Friday, December 23, 2016

A X'mas challenge for you :)

Dear InfoComm members,

Can you mimick this program using Scratch?


Sent from my iPhone

Tuesday, November 22, 2016

2017Smart Nation Coding and Enrichment Courses/Workshops

From: Stag Match <>

Date: Sat, Nov 12, 2016 at 7:59 PM
Subject: 2017Smart Nation Coding and Enrichment Courses/Workshops
To: Dear Principal , Vice-Principal, HODs and Subjects Heads

Warm greetings and a good day to all of you,

We, Stag Match Private Limited, are pleased to introduce a range of new enrichment and developmental courses/workshops to your esteemed school. 

Stag Match conducts and offers enrichment courses like Robotics, Drone, Ozobot, Moway, Programming, Moral Writing and Design to MOE schools and Community Centres

In these fun and exciting courses, it will not only interest the students to learn and also value-add skills to them.  

The followings are the courses' summary: 



Course Title


Code to flying Pilot with Tickle (Coding and Programming)


Code to flying Pilot with Scratch (Coding and Programming)


Code Moway with Scratch (Coding and Programming)


Flying Pilot Club (Flying Experience)


Hologram Power Point Presentation


Chinese Speech and Drama 


Creative Writing with Moral Value (Finding Goodness)


Green Capsule (Terrarium )

 Attached, please find details of the courses/workshop above for your perusal. 

Recently, Code for Fun Enrichment Programme (jointly organised by IDA and MOE) is introduced and offered to all MOE primary and secondary schools to increase students' exposure to coding and computational thinking. 

Stag Match Private Limited is an education service provider that has experience in providing these courses to MOE School, Peoples' Association and Community Centres all over Singapore.

 We would like to schedule an meeting with you (the Principal) and HODs to give you all more information and details of the preferred courses mentioned above. 

 Kindly let us know when will be the best date for your school. Your advise and kind attention please.

Should you have any enquiries, please feel free to contact us at +65 98450665 or email us at

Thank you

Alex Wong

Stag Match


Stag Match Private Limited

mobile: 98450665


MOE registered and approved Tuition Centre (Certificate No : 3951) 


Stag Match® in partnership with Science Centre for our science modular. We are honoured to be the FIRST Enrichment Centre in Singapore to be partnered with Science Centre  :




Stag Match
 is featured in The Straits Times Newspaper (2 Feb 2015).

Click on the link to view the



Mr Chang CL

Poi Ching School

21 Tampines St. 71 Singapore 529067

Tel: 6785 6420 Fax: 6785 7198


Sunday, November 20, 2016

Dear InfoComm Club members,

Go practise your touch typing during this December school vacation:

Mastering touch typing will do you well in future!  You can type your project reports in a fraction of the time your friends (who do not know touch typing) would take.  This would give you an added advantage to complete your work earlier than your peers!

Furthermore, when you have to type minutes of meeting (aka meeting notes) you could also do it with no sweat!

So go and master your touch typing, and compete with me.  If you can beat my score, I'll give you a little token :)

In any case, have a restful vacation and spend quality time with your family.


Mr Chang

Thursday, November 3, 2016

Sunday, October 23, 2016

What is the difference between http and https ?

What is the difference between http and https ?
Time to know this with 32 lakh debit cards compromised in India.

Many of you may be aware of this difference, but it is
worth sharing for any that are not.....

The main difference between http:// and https:// is all
about keeping you secure

HTTP stands for Hyper Text Transfer Protocol
The S (big surprise) stands for "Secure".. If you visit a
Website or web page, and look at the address in the web browser, it is likely begin with the following: http:///.

This means that the website is talking to your browser using
the regular unsecured language. In other words, it is possible for someone to "eavesdrop" on your computer's conversation with the Website. If you fill out a form on the website, someone might see the information you send to that site.

This is why you never ever enter your credit card number in an
Http website! But if the web address begins with https://, that
means your computer is talking to the website in a
Secure code that no one can eavesdrop on.
You understand why this is so important, right?

If a website ever asks you to enter your Credit/Debit card
Information, you should automatically look to see if the web
address begins with https://.

If it doesn't, You should NEVER enter sensitive
Information....such as a credit/debit card number.

PASS IT ON (You may save someone a lot of grief).

