................... The End YAY!




what is a db
give example of serial file db
                           " sequential db
db view
external
conceptual
physical
what is flat file db
what is hierarchical db

A451 - Networks

LAN (Local Area Network) supplies internet to a group of internet enabled devices in close proximity to each other such as a router in a house. This is useful for stuff like wireless printing however they have rubbish range therefore if you have an average sized house it is more than likely you will have very poor signal.

Software

First post of 2014 is to do with software ....... YAY!!!

So basically just use: http://benveggie1917computerprogramming451.blogspot.co.uk

cause that kid knows everything and it is a great blog for information.



QUESTIONS

1.) How can an IDLE help a programmer when producing source code ?

Colour codes your program and can check for syntax errors.



2.) Little Johnny is a systems manager of a large insurance company. He is choosing a general purpose        office software for the staff to use. He is considering installing open source software.
     a.) State what is meant by open source software.

Open source software is released with its source code and it can be modified.


     b.) Describe two reasons in favour of using open source software in this situation and also state two reasons against.


might be more suitable than the commercial equivalent
usually free
but
lack of support
may not be available for your required platform




3.) Describe the following types of common utility programs.
     a.) Editor
     b.) Disk Defraggers
     c.) Firewall

-Editor is a software for entering and editing text files
-Disk Defraggers reorganise memory/storage after you have removed/deleted files to make the software    run faster
-Firewalls restrict incoming and outgoing things for security reasons.