Page 11 - Computer_Science_F5

Computer Science Meaning of computer architecture (1950 – 1960s), and Flynn’s Taxonomy
(1966).
All computers, regardless of their
size, are founded on a set of computer
Von Neumann architecture
architecture principles describing how
hardware and software connect to make The Von Neumann architecture, named
FOR ONLINE READING ONLY
after mathematician and physicist John
them function.
von Neumann, refers to the traditional
Computer architecture, is the design computer architecture design where
and organisation of computer systems, instructions and data share the same
including the arrangement of hardware memory space. In this architecture,
components such as Central Processing a single bus system is used for both
Unit (CPU), memory, input/output devices, data and instructions, allowing the
system bus, and the control unit. The CPU to fetch and execute instructions
CPU executes instructions, and memory sequentially. It is characterised by a
stores data and programs, while input/ central processing unit (CPU), memory
output devices facilitate communication. unit, input/output (I/O) devices, and a
System bus links these components, and control unit, forming the foundation for
the control unit synchronises and manages most modern computing systems.
their operations. Computer architects play
a vital role in the design and optimisation Activity 1.1:
of this intricate process. They serve as
the masterminds behind the scenes, Simulation of Von Neumann
establishing the specifications, instruction architecture (Movement of data)
sets, and communication protocols that Aim:
ensure all these parts work seamlessly To enhance comprehension of how
together. these components work together to
execute instructions and process data
Classification of computer within a computer system.
architecture
Computer architecture classification is Materials:
the categorisation of different types of Computer, Johnny simulator software,
computer architectures based on their Internet if you don’t have a simulator
underlying design principles, organisation, Instructions:
and functionality These classifications are Using Johnny simulator, visualise and
Von Neumann architecture which was explore the three parts of the processor
proposed in 1940, followed by the Harvard in a Von Neumann architecture:
architecture (late 1940 – early 1950), Arithmetic Logic Unit, Random
Modified Harvard Architecture (late Access Memory (RAM) and Control
1950), non-Von Neumann architecture Unit.

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for Advanced Secondary Schools

Computer Science Form 5.indd 2 23/07/2024 12:32