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Copying Out NotesCopying Out NotesCopying Out NotesCopying Out NotesCopying Out NotesCopying Out Notes
What is data?Data represents facts & figuresA set of data 2, 4, 3, 5, 6This has no meaning.Consider: 030877 has no meaning.But expressed as 03/08/1977 it does have meaning, it is a date.
Forms of dataMoving images (Video, animation)Static images (Photo, graphics)Text (Alphanumeric – letters, numbers & symbols) Number (Integer or Real)Date/time (DD/MM/YY, HH:MM:SS)Boolean (Logical, i.e. Yes or No)
These can be very simple…
Bar codes - Advantages• Speed, you can scan many items at the checkout
and have the till add up to the total to include discounts.
• Accuracy, it is estimated that 1 in every 70 million bar codes read incorrectly.
• Usability, operators can be low skilled, low paid and trained to use systems quickly, customers can even check them selves out.
• Cost effective, initial hardware and software costs may be high, be return on investment and cost savings are massive in comparison. Bar codes - Disadvantages
• If bar codes are wrinkled, distorted, inaccessible, ripped or damaged even slightly, the reader can have trouble reading them.
• Sometimes perfectly good bar codes don’t read leading to frustration, and the cashier manually entering the code, which could be done so in error.
• In large organisations, where staff turnover is high, training is ongoing and can be costly.
• Printing the codes requires a high quality printer as dot matric and inkjet printers do not done a good enough job to print them.
These can be very
detailed…
GIVE FIVE EXAMPLES INTELLECTUAL PROPERTY:
FILMSBOOKS
SOFTWAREMUSIC
PHOTOGRAPHY
GIVE FIVE EXAMPLES OF THREATS TO ICT SYSTEMS:
EMPLOYEESHUMAN ERROR
VIRUSESSPYWARE
ALL ORGANISATIONS (LARGE & SMALL) MUST
UNDERSTAND THE NEED TO PROTECT THEIR DATA AND INTELLECTUAL PROPERTY.
TRUE OR FALSE?
TRUE
WHAT ARE REQUIRED TO PROTECT DATA DURING TRANSMISSION?
NETWORK SECURITY MEASURESVIRTUALLY ALL BUSINESS, GOVERNMENT
AND ACADEMIC ENTERPRISES LINK UP THEIR DATA PROCESSING EQUIPMENT
WITH WHAT?A COLLECTION OF INTER- CONNECTED NETWORKS
SongNameExpressionModel
Ode/RhymeNote Cards
ImageSpelling
50 Nifty US SongsPvt Tim HallMVEMJSUNPRecall/Interpretation/Application/Analysis, Synthesis/Evaluation30 days…Quizzes
Receive? Chief? Achieve?
SongNameExpressionModel
Ode/RhymeNote Cards
ImageSpelling
50 Nifty US Songs (States)
Pvt Tim Hall (Amino Acids)
MVEMJSUNP (Planets)
Recall/Interpretation/Application/Analysis, Synthesis/Evaluation (Bloom)
30 days…(Days in the month)
Quizzes (Answers on reverse)
(BAT that is limp!)
Receive? Chief? Achieve? (ib4e)