Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unit 2- Lesson 1 & 2- Bytes and File Sizes / Text Compression

Published byMarta Macháčková Modified over 5 years ago

Similar presentations

Presentation on theme: "Unit 2- Lesson 1 & 2- Bytes and File Sizes / Text Compression"— Presentation transcript:

1 Unit 2- Lesson 1 & 2- Bytes and File Sizes / Text Compression
Day 13

2 Getting Started Unit 1 Test Info

3 Bytes and File Sizes

4 Bytes and File Sizes Video- Computer Skills Course: Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes

5 Bytes and File Sizes Lesson 1 Activity- Bytes and File Sizes

6 Text Compression- Lesson 2
Compression is a method or protocol for using fewer bits to represent the original information. Compression can be achieved in a variety of methods including looking for patterns and substituting symbols for the larger patterns of data.

7 Text Compression Lesson- 2 Video- Text Compression Widget
Practice Compressing Text

8 Text Compression Lossless Compression Lossy Compression
Activity- Text Compression

9 Finished Journal End of Next Week Sub Next Week 1 Day…
Next Class Encoding Images

Download ppt "Unit 2- Lesson 1 & 2- Bytes and File Sizes / Text Compression"

Similar presentations

Base 10 Denary Decimal 1 2 3 4 5 6 7 8 9 10 11...

Base 10 Denary Decimal
Reducing File Sizes. File Formats In this lesson, we will be looking at: How do we measure file size? Why are some files bigger than others? Why should.

Reducing File Sizes. File Formats In this lesson, we will be looking at: How do we measure file size? Why are some files bigger than others? Why should.
Bit Depth Bit is on or off, 1 or 0 Byte is a string of 8 bits Kilobyte is 1,024 bytes (over 8000 1’s and 0’s) Megabyte is 1024 kilobytes Gigabyte is 1024.

Bit Depth Bit is on or off, 1 or 0 Byte is a string of 8 bits Kilobyte is 1,024 bytes (over ’s and 0’s) Megabyte is 1024 kilobytes Gigabyte is 1024.
Skills: none Concepts: the amount of information in an image This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

Skills: none Concepts: the amount of information in an image This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Information loss in compression Skills: none IT concepts: lossy and lossless compression This work is licensed under a Creative Commons Attribution-Noncommercial-

Information loss in compression Skills: none IT concepts: lossy and lossless compression This work is licensed under a Creative Commons Attribution-Noncommercial-
Data Representation CS105. Data Representation Types of data: – Numbers – Text – Audio – Images & Graphics – Video.

Data Representation CS105. Data Representation Types of data: – Numbers – Text – Audio – Images & Graphics – Video.
CSC 1040 - Computing with Images1 Image encodings CSC 1040.

CSC Computing with Images1 Image encodings CSC 1040.
Binary Aim: Explain binary and binary units Objective 1: Convert positive denary whole numbers (0-255) into 8-bit binary numbers and vice versa Objective.

Binary Aim: Explain binary and binary units Objective 1: Convert positive denary whole numbers (0-255) into 8-bit binary numbers and vice versa Objective.
Communications Technology 2104 Mercedes Lahey. Bit 1. bit=From a shortening of the words “binary digit” 2. the basic unit of information for computers.

Communications Technology 2104 Mercedes Lahey. Bit 1. bit=From a shortening of the words “binary digit” 2. the basic unit of information for computers.
File Formats COM 366 Web Design & Layout. Native file format –Format native to software program –.psd > PhotoShop default Preserves layers –Use “Save.

File Formats COM 366 Web Design & Layout. Native file format –Format native to software program –.psd > PhotoShop default Preserves layers –Use “Save.
Data and Program Representation

Data and Program Representation
FILE FORMATS & BITS AND BYTES VOCABULARY QUIZ PER-1 ALEX YUAN, SARAH GU, YANBING WANG, HYERIN YOON.

FILE FORMATS & BITS AND BYTES VOCABULARY QUIZ PER-1 ALEX YUAN, SARAH GU, YANBING WANG, HYERIN YOON.
 Computers store all information digitally as 0s and 1s; we refer to this collectively as “data.”  We’re used to dealing with physical objects in reality,

 Computers store all information digitally as 0s and 1s; we refer to this collectively as “data.”  We’re used to dealing with physical objects in reality,
Image formats. Basic terminologies… Pixels: Pixels are the building blocks of every digital image. a pixel is a single point in a graphic image. Resolutions:

Image formats. Basic terminologies… Pixels: Pixels are the building blocks of every digital image. a pixel is a single point in a graphic image. Resolutions:
10 | Graphics COM 366 Web Design & Production. Native file format –Format native to software program –psd > PhotoShop default Preserves layers –Use “Save.

10 | Graphics COM 366 Web Design & Production. Native file format –Format native to software program –psd > PhotoShop default Preserves layers –Use “Save.
Do it now activity Can you work out what the missing symbols are and work out the order they should be in if the table shows smallest to largest KB kilobyte.

Do it now activity Can you work out what the missing symbols are and work out the order they should be in if the table shows smallest to largest KB kilobyte.
Networking for Home and Small Businesses –.  Explain the binary representation of data.

Networking for Home and Small Businesses –.  Explain the binary representation of data.
Using the Sony DSC-P52 Camera Sunday, December 06, 2015.

Using the Sony DSC-P52 Camera Sunday, December 06, 2015.
Computer Programming 12 Mr. Jean February 5 th, 2014.

Computer Programming 12 Mr. Jean February 5 th, 2014.
Computer Math CPS120: Binary Representations. Binary computers have storage units called binary digits or bits: Low Voltage = 0 High Voltage = 1 all bits.

Computer Math CPS120: Binary Representations. Binary computers have storage units called binary digits or bits: Low Voltage = 0 High Voltage = 1 all bits.

Similar presentations

Ads by Google