Unit 3 : Data - Ch12. Binary

How are data such as text, images, and sound represented in computer systems?

• Using the decimal system

• Using the hexadecimal system

• Using the binary system

• Using the octal system

What does a computer see when it looks at an image?

• Colors and shapes

• Millions of 1s and 0s

• Pixels and bytes

• Text and numbers

Why is data compressed in computer systems?

• To increase its size

• To make it easier to store and transmit

• To make it more colorful

• To convert it into text

How can data be kept secure in computer systems?

• By compressing it

• By encrypting it

• By deleting it

• By copying it

What is the base of the binary numeral system?

• 2

• 10

• 8

• 16

Which digits are used in the binary system?

• 0 and 1

• 1 and 2

• 0 and 9

• 1 and 3

In the decimal system, what does each '1' in the number 111 represent from left to right?

• 100, 10, and 1

• 10, 1, and 0.1

• 1, 10, and 100

• 1, 2, and 3

What is one of the learning objectives related to binary arithmetic?

• Understand the concept of overflow

• Learn about hexadecimal notation

• Study the history of binary

• Explore decimal arithmetic

Why is hexadecimal notation used in computing?

• To simplify binary representation

• To replace binary completely

• To make calculations faster

• To avoid using decimal numbers

Why is binary needed to represent data and program instructions in computers?

• Because it is easier for humans to understand

• Because computers work with two states: on and off

• Because it allows for more complex calculations

• Because it is the oldest number system