Other Flashcards
Advantages of ICT over manual methods
Speed of processing Repetitive processing Accuracy Security Data storage capacity Different outputs
Factors that effect the efficiency of data processing
Effects of Hardware Effects of Software Effects of communication Effects of the operating system Efffects of input
Problems with data processing
Insufficient testing
High cots
Abilities of the user
Speed of implemenation
Data protection Act 1998
Purpose EU transfers only Relevant Secure Own records Not kept for longer than needed Accurate Lawfully processed
Computer misuse Act 1990
Unatherised access without the intent to comit a crime e.g. hacking
Unatherised access with intent to comit a crime e.g. blackmail
Unatherised access with intent to modify data e.g. virus
Health problems with computer use
RSI - take regular breaks
Eye strain - use monitor filters
Back pain - adjustable chairs
Stress - training for users
Query
Searching the database
Import/export
transferring data to and from another program
Report
Formal output from the system
+/- of relational databse rather than flat file
+No data duplication
+Much easier to search for specific informaation
+Data may be combined more flexibly
-expensive