ict help sheet
output devices that you would expect to be with a general purpose home desktop computer- 1. digital sperakers 2.printer
name one device you would expect to find in a desktop tower-soundcard,motherboard,graphics card
describe diffrencs between a lan and a wan-a lan is as small circut wich covers a home or school or ofice this is an example of this, a wan is a larger circut wich will cover a town for exmaple west malling and it is also world wide
why a memory stick is popular-easy to carry around.cheap,more memory space
explain how you can uswe a data base to incrwease ways of profit-reduce costs,increase selling prices .
you would use barcodes for a dta capture method wich would be used for collecting informationm about items wich are rented out.
the operanting system does carrys the operainton of copy,delete,rename,save
a real timer operatign system-the procceisng of data immediatly upon receipt
text field is used for numbers if not needed for a calculation.
explain how data validation could be used to improvwe the accuracy of information being input into a database-data for type check and ranhe check and check digits and lookups explain how they ensure only accurtae dta can be entered