Storage Space and Binary (PRACITCE 2)

A light bulb can be set to three positions.

• TRUE

• FALSE

Answer explanation

A light bulb can only be in two positions: on or off

Zero represents the state when the device is on.

• TRUE

• FALSE

Answer explanation

Zero represents the state when the device is off

The binary number system is used by computers to represent data

• TRUE

• FALSE

Answer explanation

The binary number system is used by computers to represent data.

Every character on a keyboard is represented by the same pattern of ones and zeros.

• TRUE

• FALSE

Answer explanation

Every character on a keyboard is represented by a unique pattern of ones and zeros.

If you are typing an ​ (a)   to a friend, when the uppercase letter ‘Z’ on the ​ (b)   is pressed, it sends an ​ (c)   signal to the ​ (d)   , which is converted to the ​ (e)   code ‘0101 1010’.

• email
• keyboard
• electrical
• computer
• binary

What is the binary number system?

The binary number system is a way of representing data using only ​ (a)   digits : ​ (b)   and ​ 0 . Each digit is called a (c)   , and it represents whether a state is "​ (d)   " (1) or "​ (e)   " (0).

• bit
• two
• 1
• on
• off

Why is the binary number system used to represent data in a computer?

The binary number system is used because computers are built with ​ (a)   that operate in ​ two states: ​ (b)   .

Binary simplifies processing since computers can easily recognize these two states as 1 (​ (c)   ) and 0 (​ (d)   ). It allows efficient and reliable ​ (e)   and computation.

• electronic circuits
• on and off
• on
• off
• data storage