Unit 1 Digital Information

Which of these values can be stored in a single bit?

• 1

• 10

• [1, 0]

• 4

Answer explanation

Single bit can contain either 0 or 1

[0, 1] is a list of numbers. A single bit can't contain a list of values.

Which of these values can be stored in a single bit?

• 0

• 2

• [0, 1]

• [2, 4]

Answer explanation

Single bit can contain either 0 or 1

[0, 1] is a list of numbers. A single bit can't contain a list of values.

Convert to decimal: 11010

Answer explanation

Use your Flippy Do

Which 2 indicators on the car dashboard could be represented by a single bit?

Drag in alphabetical order.

First Answer ​ ​ (a)  

Second Answer​ ​ (b)  

• A) "ECON" label (car in economy vs standard mode)
• F) Seat Belt Fastened (True / False)
• B) Gas level (shows how full tank is 0-40)
• C) Temperature in car in Celsius
• D) Speed of car (0-160 mph)
• E) Driving Mode(Park/Reverse/Nuetral/Drive)

Answer explanation

A bit can only contain either a zero (0) or one (1).

So we are looking forward something on the car dash that can only be 2 values:

We need 1 bit for "econ" whether the car in "econ" mode or not (on or off)

We need another bit for whether the seat belt is fastened (true or false)

Anything else requires more bits than just 1 bit

How many bits are in 4 bytes?

• 8 bits

• 24 bits

• 32 bits

• 48 bits

Answer explanation

8 bits is 1 byte

so 4 bytes is 32 bits

4 x 8 = 32

Which of these values can be stored in a single bit?

• 4

• [0, 1, 0]

• 0

• 11

Answer explanation

Single bit can contain either 0 or 1

[0, 1] is a list of numbers. A single bit can't contain a list of values.

Consider image of profile settings.

Which of the settings can be stored in a single bit?

• Username

• Birthdate

• Primary Language

• Sound Effects

Answer explanation

A bit can only contain either a zero (0) or one (1).

So we are looking forward something that can only be 2 values:

We need 1 bit to tell us whether the sound effects is on or off

Anything else requires more bits than just 1 bit

How many different values can 4 bits represent?

Answer explanation

4 bits is 2⁴ different values (the values 0-15)

Answer explanation

You need 1 bit for each setting. "Magnifier" setting is either on or off (which is 1 bit) and the "Auto-Brightness" setting is either on or off (which is the 2nd bit needed).

What values can a binary digit represent?

• A binary digit can represent one of the values from 0 - 9.

• A binary digit can only represent the value 1.

• A binary digit can represent either the value 0 or 1.

• A binary digit can only represent the value 0.