1.1 System's Architecture

Match each part of the processor to its correct definition:

• fast memory - stores recent instructions

• Register

• Sends signals to direct the operations

• Control Unit

• Performs mathematical operations

• Cache

• small memory for one address/instruction

• Arithmetic Logic Unit

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

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

• 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.

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

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

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

• Input/Output (I/O) Unit

• Accumulator

• Program Counter (PC)

• MDR

• MAR

• Cache Memory

• CIR

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

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?