Topic 3 Hardware (3.1&3.2)

Multiple Select

Select all the components of the CPU

• ALU

• Control Unit

• Registers

• RAM

Multiple Choice

What is meant by a von Neumann computer architecture?

• Where the program instructions are stored in a seperate memory storage from the data

• Where the program instructions are stored in the same memory storage as the data

• Where the program instructions are stored in ROM and the data is stored in RAM

• Where the program instructions are divided across several CPUs

Multiple Choice

Which internal component carries out the processing of program instructions?

• CPU

• GPU

• RAM

• BIOS

Multiple Choice

What controls the timing of the instruction cycle in a computer

• The amount of RAM available

• The frequency of the internal clock

• The width of the address bus

• The size of addressable memory

Multiple Choice

A register inside the CPU in which intermediate arithmetic and logic results are stored

• Accumulator

• Program counter

• Memory Data Register

• Current Instruction Register

Multiple Choice

The part of the CPU that directs the operations of the processor

• Control unit

• ALU

• Registers

• Clock

Multiple Choice

A register inside the CPU that stores the memory address of the next instruction to be fetched from memory

• Accumulator

• Program counter

• Current Instruction Register

• Memory Data Register

Multiple Choice

What is the correct sequence of operations between CPU and RAM?

• Fetch-decode-execute

• Fetch-execute-decode

• Decode-fetch-execute

• Fetch-execute-fetch

Multiple Choice

Which is the main reason for having cache memory?

• To be able to run more powerful programs

• To compensate for the difference in speed of the CPU and RAM access times.

• To increase the size of main memory

• To allow you to run a program with less RAM

Multiple Select

Choose all the factors that could potentially affect the performance of the CPU ...

• Frequency of internal clock

• Number of processor cores

• Size of cache memory

• Type of cache (L1, L2, L3)

• Amount of RAM

Multiple Select

Choose 2 actions that could help improve the CPU performance ...

• Increase amount of RAM

• Replace dual-core with quad-core processor

• Increase size of cache

• Replace HDD with SSD

Multiple Choice

Describe the fetch-decode-execute cycle in CPU operation.

• The fetch step involves retrieving the next instruction from memory. The decode step interprets the instruction and determines what operation needs to be performed. The execute step carries out the operation specified by the instruction.

• The fetch step involves writing data to memory.

• The execute step interprets the instruction.

• The decode step determines the next instruction to fetch.

Multiple Choice

Which component of a computer is responsible for executing instructions?

• Solid State Drive (SSD)

• Graphics Processing Unit (GPU)

• Random Access Memory (RAM)

• Central Processing Unit (CPU)

Multiple Choice

What is the significance of the clock speed in a CPU?

• The clock speed in a CPU influences the battery life of a device

• The clock speed in a CPU controls the screen resolution

• The clock speed in a CPU indicates the number of instructions it can execute per second.

• The clock speed in a CPU determines the amount of storage capacity

Multiple Choice

Explain the concept of cache memory in a CPU.

• Cache memory in a CPU is a small, high-speed memory unit that stores frequently accessed data and instructions to reduce the average time to access memory. It helps speed up the processing by providing quick access to the most used data.

• Cache memory is a type of long-term storage in a CPU

• Cache memory slows down the processing speed of a CPU

• Cache memory is used to store data that is rarely accessed

Multiple Choice

Input or Output:

Microphone

• Input

• Output

Multiple Choice

Input or Output:

Monitor

• Input

• Output

Multiple Choice

Input or Output:

Keyboard

• Input

• Output

Multiple Choice

Input or Output:

Mouse

• Input

• Output

Multiple Choice

Input or Output:

Printer

• Input

• Output

Multiple Choice

Input or Output:

Speakers

• Input

• Output

Multiple Choice

Input or Output:

Barcode Scanner

• Input

• Output

Multiple Choice

Input or Output:

Projector

• Input

• Output

Match

Match the following

• Acoustic sensor measures...

• Accelerometer sensor measures...

• Flow sensor measures...

• Gas sensor measures...

• Humidity sensor measures ...

the level of sound in the environment

the acceleration

the amount of liquid, gas or ste

the presence and concentration of a gas

the level of moisture in the atmosphere

• the level of sound in the environment

• the acceleration

• the amount of liquid, gas or ste

• the presence and concentration of a gas

• the level of moisture in the atmosphere

Match

Match the following

• Infra-red sensor measures ...

• Level sensor measures...

• Light sensor measures...

• Moisture sensor measures...

• pH sensor measures ...

infra-red radiation

level or amount of a liquid

the light in a certain environment

amount of water present in a substance

the level of pH level

• infra-red radiation

• level or amount of a liquid

• the light in a certain environment

• amount of water present in a substance

• the level of pH level