Bits and bytes explained in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert 8 bits into 1 byte.

Intro to Computing

byte = [1] bits

Drag options to blanks, or click blank then click option'

A1

B4

C16

D8

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing bits with bytes and using 4 or 16 instead of 8.

Using 1 bit as a byte.

One byte is made up of exactly 8 bits, like 8 small pieces forming a block.

2fill in blank

medium

Complete the code to calculate how many bits are in 3 bytes.

Intro to Computing

bits = 3 [1] 8

Drag options to blanks, or click blank then click option'

A+

B*

C-

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition instead of multiplication.

Dividing or subtracting which does not give correct total bits.

Each byte has 8 bits, so multiply 3 by 8 to get total bits.

3fill in blank

hard

Fix the error in the code to convert bits to bytes correctly.

Intro to Computing

bytes = bits [1] 8

Drag options to blanks, or click blank then click option'

A/

B*

C+

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Multiplying bits by 8 instead of dividing.

Adding or subtracting which does not convert correctly.

To convert bits to bytes, divide the number of bits by 8.

4fill in blank

hard

Fill both blanks to create a dictionary mapping bytes to bits for 1 to 4 bytes.

Intro to Computing

bytes_to_bits = {x: x [1] 8 for x in range(1, 5) if x [2] 4}

Drag options to blanks, or click blank then click option'

A*

B<=

C>

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition instead of multiplication.

Using wrong comparison operators like '>' instead of '<='.

Multiply x by 8 to get bits from bytes, and include bytes less than or equal to 4.

5fill in blank

hard

Fill all three blanks to create a dictionary of bytes to bits for 1 to 5 bytes, only if bits are greater than 16.

Intro to Computing

bytes_to_bits = { [1]: [2] for [3] in range(1, 6) if [2] > 16 }

Drag options to blanks, or click blank then click option'

Ab

Bb * 8

Dx

Attempts:

3 left

💡 Hint

Common Mistakes

Using inconsistent variable names.

Not multiplying bytes by 8 to get bits.

Incorrect condition for filtering bits.

Use variable 'b' for bytes, multiply by 8 for bits, and iterate with 'b' in range.