Starter : 1 min challenge: Suppose you are going shopping mall City Center / Seef Mall you did some shopping and watch movie over there. Make a list of input devises that all you used or observe there.
Objectives Describe bar code reader Analysing QR code scanner
Introduction
Barcode Reader / Scanner Barcode Used to read information that is stored on product's barcodes . The barcode scanner reads the information stored on the barcode using a visible red light which is reflected and translated into digital information.
Bar Codes
Use of barcode Supermarkets Medical stores warehouses Books(ISBN)
What Information a barcode may have The barcode is present on products and holds information about each product including: Product Id number Manufacturer Country of origin Etc.
Point to be noted The barcode does not store the price of the product . This information is held in a computer database and accessed using the product id.
What will you do if product Prices Changes By storing the price in a database instead of on individual bar codes, it is easier to change (if you had a sale for example). All you would do is change the price in the database instead of having to replace the barcodes on each of the items.
Advantages Disadvantages Rely on undamaged bar codes in order to function. Quite an expensive way to gather information. Bar codes can be swapped Quick and easy to change product prices. Quick and easy way of getting information into a system. Very accurate as there is no manual typing involved. .
Activity Chose the correct box and collect stars Count your stars
Select the square give correct options with respect to barcode 20 Characters Hard to create Can be read with any laser light reader Only black and white Fast and Quick Country of origin Product price Easy to change product price Manufacturer Details about product Product no. Barcode stored data in horizontal direction
Objective 1
Objective 2 Analysing QR code scanner
Story about QR code
Benefits of QR Codes: Easy to create and read. Can be used for anything by anyone. You can store lots of information on a QR code without having to write it down QR code can be scanned from any direction.
Problems with QR Codes and scanners You need a smartphone with a camera and app installed to be able to read them. Lack of familiarity with the QR code among people.
Ready for Activity?
Activity: Quiz https://quizizz.com/admin/quiz/63c0febd752f5c001eb43678/qr-code-quiz?selfCreated=true You Have one ball choose one student pass the ball to that student and he will give the answer and choose another student for the next Question.
tekhnologic A Quick Response B Quick Reply C Quiet Reindeer D Quaint Restroom Q. QR code is an abbreviation of _________________ code. >
tekhnologic A Korea B Japan C India D England Where was it designed first? >
tekhnologic A With a computer B With your eyes C With an app on a smart device D With a special hand-held QR reader. How do you scan QR codes? >
tekhnologic A The aviation industry. B The IT industry. C The fashion industry. D The automobile industry. For what industry were QR codes originally designed for? >
tekhnologic A an image B a website C a music file D all of the options What can QR codes link to? >
tekhnologic What are the benefits of using QR codes? >
tekhnologic Q. Why mostly QR codes are in black and White? >
tekhnologic Q. Describe how people with QR codes are helpful in classroom or education. >
HOT QR code is safe or unsafe justify your answer with real life example.
Plenary: Write the points that you remember From today’ class
Feedback
QR code for Todays’ class PPT and HW Class Presentation Topic for Next day : OCR and OMR To Get Homework Scan me
Homework 1.Search for a website that allows you to create and download QR codes. 2. Create one QR code for yourself. 3. Using suitable app on a smartphone or tablet check if it works. (At least one from above)