8.2.9 - Data representation: Binary Digits

What is ASCII?

• ASCII is a coding scheme that represents every character as a sequence of 0s and 1s

• ASCII is a coding scheme used to determine your bandwidth

• ASCII is an 8-bit coding scheme

What is the length of this sequence: "slide"?

• 3 letters long

• 5 letters long

• 6 letters long

How many different characters can be encoded using 7 bits?

• 256 different 7-bit sequences

• 164 different 7-bit sequences

• 128 different 7-bit sequences

How many different characters are there with an 8-bit coding scheme?

• 64 different characters

• 256 different characters

• 128 different characters

How many binary digits does it take to represent the message: Great work!

• 99 bits

• 88 bits

• 77 bits

How many 3-bit numbers can there possibly be?

• 256

• 8

• 16

How many 1-bit sequences can there possibly be?

• 2

• 4

• 6