Storing digital data (binary

The nature of technology

Storing digital data

Throughout history, humans have found creative ways to store information:

1. Ancient cave paintings and hieroglyphics

2. Scrolls and parchments

3. Printed books

4. Vinyl records, tapes, and CDs

5. Modern computers and digital devices

Storing data

1. Digital data is information stored using only two digits: 0 and 1

2. Computers use these binary digits to represent all types of data

3. This system is called binary code

4. All files on a computer (text, images, video, audio) are made up of 0s and 1s

What is Digital Data?

What Does a Computer Use Digital Data For?

1. Yes/No or True/False values

2. Numbers

3. Instructions for the computer

4. Text, images, and sounds

5. Video and animations

Multiple Select

A computer uses digital data for storing..

• decimal values (0-9)
• binary values (0s and 1s)
• instructions

• none of the above

Computers use the binary system (base 2)

Binary: 0, 1

Binary System

We use the decimal system (base 10) in everyday life

Decimal: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Decimal System

Introduction to Binary Numbers

Examples:

Storing Text Using Binary

Each letter is assigned a unique binary code.

ASCII (American Standard Code for Information Interchange) is a common encoding system.

Examples:

1st ACTIVITY

PG.8

Fill in the Blanks

Storing Instructions

open your book Activity page 8.

Open Ended

Write your answer here 2nd activity page 8.

Why do computers use digital data?

microprocessor

It is a digital device that only understands 2 positions.
ON
OFF

TEST
PG.9

Open Ended

Type your test pg.9 answers here.