This system of ten digits is called the decimal number system while the number system that uses only two digits is called _____.

• the hexadecimal number system

• the octal number system

• the binary number system

• the duodecimal number system

Which of the following is the correct binary representation of the number 2?

• 110

• 101

• 10

• 11

The only two digits used in the binary number system are _______.

• one and two

• zero and one

• zero and two

• two and three

Which of the following is the best definition of a bit?

• An electrical signal in a wire

• A physical signal that becomes a digital signal

• A measure of computer graphics and sound

• A single 1 or 0 in a digital signal

How many bits are in a single byte?

• 4

• 8

• 12

• 16

One ____________ is approximately 1,000 bytes.

• terabyte

• gigabyte

• megabyte

• kilobyte

One ____________ is about 1 million bytes.

• terabyte

• gigabyte

• megabyte

• kilobyte

One ____________ is about 1 billion bytes.

• terabyte

• gigabyte

• megabyte

• kilobyte

One ____________ is about 1 trillion bytes.

• terabyte

• gigabyte

• megabyte

• kilobyte

A ___________ Internet connection can transmit more than a billion ones and zeroes every second.

• kilobyte

• megabyte

• gigabyte

• terabyte