COMPUTER SCIENCE
- Created by: V A P O R W A V E
- Created on: 13-12-16 12:22
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- COMPUTER SCIENCE
- DATA REPRESENT-ATION
- NUMBER BASES
- BINARY
- BASE 2- A COMPUTER MUST USE THIS
- HEX
- BASE 16- USED TO COMPRESS DATA
- DENARY
- BASE 10- WE USE THIS
- BINARY
- IMAGES
- BITMAPS
- QUALITY
- RESOLUT-ION
- NO. OF PIXELS
- MORE = BETTER QUALITY = LARGER FILE
- NO. OF PIXELS
- COLOUR DEPTH
- NO OF BITS USED TO DETERMINE COLOUR
- MORE = BETTER QUALITY = LARGER FILE
- NO OF BITS USED TO DETERMINE COLOUR
- RESOLUT-ION
- SOUND
- REPRESEN-TED IN BINARY
- THE PC TAKES SAMPLES OF THE ORIGINAL SOUND TO PRODUCE A NEW DIGITAL ONE.
- THIS CAUSES AN UNAVOIDA-BLE DROP IN QUALITY
- THE PC TAKES SAMPLES OF THE ORIGINAL SOUND TO PRODUCE A NEW DIGITAL ONE.
- QUALITY
- SAMPLE RATE
- SAMPLES PER SECOND. MEASURED IN Hz.
- GREATER SAMPLE RATE = BETTER QUALITY = LARGER FILE.
- SAMPLES PER SECOND. MEASURED IN Hz.
- SAMPLE RATE
- FILES
- MP3
- THESE ARE SMALLER AND THEREFORE EASIER TO TRANSFER.
- BECAUSE OF THIS, THE FILES ARE OF LESSER QUALITY THAN THE WAV.
- THESE ARE SMALLER AND THEREFORE EASIER TO TRANSFER.
- WAV
- THESE FILES ARE LARGER AND THEREFORE OF BETTER QUALITY.
- HOWEVER, THEY ARE HARDER TO TRANSFER THAN THE MP3.
- THESE FILES ARE LARGER AND THEREFORE OF BETTER QUALITY.
- MP3
- REPRESEN-TED IN BINARY
- NUMBER BASES
- PYTHON
- LOOPS
- FOR- REPEATS SET NO OF TIMES
- WHILE- REPEATS UNTIL A CONDITION IS FULFILLED
- VARIABLES
- THESE STORE VALUES. SPEAKING OF WHICH-
- VALUE TYPES
- INT- A WHOLE NUMBER E.G 7
- FLOAT- A NUMBER WITH DECIMAL POINTS e.g 45.4545
- STRING- TEXT E.G 'COMPUTER SCIENCE IS AWESOME'
- BOOLEAN- SIMPLE. 'TRUE' OR 'FALSE'
- VALUE TYPES
- THESE STORE VALUES. SPEAKING OF WHICH-
- OTHER STATEMEN-TS
- IF-ELSE: IF THIS IS TRUE DO THIS, ELSE DO THAT.
- PRINT(): PRINTS TO CONSOLE
- INPUT(): IT HAS MORE THAN ONE USE
- STOPPING PROGRAMS CLOSING
- GETTING A USER INPUT
- LOOPS
- DATA REPRESENT-ATION
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