3. Hardware
A section of Computer Science, 0478
Listing 10 of 184 questions
A computer can have both a MAC address and an IP address. Four statements are given about MAC addresses and IP addresses. Tick (✓) to show whether each statement is True or False. Statement True (✓) False (✓) A MAC address is unique to a computer on a network Once an IP address has been set it cannot be changed A MAC address is made up of the computer’s serial number and the IP address If a computer does not have an IP address it cannot communicate with another device using the Internet A computer uses the Von Neumann model and the stored program concept. Explain what is meant by the stored program concept. The Von Neumann model has several components that are used in the fetch‑execute cycle. One component is the Arithmetic Logic Unit (ALU). Describe the role of the ALU. The computer has an operating system. A signal causes the operating system to stop and assess what to do next. Identify the name of this signal. State two functions of an operating system.
0478_s19_qp_13
THEORY
2019
Paper 1, Variant 3
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Three statements about cookies are shown below. Study each statement. Tick (9) to show whether the statement is true or false. Statement True False Cookies can destroy or modify data in a computer without the user’s knowledge Cookies generate website pop-ups Cookies allow a website to detect whether a viewer has viewed specific web pages Two features of Von Neumann architecture are the use of registers and the use of buses. Give the names of two registers and two buses. Registers Buses
0478_w15_qp_11
THEORY
2015
Paper 1, Variant 1
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A student has a smartwatch. The smartwatch has built-in input and output devices. Identify two input devices that can be built into the smartwatch. Identify one output device that can be built into the smartwatch. The smartwatch has read only memory (ROM). Explain why the smartwatch needs ROM. The smartwatch uses a text message application that receives data from cloud storage. Describe what is meant by cloud storage. Explain two benefits of the application using cloud storage. The smartwatch only displays the time and text messages. A student incorrectly describes this smartwatch as a general-purpose computer. Explain why the student’s description is incorrect.
0478_w24_qp_12
THEORY
2024
Paper 1, Variant 2
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Name three different buses that are used in the fetch-execute cycle. Bus 1 ������������������������������������������������������������������������������������������������������������������������������������������������ Bus 2 ������������������������������������������������������������������������������������������������������������������������������������������������ Bus 3 ������������������������������������������������������������������������������������������������������������������������������������������������
0478_s17_qp_12
THEORY
2017
Paper 1, Variant 2
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Questions Discovered
184