1
Q
What is a bit?
A
A bit, also known as a binary digit, is the smallest unit of data in computing and is represented by a 0 or a 1.
2
Q
What is a byte?
A
A byte is a group of 8 bits.
3
Q
What is binary?
A
Binary is a base 2 numeral system.
4
Q
What is denary/decimal?
A
Denary, also known as decimal, is a base 10 numeral system.
5
Q
What is hexadecimal?
A
Hexadecimal is a base 16 numeral system.
IB Computing 2025
flashcards
Decks in class (73)
# Cards
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1.1.1 - Identify the context for which a new system is planned.13
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1.1.2 - Describe the need for change management.6
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1.1.3 - Outline compatibility issues resulting from situations including legacy systems or business mergers.7
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1.1.4 - Compare the implementation of systems using a client’s hardware with hosting systems remotely.10
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1.1.5 - Evaluate alternative installation processes.8
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1.1.6 - Discuss problems that may arise as a part of data migration.7
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1.1.7 - Suggest various types of testing.13
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1.1.8 - Describe the importance of user documentation.6
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1.1.9 - Evaluate different methods of providing user documentation.9
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1.1.10 - Evaluate different methods of delivering user training.9
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1.1.11 - Identify a range of causes of data loss.12
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1.1.12 - Outline the consequences of data loss in a specified situation.5
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1.1.13 - Describe a range of methods that can be used to prevent data loss.7
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1.1.14 - Describe strategies for managing releases and updates.7
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1.2.1 - Define the terms: hardware, software, peripheral, network, human resources.9
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1.2.2 - Describe the roles that a computer can take in a networked world.7
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1.2.3 - Discuss the social and ethical issues associated with a networked world.5
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1.2.4 - Identify the relevant stakeholders when planning a new system.5
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1.2.5 - Describe methods of obtaining requirements from stakeholders.8
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1.2.6 - Describe appropriate techniques for gathering the information needed to arrive at a workable solution.7
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1.2.7 - Construct suitable representations to illustrate system requirements.4
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1.2.8 - Describe the purpose of prototypes to demonstrate the proposed system to the client.4
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1.2.9 - Discuss the importance of iteration during the design process.3
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1.2.10 - Explain the possible consequences of failing to involve the end-user in the design process.3
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1.2.11 - Discuss the social and ethical issues associated with the introduction of new IT systems.4
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1.2.12 - Define the term usability.8
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1.2.13 - Identify a range of usability problems with commonly used digital devices.6
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1.2.14 - Identify methods that can be used to improve the accessibility of systems.3
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1.2.15 - Identify a range of usability problems that can occur in a system.4
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1.2.16 - Discuss the moral, ethical, social, economic and environmental implications of the interaction between humans and machines.5
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2.1.1 - Outline the architecture of the central processing unit (CPU) and the functions of the arithmetic logic unit (ALU) and the control unit (CU) and the registers within the CPU.9
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2.1.2 - Describe primary memory.4
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2.1.3 - Explain the use of cache memory.4
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2.1.4 - Explain the machine instruction cycle.8
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2.1.5 - Identify the need for persistent storage.10
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2.1.6 - Describe the main functions of an operating system.6
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2.1.7 - Outline the use of a range of application software.7
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2.1.8 - Identify common features of applications.5
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2.1.9 - Define the terms: bit, byte, binary, denary/decimal, hexadecimal.5
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2.1.10 - Outline the way in which data is represented in the computer.4
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2.1.11 - Define the Boolean operators: AND, OR, NOT, NAND, NOR and XOR.6
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2.1.12 - Construct truth tables using the above operators.7
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2.1.13 - Construct a logic diagram using AND, OR, NOT, NAND, NOR and XOR gates.1
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3.1.1 - Identify different types of networks.14
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3.1.2 - Outline the importance of standards in the construction of networks.3
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3.1.3 - Describe how communication over networks is broken down into different layers.8
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3.1.4 - Identify the technologies required to provide a VPN.4
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3.1.5 - Evaluate the use of a VPN.3
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3.1.6 - Define the terms: protocol, data packet.3
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3.1.7 - Explain why protocols are necessary.10
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3.1.8 - Explain why the speed of data transmission across a network can vary.6
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3.1.9 - Explain why compression of data is often necessary when transmitting across a network.5
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3.1.10 - Outline the characteristics of different transmission media.4
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3.1.11 - Explain how data is transmitted by packet switching.4
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3.1.12 - Outline the advantages and disadvantages of wireless networks.2
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3.1.13 - Describe the hardware and software components of a wireless network.2
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3.1.14 - Describe the characteristics of wireless networks.4
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3.1.15 - Describe the different methods of network security.7
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3.1.16 - Evaluate the advantages and disadvantages of each method of network security.6
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6.1.1 - Identify the resources that need to be managed within a computer system.9
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6.1.2 - Evaluate the resources available in a variety of computer systems.7
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6.1.5 - Explain the role of the operating system in terms of managing memory, peripherals and hardware interfaces.7
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6.1.7 - Outline OS resource management techniques: scheduling, policies, multitasking, virtual memory, paging, interrupt, polling.7
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6.1.8 - Discuss the advantages of producing a dedicated operating system for a device.4
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6.1.9 - Outline how an operating system hides the complexity of the hardware from users and applications.4
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7.1.1 - Discuss a range of control systems.15
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7.1.2 - Outline the uses of microprocessors and sensor input in control systems.8
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7.1.3 - Evaluate different input devices for the collection of data in specified situations.12
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7.1.4 - Explain the relationship between a sensor, the processor and an output transducer.6
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7.1.5 - Describe the role of feedback in a control system.4
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7.1.6 - Discuss the social impacts and ethical considerations associated with the use of embedded systems.4
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7.1.7 - Compare a centrally controlled system with a distributed system.5
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7.1.8 - Outline the role of autonomous agents acting within a larger system.7
