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OCR A-Level Computer Science
1.1 The characteristics of contemporary processors, input, output and storage devices
1.1.2 Types of processor
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Cards (32)
What operations does the Central Processing Unit (CPU) perform?
Arithmetic and logical
What is a multicore processor?
A single chip with multiple CPUs
Arrange the following processor features in order of increasing complexity:
1️⃣ Microprocessor
2️⃣ Microcontroller
3️⃣ Multicore Processor
Multi-core processors improve energy efficiency for multi-
tasking
The two primary processor architectures are Von Neumann and
Harvard
A disadvantage of the Von Neumann architecture is its limited
bandwidth
Single-core processors can perform parallel processing
False
RISC processors have a simple instruction set, while CISC processors have a complex instruction
set
What is a GPU designed for primarily?
Parallel graphics processing
DSPs
are specialized for processing digital
signals
Which type of processor has a specialized architecture for math-intensive operations?
DSP
A microprocessor is a single integrated circuit (IC) that contains the
CPU
The Von Neumann architecture uses a single memory space for both data and
instructions
How many cores does a single-core processor have?
One
What type of memory does the Von Neumann architecture use?
Single memory space
The Von Neumann architecture uses a single memory space for both data and
instructions
True
Match the architecture with its advantage:
Von Neumann ↔️ Simplicity
Harvard ↔️ Faster execution
Match the type of processor with its performance for multi-tasking:
Single-core ↔️ Limited
Multi-core ↔️ Excellent
RISC processors have faster execution speeds for simple tasks compared to
CISC
processors
True
GPUs have fewer but more powerful cores compared to CPUs
False
DSPs have specialized hardware units for
arithmetic operations
True
DSPs are often used in audio/video codecs, speech recognition, and digital
filters
A microcontroller integrates a CPU with memory and input/output peripherals on a single IC.
True
The Harvard architecture allows data and instructions to be fetched in parallel.
True
Multi-core processors can perform
parallel processing
.
True
The Harvard architecture uses separate memory spaces for data and instructions.
True
What type of memory spaces does the Harvard architecture use?
Separate
Multi-core processors execute tasks in
parallel
Which type of processor is more energy-efficient for single tasks?
Single-core
Match the processor type with its feature:
RISC ↔️ Low power consumption
CISC ↔️ Smaller code size
Match the processor with its application:
GPU ↔️ Graphics rendering
CPU ↔️ General computing
Match the processor type with its purpose:
DSP ↔️ Digital signal processing
CPU ↔️ General-purpose computing