1.1 System's Architecture

Match each part of the processor to its correct definition:

• Sends signals to direct the operations

• Register

• small memory for one address/instruction

• Cache

• fast memory - stores recent instructions

• Arithmetic Logic Unit

• Performs mathematical operations

• Control Unit

Reorder the following sentences describing a step in the Fetch-Decode-Execute:

• The Control Unit (CU) decodes the instruction stored in the Memory Data Register (MDR).

• Initially, the CPU's Control Unit uses the Program Counter (PC) to determine the address of the next instruction to be executed.

• Once the address of the instruction is known, it is placed into the Memory Address Register (MAR).

• The instruction at the address specified by the Memory Address Register (MAR) is fetched from RAM and placed into the Memory Data Register (MDR).

• The Arithmetic Logic Unit (ALU) executes the instruction.

Complete the paragraph by selecting terms from the list and selecting them in the correct places. Not all terms are used:

Embedded systems have limited ​ (a)   . They are often built into a ​ (b)   machine. Two examples of embedded systems are a ​​ (c)   and automated ​ (d)   in a car.

• functions
• larger
• actuator
• applications
• laptop
• lights
• microprocessor
• smaller
• washing machine
• change

Organize these options into the right categories:

Groups:

(a) CPU Components

,

(b) CPU Registers

• CIR

• Control Unit (CU)

• MAR

• Accumulator

• Program Counter (PC)

• MDR

• Input/Output (I/O) Unit

• Arithmetic Logic Unit (ALU)

• Cache Memory

The CPU is responsible for processing all instructions given to the computer by the user, following a specific Fetch, Decode, Execute ___

The Fetch, Decode, Execute Cycle involves fetching the instruction, decoding it into machine language, and then executing the instruction using the ___

The CPU is measured in ___ (Hz).

How does cache memory improve CPU performance by storing frequently used instructions?

How does the clock speed of a CPU affect its ability to process instructions?

How does the number of cores in a CPU affect its performance?