Logic Gates

Open Ended

How do these devices *know* what to do and when to do it?

Multiple Choice

What is the two-state system that computers understand?

• Binary

• Decimal

• Hexadecimal

• Octal

Open Ended

What is a Logic Gate and how does it function in digital circuits?

Multiple Choice

What conditions must be met for the automatic greenhouse watering system to turn on?

• The soil must be wet and the temperature is cold.

• The soil must be dry and the temperature is hot.

• The soil must be dry and the temperature is cold.

• The soil must be wet and the temperature is hot.

Multiple Choice

What is the output of the OR gate when both inputs are OFF?

• 1 (ON)

• 0 (OFF)

• 1 (ON) if either input is ON

• 0 (OFF) if both inputs are ON

Multiple Choice

What is the function of a NOT gate in a backup power system?

• It turns ON when main power is available

• It inverts the signal

• It provides constant power

• It connects multiple inputs

Multiple Choice

Match the real-world problem to the logic gate that solves it: 1. A security alarm triggers if it is nighttime AND it detects movement. 2. A car alarm sounds if the driver's door OR the trunk is opened. 3. A cooling fan turns on when the room is NOT cool.

• AND

• OR

• NOT

• NAND

Multiple Choice

What is the role of the output of one gate in a circuit?

• It becomes the input for the next gate

• It is discarded

• It is the final output

• It is used for storage

Multiple Choice

What conditions must be met for the washing machine to start?

• The start button is pressed

• The timer is on

• The machine is full of washing

• All of the above

Multiple Choice

What is the output Q when Input A is 1, Input B is 1, and Input C is 1?

• 0

• 1

• 2

• 3

Multiple Choice

What conditions must be met for the wildlife camera to take a picture?

• Only motion sensor is triggered

• Only proximity sensor is triggered

• Either motion or proximity sensor is triggered and it is daylight

• None of the above

Fill in the Blank

A database query design includes the following conditions in the search

criteria.

delivery > 01/05/2019 AND delivery < 31/05/2019

State the part of the processor where these conditions will be evaluated.

Multiple Choice

What are the three components that make up the language of digital systems?

• Binary

• Logic Gates

• Circuits

• Analog Signals

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident