MIT Massachusetts Institute of Technology

The Mailman and the Five Packages: Data Packets and Data Transfer Speed

Hanan Al Arfaj
IT Supervisor in the Supervision Administration
Ministry of Education – Eastern Province
Kingdom of Saudi Arabia

*This video was sponsored by
Saudi Aramco and produced
by Sultan Bin Abdel Aziz
Science & Technology Center

This lesson will explain the process of data transfer throughout computer systems and the form the data gets transferred into. Additionally, we will touch on some factors that alter the transfer speed. We will use simple analogies and examples to explain complicated concepts.  We will present a situation where a mailman has five packages to deliver and he is constrained by time to deliver them. We will also include an analogy that includes running with a folder through the hallways of a school to deliver it to a certain office by using a relay system with different students taking turns at the task. Those two examples and their solutions will help the students understand the basics of data transfer and the factors affecting the speed at which that happens.  Students will learn to calculate the time it takes to transfer folders and files after knowing their respective sizes. Prerequisites for this lesson include some knowledge of the concept of digital data and an understanding of file size units (Bits, Bytes, Kilobytes, etc).  Materials needed include: 5 Cardboard boxes in different sizes; Stickers; a series of books; and 3 bags.

Ms. Al Arfaj has a B.S. degree in Computer & information Sciences from King Saud University.  In 2006, she obtained the first award for the distinguished performance at the level of Educational Administration in the Eastern Provinces of Saudi Arabia. Her major skills are in the areas of Systems Analysis & Programming, and she enjoys designing and preparing educational training courses in the ICT field.

This site, sponsored by Intel, is entitled “The Journey Inside: A Fascinating Look Inside the World of Computers” and provides a collection of 35 interactive, online lessons for students to learn about technology, computers, and society.
http://educate.intel.com/en/thejourneyinside/

This URL presents a video on “How the Internet Works” created by Data Centers Canada.
http://www.youtube.com/watch?v=i5oe63pOhLI

This page, provided by “How Stuff Works”, presents a discussion on how the Internet works.
http://computer.howstuffworks.com/internet/basics/internet.htm

This page, sponsored by “How Stuff Works”, presents a discussion on how IP convergence works.
http://communication.howstuffworks.com/convergence/ip-convergence2.htm

Smart & Exiciting Thank You

Anonymous
September 26, 2012 at 2:31 am

Smart & Exiciting
Thank You Mrs. Hanan
IT Teacher

الله يوفقك استاذة حنان عمل

Anonymous
May 16, 2012 at 9:01 am

الله يوفقك استاذة حنان

عمل كبير و خلاق

معلمة الحاسب:
بنان القرني

Very exciting Thank you for

Anonymous
April 23, 2012 at 5:03 am

Very exciting
Thank you for producing this kind of activity for this concept.

Kamal Mansoor
IT teacher

Hi It's a beautiful and

Anonymous
February 4, 2012 at 12:10 pm

Hi
It's a beautiful and useful way to communicate information to learners in a fun way

Thank you and waiting for more as soon as possible

Ms.lamiaa Al shabibi
Professional development expert at tha ministry of education . KSA

We hope to have subtitling

emurray
December 25, 2011 at 7:50 pm

We hope to have subtitling for this soon!

Please Translate This Lesson

Anonymous
December 25, 2011 at 5:13 am

Please Translate This Lesson to English .

Very Good Job. I Like This

Anonymous
December 16, 2011 at 2:22 pm

Very Good Job.
I Like This way for Explaining the Concept of Data Rate & Data Packets

Manal Hassan
IT teacher

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This Lesson is in the following clusters: Computer Programming, Graph Theory

Smart & Exiciting Thank You

Anonymous
September 26, 2012 at 2:31 am

Smart & Exiciting
Thank You Mrs. Hanan
IT Teacher

الله يوفقك استاذة حنان عمل

Anonymous
May 16, 2012 at 9:01 am

الله يوفقك استاذة حنان

عمل كبير و خلاق

معلمة الحاسب:
بنان القرني

Very exciting Thank you for

Anonymous
April 23, 2012 at 5:03 am

Very exciting
Thank you for producing this kind of activity for this concept.

Kamal Mansoor
IT teacher

Hi It's a beautiful and

Anonymous
February 4, 2012 at 12:10 pm

Hi
It's a beautiful and useful way to communicate information to learners in a fun way

Thank you and waiting for more as soon as possible

Ms.lamiaa Al shabibi
Professional development expert at tha ministry of education . KSA

We hope to have subtitling

emurray
December 25, 2011 at 7:50 pm

We hope to have subtitling for this soon!

Please Translate This Lesson

Anonymous
December 25, 2011 at 5:13 am

Please Translate This Lesson to English .

Very Good Job. I Like This

Anonymous
December 16, 2011 at 2:22 pm

Very Good Job.
I Like This way for Explaining the Concept of Data Rate & Data Packets

Manal Hassan
IT teacher