information-handling software

information-handling software

1. database

   • benefits
     • fast access to data
     • easy editing
     • password protected
     • easy
   • add/change/delete data
   • search/sort into an order

2. key fields

   • unique record i.e student id

3. validation

   • ensures the data is reasonable/sensible
   • range check
   • length check

4. query

   • 'searches' specific records and fields to display
     • e.g. Type = Lucky One AND DateOfBirth = 06/05/1992

5. form

   • data entry = more attractive/secure

6. report

   • printed document w/ data from the database {analysed & organised specifically}

7. data types

   • currency
   • sound
   • video
   • text

8. ~

   • field
     • individual data item within a record
   • record
     • collection of related fields
   • file
     • collection of related records

9. storage of data

   • hard drive

10. security

    • physical
      • locks on doors
      • alarms
      • biometric system {e.g. fingerprints)
        • uses physical characteristics (e.g. eye, voice) to identify people