21 terms

Digital Media - Data Handling

Year 9 Information and Software Technology Redeemer Baptist School Teacher: Murray Garth
STUDY
PLAY
Analogue
Data from the natural world having an infinite number of possible values.
ASCII (acronym)
American Standard Code for Information Interchange
Binary
A number system that uses just two values, '0' and '1'.
Bit
A single binary digit, the smallest unit of storage.
Byte
A group of 8 bits. Can store a value from 0 to 255.
ASCII (definition)
A standard method of storing keyboard characters and control keys as binary data values.
Bit (contraction)
Binary Digit.
RAM (Acronym)
Random Access Memory
Random Access Memory (definition)
It is used to store data and and software that your computer uses. When computer is turned off everything in it is deleted.
Information
Data organised or displayed to make it useful and meaningful
Data
Raw facts without any clear meaning.There are 5 main types of it.
Sorting
A process of arranging data in a set order, making it more meaningful.
Searching
The process of selecting data from a list that matches a given rule, making the data more useful.
Continuous
Data from the natural world is __________ and has an infinite number of values.
Digital
The representation of information as individual pieces of data using whole numbers, rather than as a continuous stream
Digitising
The process of converting from analogue data to digital data.
Data Sample
A single measurement of an analogue waveform expressed as a number.
Digital Camera
A device that converts analogue light into digital data and stores it for later reproduction
Sound Card
A computer output component that converts digital audio data into an analogue sound wave.
45
101101 = 32 + 8 + 4 + 1
53
110101 = 32 + 16 + 4 + 1