Year 8
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Lesson details
Key learning points
- In this lesson, we will grasp what binary digits are by associating them with familiar sets of symbols such as letters and decimal digits. We will solve simple problems that reinforce the connection between (alphanumeric) information and its binary representation.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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7 Questions
Q1.
What is ASCII?
ASCII is a coding scheme used to determine your bandwidth
ASCII is an 8-bit coding scheme
Q2.
What is the length of this sequence: "slide"?
3 letters long
6 letters long
Q3.
How many different characters can be encoded using 7 bits?
164 different 7-bit sequences
256 different 7-bit sequences
Q4.
How many different character are there with an 8-bit coding scheme?
128 different characters
64 different characters
Q5.
How many binary digits does it take to represent the message: Great work!
88 bits
99 bits
Q6.
How many 3-bit numbers can there possibly be?
16
256
Q7.
How many 1-bit sequences can there possibly be?
4
6