Sent from my iPhone

Sunday, October 16, 2016

Infocomm Media Youth Festival 2016

Below taken verbatim from:

Infocomm Media Youth Festival 2016

Come to the Infocomm Media (ICM) Youth Festival and immerse yourself in youth-centric experiential zones of all things tech and media.
ICM keyart large
Event Start Date
Event End Date
Event Venue
Suntec Convention Hall 401-402 (Main Hall) & Meeting Room 331 (Career Talk)


  • Over 40 free workshops on coding (e.g. Apple Swift Playground, robotics, virtual reality, 360◦ video creation and more (pre-registration is required)
  • Experience being a newscaster, radio DJ, software developer, data analyst or cyber security specialist
  • Immersive experience through the power of augmented & virtual Reality
  • Create life-size 3D paintings with Google Tilt Brush
  • Come and see young coders programme their troops for battle during ’Ace of Coders’
  • Meet and greet sessions with MediaCorp celebrities and YouTubers Night Owl Cinematics
  • Get served by robots in the Smart Café

Above taken verbatim from:

Thursday, September 29, 2016

Fwd: FW: Invitation to Participate in World Robot Games 2017 Singapore & International WRG 2017 - Please forward to relevant Teachers-in-charge

Hi Suryana and Erin!

Do help me publish this to the kids at the next CCA session.

---------- Forwarded message ----------
From: Andrew MAH (SCHOOLS) <>
Date: Thu, Sep 29, 2016 at 8:50 AM
Subject: FW: Invitation to Participate in World Robot Games 2017 Singapore & International WRG 2017 - Please forward to relevant Teachers-in-charge
To: Cheng Liang Chang <>
Cc: Jimmy Seah Han Meng <>, 熊慧莲 <>



From: PCS Contact []
Sent: Thursday, 29 September, 2016 07:52 AM
To: Andrew MAH (SCHOOLS) <>
Subject: Fwd: Invitation to Participate in World Robot Games 2017 Singapore & International WRG 2017 - Please forward to relevant Teachers-in-charge



---------- Forwarded message ----------
From: Conrad Sng <>
Date: Wed, Sep 28, 2016 at 10:45 PM
Subject: Invitation to Participate in World Robot Games 2017 Singapore & International WRG 2017 - Please forward to relevant Teachers-in-charge

Dear School,

We are proud to invite your esteemed school to participate in our annual
World Robot Games Singapore 2017 which will be held in June 2017.

Introduction to World Robot Games

The World Robot Games is an International Robotics Games Event which takes
place at different country locations annually. Every year, there will be a
different theme which focuses on implementing robotic technologies in real
life to improve the lives of mankind. Participants, Observers, Teachers,
Coaches, Parents gather together in this 2 day event to compete, exchange
knowledge, learn and interact with each other with one common goal in
mind, that is to make our world a better and safer place for everyone with
the help of robotics.

The World Robot Games promotes great opportunities for technological
creativity as participants are not restricted to their usage of parts for
the robots. Each of the games are designed to focus on a certain area of
robotics & education.

In addition, The World Robot Games is the first of its kind to have family
based robot games where families team up and compete with each other, in
the effort of encouraging teamwork, bonding and cohesiveness within the

The World Robot games 2015 had close to 200 international participants and
in 2016 we had close to 350 participants. We are expecting many more for

About World Robot Games ( International ) ( )
The next International World Robot Games 2017 will be held in Singapore
and we expect close to 500 international participants coming from
Thailand, Philippines, Indonesia, Vietnam, China, Malaysia and more.. The
Theme for World Robot Games 2017 is ROBOTS IN DEFENSE & SECURITY. Teams
are challenged not only against each other in our games but also to
innovate and create robots to assist in our global defense & security
against terrorism.

World Robot Games Singapore 2017 ( )

The World Robot Games Singapore 2017 will be held in June 2017. We have 4
Different games, which includes, BATTLEBALLZ, SUMOBOT, LINE TRACING, and
SEARCH & RESCUE, and its open to everyone to participate. Winning Teams of
 World Robot Games ( Singapore OPEN ) will get to represent Singapore to
compete in the prestigous World Robot Games ( International ) in November

- SUMO ROBOT competition  ( Autonomous and Remote Control , focuses on
programming, mechanical and electronic skills )

- Line Tracing competition ( Non programmable , entry level robotics,
focuses on mechanical and electronic skills )

- Search & Rescue Robot ( Remote Control, focuses on situation analysis,
mechanical design and fabrication, electronics, etc.. )

- Battle-Ballz ( Remote Control, focuses on strategic planning, mechanical
and electronic skills )

