Year 8 - Term 1 Quiz

Create a program that it outputs "Hello World":

​ (a)   ​ (b)   ​ (c)   ​ (d)  

• print
• (
• "Hello World"
• )
• +
• ==
• input

If A = 0 and B = 1 what is the output?

• 1

• 0

• 2

The gates to the left are all examples of (a)   gates

Computers exist in many ​ (a)   devices that we use on a day-to-day basis. Digital devices may be input, ​ (b)   or storage devices. On a basic level, they all operate through the use of ​ (c)   gates.

• digital
• output
• logic
• electrostatic
• purple
• inset

Logic gates use ​ (a)   operators.

• Boolean
• Numeric
• Input
• Output

An ​ (a)   gate usually has two inputs. ​ (b)   tells us that both Input A ​ (c)   Input B have to be 1 (or ON) in order for the output to be 1. Otherwise the output is 0.

• AND
• OR
• NOT

An ​ (a)   gate has two inputs. ​ (b)   tells us that EITHER Input A ​ (c)   Input B has to be 1 (or ON) in order for the output to be 1. Otherwise the output is 0.

• OR
• AND
• NOT

A ​ (a)   gate has just one input. ​ (b)   tells us that Input A has to be 0 (or OFF) in order for the output to be 1. Otherwise the output is 0. A ​ (c)   gate is sometimes called an inverter.

• NOT
• AND
• OR

Many electronic circuits have to make ​ (a)   . They look at one or more ​ (b)   and use these to determine the outputs from the circuit. The process of doing this uses electronic ​ (c)   , which is based on digital switches called ​ (d)   .

• decisions
• inputs
• logic
• gates
• bridges
• pizzas
• python

In a logic gate, each combination of input signals can be made to produce a different outcome. ​ (a)   reflect the two states - on and off, ​ (b)   and 1. Logic gate calculations can also be represented as ​ (c)   .

• Binary numbers
• 0
• truth tables
• spreadsheets
• databases
• 2
• hexadecimal numbers
• Hexadecimal numbers
• Denary numbers