Describe a scenario where the limitations of binary representation are evident when using a fixed number of bits. Explain the implications of these limitations in the context of digital audio sampling.
Limitations of Binary Representation (3 marks) Read More »
A graphic design program uses 24 bits to store the colour of a pixel in an image, with 8 bits for each of the red, green, and blue components. Discuss the limitations this system may encounter if the program were to support a wider range of colours or shades, and how this might affect the
Binary Representation Limitations (4 marks) Read More »
Explain the term ‘amplitude’ in the context of representing analogue sound in binary.
Amplitude and Sound (2 marks) Read More »
Define ‘sample rate’ and describe its importance in the digital representation of sound.
Sample Rate (2 marks) Read More »
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 »
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 »
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 »
Why was 7-bit ASCII replaced by extended ASCII and Unicode?
Why replace ASCII? (3 marks) Read More »
Explain what is meant by the term ‘resolution’ in the context of bitmap images.
Pixels and Resolution (1 mark) Read More »
Describe how a single pixel is represented in binary within a bitmap image.
Binary Representation of Images (2 marks) Read More »