We do look forward to your esteemed school's participation. Please do not
hesitate to contact us for more information and we would be glad to meet
up to further explain about WRG2017 and WRG2017 Singapore

Much Thanks for your time,


WRG Singapore Representative

KC Ang
WRG Singapore Partner




Mr Chang CL

Poi Ching School

21 Tampines St. 71 Singapore 529067

Tel: 6785 6420 Fax: 6785 7198


Wednesday, August 17, 2016

Tuesday, August 16, 2016

Fwd: Open for Registration - Minecraft Hackathon (Workshop and Competition)

Hi Suryana and Erin,

Let's see if we want the kids to go for this :)

---------- Forwarded message ----------
From: Eric CHEW (IDA) <>
Date: Tuesday, August 16, 2016
Subject: Open for Registration - Minecraft Hackathon (Workshop and Competition)
To: "Eric CHEW (IDA)" <>


Eric CHEW (Mr)

Manager | Human Capital Development | Infocomm Development Authority of Singapore (IDA)
D: 6211 0546 | E: | W:

10 Pasir Panjang Road, #10-01, Mapletree Business City, Singapore 117438


  Follow us on:     Subscribe to:

NOTICE: This e-mail (including any attachments) may contain confidential or legally privileged information. Any unauthorised use, retention, reproduction or disclosure is prohibited and may attract civil and criminal penalties. If this e-mail has been sent to you in error, please delete it and notify us immediately. Please consider the environment before you print this email.



Mr Chang CL

Poi Ching School

21 Tampines St. 71 Singapore 529067

Tel: 6785 6420 Fax: 6785 7198


Tuesday, August 9, 2016

Sunday, August 7, 2016

How big is your storage

Processor or Virtual Storage

· 1 Bit = Binary Digit
· 8 Bits = 1 Byte
· 1024 Bytes = 1 Kilobyte 
· 1024 Kilobytes = 1 Megabyte 
· 1024 Megabytes = 1 Gigabyte 
· 1024 Gigabytes = 1 Terabyte 
· 1024 Terabytes = 1 Petabyte 
· 1024 Petabytes = 1 Exabyte
· 1024 Exabytes = 1 Zettabyte 
· 1024 Zettabytes = 1 Yottabyte 
· 1024 Yottabytes = 1 Brontobyte
· 1024 Brontobytes = 1 Geopbyte 

Disk Storage

· 1 Bit = Binary Digit
· 8 Bits = 1 Byte
· 1000 Bytes = 1 Kilobyte 
· 1000 Kilobytes = 1 Megabyte 
· 1000 Megabytes = 1 Gigabyte 
· 1000 Gigabytes = 1 Terabyte 
· 1000 Terabytes = 1 Petabyte 
· 1000 Petabytes = 1 Exabyte
· 1000 Exabytes = 1 Zettabyte 
· 1000 Zettabytes = 1 Yottabyte 
· 1000 Yottabytes = 1 Brontobyte
· 1000 Brontobytes = 1 Geopbyte

Megabytes, Gigabytes, Terabytes - What Are They?

Megabytes, Gigabytes, Terabytes - What Are They?

Megabytes, Gigabytes, Terabytes... What Are They?

Save up to $50 on Acronis True Image Backup Software

These terms are usually used in the world of computing to describe disk space, or data storage space, and system memory. For instance, just a few years ago we were describing hard drive space using the term Megabytes. Today, Gigabytes is the most common term being used to describe the size of a hard drive. In the not so distant future, Terabyte will be a common term. But what are they? This is where it gets quite confusing because there are at least three accepted definitions of each term.

According to the IBM Dictionary of computing, when used to describe disk storage capacity, a megabyte is 1,000,000 bytes in decimal notation. But when the term megabyte is used for real and virtual storage, and channel volume, 2 to the 20th power or 1,048,576 bytes is the appropriate notation. According to the Microsoft Press Computer Dictionary, a megabyte means either 1,000,000 bytes or 1,048,576 bytes. According to Eric S. Raymond in The New Hacker's Dictionary, a megabyte is always 1,048,576 bytes on the argument that bytes should naturally be computed in powers of two. So which definition do most people conform to?

When referring to a megabyte for disk storage, the hard drive manufacturers use the standard that a megabyte is 1,000,000 bytes. This means that when you buy an 250 Gigabyte Hard drive you will get a total of 250,000,000,000 bytes of available storage. This is where it gets confusing because Windows uses the 1,048,576 byte rule so when you look at the Windows drive properties a 250 Gigabyte drive will only yield 232 Gigabytes of available storage space, a 750GB drive only shows 698GB and a One Terabyte hard drive will report a capacity of 931 Gigabytes. Anybody confused yet? With three accepted definitions, there will always be some confusion so I will try to simplify the definitions a little.

