AS & A Level Computer Science (9618) — May–June 2025, Paper 13
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A student paints a picture in an art class. The student takes a photograph of the picture using a digital camera. The digital camera creates an image with a resolution of 2…
Answer this question and get it marked →A computer has a processor. The processor has a Control Unit (CU) and system clock. Explain how the CU and the system clock work together.
Answer this question and get it marked →A programmer is writing a program in a high-level language. Complete the description of compilers and interpreters by writing the missing words. A compiler checks all the code…
Answer this question and get it marked →Write the logic expressions for the following logic circuit. The circuit has four inputs A, B, C and D on the left and two outputs X and Y on the right. Inputs A and C feed a NOR…
Answer this question and get it marked →The following table shows part of the instruction set for a processor. The processor has two registers: the Accumulator (ACC) and an Index Register (IX). Opcode Operand…
Answer this question and get it marked →A shop sells pens to customers. Customers place an order with the shop and collect the items the next day. The shop uses a database to store the information about the orders. The…
Answer this question and get it marked →A computer can perform logical and arithmetic shifts. Show the result of a logical left shift of 2 places on the two's complement binary integer 11001010.
Answer this question and get it marked →