O-LevelComputer ScienceAutomated and emerging technologies2210/11 · May/June 2016 · Q128 Marks
Name the following type of barcode: [Figure of QR code]
- (a)Name the following type of barcode: [Figure of QR code][1]
- (b)The barcode in part (a) contains the denary value 2640 Convert this value to hexadecimal. Write the value as a 12-bit binary number.[4]
- (c)An airport uses the type of barcode shown in part (a) to advertise local places of interest. Describe how a visitor landing at the airport could use these barcodes to help plan their visit.[3]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2016). The mark or mark type is shown in brackets.
- [1] (a) QR (quick response) Code
- [1] (b) A 5 0 (hexadecimal value)
- [1] (b) 1010 (binary for A)
- [1] (b) 0101 (binary for 5)
- [1] (b) 0000 (binary for 0)
- [1] (c) visitor scans the QR code with (the camera on) the mobile device
- [1] (c) App is used to read/interpret the QR code
- [1] (c) links to a website/opens a document ...
- [1] (c) ... to access local tourist information
- [1] (c) can store the QR code to refer to again for the information
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