The 1000 can be replaced with 1024 and still be correct using the other acceptable standards. Both of these standards are correct depending on what type of storage you are referring.

Processor or Virtual Storage

· 1 Bit = Binary Digit
· 8 Bits = 1 Byte
· 1024 Bytes = 1 Kilobyte
· 1024 Kilobytes = 1 Megabyte
· 1024 Megabytes = 1 Gigabyte
· 1024 Gigabytes = 1 Terabyte
· 1024 Terabytes = 1 Petabyte
· 1024 Petabytes = 1 Exabyte
· 1024 Exabytes = 1 Zettabyte
· 1024 Zettabytes = 1 Yottabyte
· 1024 Yottabytes = 1 Brontobyte
· 1024 Brontobytes = 1 Geopbyte

Disk Storage

· 1 Bit = Binary Digit
· 8 Bits = 1 Byte
· 1000 Bytes = 1 Kilobyte
· 1000 Kilobytes = 1 Megabyte
· 1000 Megabytes = 1 Gigabyte
· 1000 Gigabytes = 1 Terabyte
· 1000 Terabytes = 1 Petabyte
· 1000 Petabytes = 1 Exabyte
· 1000 Exabytes = 1 Zettabyte
· 1000 Zettabytes = 1 Yottabyte
· 1000 Yottabytes = 1 Brontobyte
· 1000 Brontobytes = 1 Geopbyte

This is based on the IBM Dictionary of computing method to describe disk storage - the simplest.

Now let's go into a little more detail.


A Bit is the smallest unit of data that a computer uses. It can be used to represent two states of information, such as Yes or No.


A Byte is equal to 8 Bits. A Byte can represent 256 states of information, for example, numbers or a combination of numbers and letters. 1 Byte could be equal to one character. 10 Bytes could be equal to a word. 100 Bytes would equal an average sentence.


A Kilobyte is approximately 1,000 Bytes, actually 1,024 Bytes depending on which definition is used. 1 Kilobyte would be equal to this paragraph you are reading, whereas 100 Kilobytes would equal an entire page.


A Megabyte is approximately 1,000 Kilobytes. In the early days of computing, a Megabyte was considered to be a large amount of data. These days with a 500 Gigabyte hard drive on a computer being common, a Megabyte doesn't seem like much anymore. One of those old 3-1/2 inch floppy disks can hold 1.44 Megabytes or the equivalent of a small book. 100 Megabytes might hold a couple volumes of Encyclopedias. 600 Megabytes is about the amount of data that will fit on a CD-ROM disk.


A Gigabyte is approximately 1,000 Megabytes. A Gigabyte is still a very common term used these days when referring to disk space or drive storage. 1 Gigabyte of data is almost twice the amount of data that a CD-ROM can hold. But it's about one thousand times the capacity of a 3-1/2 floppy disk. 1 Gigabyte could hold the contents of about 10 yards of books on a shelf. 100 Gigabytes could hold the entire library floor of academic journals.


A Terabyte is approximately one trillion bytes, or 1,000 Gigabytes. There was a time that I never thought I would see a 1 Terabyte hard drive, now one and two terabyte drives are the normal specs for many new computers. To put it in some perspective, a Terabyte could hold about 3.6 million 300 Kilobyte images or maybe about 300 hours of good quality video. A Terabyte could hold 1,000 copies of the Encyclopedia Britannica. Ten Terabytes could hold the printed collection of the Library of Congress. That's a lot of data.


A Petabyte is approximately 1,000 Terabytes or one million Gigabytes. It's hard to visualize what a Petabyte could hold. 1 Petabyte could hold approximately 20 million 4-door filing cabinets full of text. It could hold 500 billion pages of standard printed text. It would take about 500 million floppy disks to store the same amount of data.


An Exabyte is approximately 1,000 Petabytes. Another way to look at it is that an Exabyte is approximately one quintillion bytes or one billion Gigabytes. There is not much to compare an Exabyte to. It has been said that 5 Exabytes would be equal to all of the words ever spoken by mankind.


A Zettabyte is approximately 1,000 Exabytes. There is nothing to compare a Zettabyte to but to say that it would take a whole lot of ones and zeroes to fill it up.


