CPU Key Stage 3

Untitled Lesson

By David Kang

Multiple Choice

What is the name of the hardware component shown in the image?

• Hard Disk Drive

• Power Supply Unit

• Motherboard

• Graphics Card

Multiple Choice

What is the name of this component, often referred to as the “brain” of the computer?

• Hard Drive

•  Graphics Card

• Processor (CPU)

• RAM Module

Multiple Choice

What is the name of this component, which temporarily stores data being used by the computer?

• Hard Drive
• Motherboard
• CPU
• RAM

Multiple Choice

What is the name of this component that handles visual output to the monitor?

• Motherboard
• RAM
• Graphics Card
• Power Supply

Multiple Choice

What is the name of this device, which stores data permanently even when the computer is turned off?

• Optical Disc Drive (ODD)
• USB Flash Drive
• Random Access Memory (RAM)
• Hard Disk Drive (HDD) or Solid-State Drive (SSD)

Multiple Choice

What is the name of this component, used to connect storage devices like hard drives to the motherboard?

• USB cable
• Ethernet cable
• SATA cable
• HDMI cable

Study this diagram carefully.

It shows the main components of a computer system and how they interact.


You will be tested on your ability to accurately draw and label this diagram from memory.

Multiple Choice

What happens during the Fetch stage?

• The CPU runs the instruction

• The CPU picks the next instruction from memory

• The output is sent to the screen

• The instruction is translated into sound

Multiple Choice

What does the CPU do in the Decode stage?

•  It deletes the instruction

• It stores the instruction for later

• It understands what the instruction means

• It sends the instruction to the printer

Multiple Choice

What happens in the Execute stage?

• The CPU interprets the instruction

• The instruction is broken into smaller parts

• The instruction is carried out or completed

• The CPU looks for new memory

Categorize

Options (3)

1,000 cycles per second

1,000,000 cycles per second

1,000,000,000 cycles per second

Match each unit with the number of cycles per second it represents.

Kilohertz (kHz)

Megahertz (MHz)

Gigahertz (GHz)

Fill in the Blanks

RAM stands for R_ _ _ _ _ A_ _ _ _ _  M_ _ _ _ _

Fill in the Blanks

ROM stands for R_ _ _  O_ _ _  M_ _ _ _ _