Sound Representation (6 marks)
Describe the entire process of how analogue sound is represented in binary, referring specifically to amplitude, sample rate, bit depth, and sample interval.
Sound Representation (6 marks) Read More »
Data Representation
Bit Depth (2 marks)
What is ‘bit depth’ in the context of sound and why is it significant when converting analogue sound to binary?
Bit Depth (2 marks) Read More »
Sample Rate (2 marks)
Define ‘sample rate’ and describe its importance in the digital representation of sound.
Sample Rate (2 marks) Read More »
Amplitude and Sound (2 marks)
Explain the term ‘amplitude’ in the context of representing analogue sound in binary.
Amplitude and Sound (2 marks) Read More »
Colour Depth Implication (3 marks)
Explain the effect of increasing the colour depth on the file size and image quality of a bitmap image, providing two implications for each.
Colour Depth Implication (3 marks) Read More »
Calculating Image Size (4 marks)
Calculate the file size of an uncompressed bitmap image that has a resolution of 1024×768 pixels and a colour depth of 24 bits. Provide your answer in the most sensible unit of measurement (bytes, kilobytes, or megabytes).
Calculating Image Size (4 marks) Read More »
Colour Depth (3 marks)
A bitmap image uses a colour depth of 8 bits. Explain the implication of this in terms of the colour range available for each pixel in the image.
Colour Depth (3 marks) Read More »
Binary Representation of Images (2 marks)
Describe how a single pixel is represented in binary within a bitmap image.
Binary Representation of Images (2 marks) Read More »
Pixels and Resolution (1 mark)
Explain what is meant by the term ‘resolution’ in the context of bitmap images.
Pixels and Resolution (1 mark) Read More »
Why replace ASCII? (3 marks)
Why was 7-bit ASCII replaced by extended ASCII and Unicode?
Why replace ASCII? (3 marks) Read More »