A Yottabyte is approximately 1,000 Zettabytes. It would take approximately 11 trillion years to download a Yottabyte file from the Internet using high-power broadband. You can compare it to the World Wide Web as the entire Internet almost takes up about a Yottabyte.


A Brontobyte is (you guessed it) approximately 1,000 Yottabytes. The only thing there is to say about a Brontobyte is that it is a 1 followed by 27 zeroes!


A Geopbyte is about 1000 Brontobytes! Not sure why this term was created. I'm doubting that anyone alive today will ever see a Geopbyte hard drive. One way of looking at a geopbyte is 15267 6504600 2283229 4012496 7031205 376 bytes!

Now you should have a good understanding of megabytes, gigabytes, terabytes and everything in between. Now if we can just figure out what a WhatsAByte is......:)

If you find this information useful, you can have it in the palm of your hand along with a byte converter. Check out our Byte Converter App here.

We have a very handy free byte converter tool that you can use to convert Bytes to Megabytes to Kilobytes to Gigabytes, and Vice Versa. We also have a data storage converter that will convert any data unit from a bit through an Exabyte. Check out the new converter here.

There have been some recent inquiries about the differences between the 3G and 4G technologies relating to how many Gigabytes faster is 4G.  Well I instantly realized the confusion.  There is a big difference between Gigabytes and the Gigabit per second that the 4G claims to be capable of.  However, the question sparked my interest and in my ever-increasing thirst for knowledge, What's a G was created.  3G, 4G, 4g LTE and WiMAX explained. 

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Computer-mediated reality - Wikipedia, the free encyclopedia

Computer-mediated reality - Wikipedia, the free encyclopedia

Computer-mediated reality

Art installation illustrating the mediated reality concept. First we display what's really there, and then this allows a computer to be inserted into the "reality stream" to modify it.
Mediated Reality application running on Apple iPhone

Computer-mediated reality refers to the ability to add to, subtract information from, or otherwise manipulate one's perception of reality through the use of a wearable computer or hand-held device such as a smartphone.

Typically, it is the user's visual perception of the environment that is mediated. This is done through the use of some kind of electronic device, such as an EyeTap device or smart phone, which can act as a visual filter between the real world and what the user perceives.

Computer-mediated reality has been used to enhance visual perception as an aid to the visually impaired. This example achieves a mediated reality by altering a video input stream light that would have normally reached the user's eyes, and computationally altering it to filter it into a more useful form.

It has also been used for interactive computer interfaces.

The use of computer-mediated reality to diminish perception, by the removal or masking of visual data, has been used for architectural applications, and is an area of ongoing research.

The long-term effects of altering perceived reality have not been thoroughly studied, and negative side effects of long-term exposure might be possible.

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Augmented reality - Wikipedia, the free encyclopedia

Augmented reality - Wikipedia, the free encyclopedia

Augmented reality - Wikipedia, the free encyclopedia

Augmented reality (AR) is a live direct or indirect view of a physical, real-world environment whose elements are augmented (or supplemented) by computer-generated sensory input such as sound, video, graphics or GPS data. It is related to a more general concept called mediated reality, in which a view of reality is modified (possibly even diminished rather than augmented) by a computer. As a result, the technology functions by enhancing one's current perception of reality. By contrast, virtual reality replaces the real world with a simulated one. Augmentation is conventionally in real-time and in semantic context with environmental elements, such as sports scores on TV during a match. With the help of advanced AR technology (e.g. adding computer vision and object recognition) the information about the surrounding real world of the user becomes interactive and digitally manipulable. Information about the environment and its objects is overlaid on the real world. This information can be virtual or real, e.g. seeing other real sensed or measured information such as electromagnetic radio waves overlaid in exact alignment with where they actually are in space.

Sent from my iPhone

Wednesday, August 3, 2016

Good News! PCS came in top in KID's Hackthon 2016

Our PCS Team 1 clinched the top prize at IDA Kids' Hackathon 2016!.  The event was held at Suntec City Convention Centre on Saturday 21 May 2016.  They were the only team who had managed to complete all the assigned tasks, and in record time, scoring a perfect score of 150/150.

Attached is a shot taken of the kids who had done us proud.
From left to right, they are Zachary Ng (5F), Moses Kong Hao Sheng (5C), Charlotte Ho (5F) and Naomi Ling En Yi (5F)


Mr Chang CL

Poi Ching School
21 Tampines St. 71 Singapore 529067
Tel: 6785 6420 Fax: 6785 7198