Introduction to Information Systems and Data Flashcards
What are the Seven Information Processes?
Collecting Organising Analysing Storing and Retrieving Processing Transmitting and Recieving Displaying
What is Organising?
The information process by which data is structured into a form appropriate for the use of other information processes.
What is Storing and Retrieving?
The process by which data and information is saved and accessed later.
What is Processing?
A procedure that manipulates data and information.
What is Transmitting and Recieving?
The process that sends and receives data and information within and beyond information systems.
What is Displaying?
The process that controls the format or information presented to the participant or user.
What is Collecting?
The process by which data is entered into our database, captured by a computer system, including:
Deciding what data is required
How it is sourced
How it is encoded for entry into the system
What is Structuring of Data?
The structure is the design that suits the information.
What is Representing?
Representing is the coding of every individual essence of data that allows the data to be used by other information systems.
What is Analysing?
The process by which data is interpreted, transforming it into information.
What does the term ‘multimedia’ involve?
Text Numbers Image Audio Video
What are the two methods commonly used to represent digital text?
ASCII (American Standard Code for Information Interchange)
EBCDIC (Extended Binary Coded Decimal Interchange Code)
How does ASCII gets to be represented?
It uses a decimal number range from 0 to 127
What do Bitmaps mainly represent?
They represent every single element or dot in a picture
How do Vectors represent images?
Vectors represent by building every portion of the Image mathematically
How does Audio work in Binary?
Two ways: catching the actual sound at precise intervals of time and describe the sound in terms of the properties of each individual note.
What is Sampling?
It’s the Level, or instantaneous amplitude, of the signal that was recorded at precise intervals as each sample is stored as a binary number.
What’s an Individual Note?
An Individual Note is basically a representation of a musical note that determines pitch and duration.
What’s the most common storage for traditional music?
MIDL (Musical Instructments Digital Interface)
How does Binary Representations of musical notes compare to similar sound systems?
Binary Representations are way more smaller and need more processing power to turn the data into sound waves.
What is Video?
The combination of Image and Sound to present Information.
What is Digital Data?
Digital Data is data that is coded by using numbers
