Georgia is a wedding photographer. She wants to store 10 photographs on a USB flash memory drive for a customer. Each photograph is 100 pixels wide and 50 pixels high. The photographs are 8-bit colour photographs. (a) Calculate the total file size, in kilobytes (kB), of all the photographs. For this calculation, you may use the unit of measurement of 1024 or 1000. Show all your working. \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ Answer \_\_\_\_ kB [3] (b) Georgia compresses photographs to store them on the USB flash memory drive. It is important that the compression does not affect the quality of the photographs in any way. State which type of compression is the most suitable. Justify your choice. Compression type \_\_\_\_ Justification \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ (c) Georgia uses a digital camera. The digital camera takes a photograph that is then converted into a digital image. Complete the paragraph about the operation of a digital camera, using the most appropriate terms from the list. Not all terms in the list need to be used. - analogue-to-digital - binary - charge-coupled - digital-to-analogue - lens - light - mirror - pixel - reflection - sensor - storage When Georgia pushes the button to take a photograph, an aperture opens at the front of the camera to allow \_\_\_\_ to stream in through the \_\_\_\_. This is captured by a sensor called a \_\_\_\_ device. The \_\_\_\_ converter then converts each \_\_\_\_ into a digital value.

2021 - O/N - 0478/11 | Q4

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Georgia is a wedding photographer. She wants to store 10 ...