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AIN2601 - QUESTIONS - study guide 1 _ (DETAILED 100- SURE ANSWERS) Semester 1 2024.pdf
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AIN2601 - QUESTIONS - study guide 1 _ (DETAILED 100- SURE ANSWERS) Semester 1
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8/3/24, 2:56 PMJeremiah
AIN2601 - QUESTIONS - study guide 1
Terms in this set (82)
When does raw data become valuable? When processed into information and used for decision making.
What is the difference between data and Information is data that have been processed into something meaningful that can be
information? used in decision making.
Activities
Data entry
What are the steps in the computerised
Data processing
information system process?
Output and storage of data and information
Making decisions
Accurate
Complete
List the characteristics of quality data.
Reliable
Verifiable
Define Source Document The first documented record of an activity that took place.
batch input
Name two input methods.
online input
similar source documents grouped together, and entered in the CIS periodically (daily /
Define batch input.
weekly / monthly)
When a huge number of similar source documents must be captured;
When is batch input suitable? When up-to-date data and information are only required on the same frequency as the
frequency of data capturing.
Increased productivity
What is the advantage of batch input?
lower hardware cost
What is the disadvantage of batch input? The CIS is not up to date with the latest data and information.
Define online input data being immediately captured into the CIS at the point where the activity occurs
What is the advantage of online input? The data in the CIS is always up to date.
More costly than batch as hardware is required to capture the data at each point where
What is the disadvantage of online input?
the activity to be captured takes place.
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classifying data
performing calculations
What methods can be used to process data
sorting data
into information?
summarising data
transforming data
Give an example of the processing method Cash sales vs credit sales
'classifying data'.
Give an example of the processing method Calculating the cost per unit (cost / number of units)
'performing calculations'.
Give an example of the processing method Customer names in alphabetical order
'sorting data'.
Give an example of the processing method Extracting all the transactions for one specific supplier.
'summarising data'.
Give an example of the processing method Data is converted into a graph
'transforming data'.
Batch processing
Name the two processing types.
real-time processing
when the transaction files are updated to the master files periodically (daily / weekly /
Define batch processing
monthy)
the immediate update of the transaction files to the master files as the transaction
Define real-time processing
occurs
What is the greatest advantage of real-time the master files are always up to date
processing?
batch output
Name the two output types.
interactive output
Define batch output when all requests for information are processed periodically (daily / weekly / monthly)
when users are directly connected to the CIS and can request certain information and
Define interactive output
receive it immediatey
batch input, batch processing and batch output;
batch input, batch processing and interactive output;
Name the four typical processing systems.
online input, batch processing and interactive output;
online input, real-time processing and interactive output
Give an example of a system for which batch A medical aid: claims are entered in batches, batches are updated at the end of the day,
input, batch processing and batch output routine reports are generated weekly.
would be suitable.
Give an example of a system for which batch A gym: a batch of source documents to medical aid with information on gym vists, file is
input, batch processing and interactive processed when received (the entire batch), members can view their information online
output would be suitable. once processed.
Give an example of a system for which Stationery ordering: each department enters its order when needed, stationery orders
online input, batch processing and are processed once a week, office manager can view stationery order information
interactive output would be suitable. directly on the system.
Give an example of a system for which Bank ATM: customer does the transaction online at the ATM, the transaction is
online input, real-time processing and immediately uploaded to the master file, customer gets receipt with new balance.
interactive output would be suitable.
Users
List the three components of a database
database management system
environment.
physical database
AIN2601 - QUESTIONS - study guide 1
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