Wi-Fi Technology by Muhammad Yousuf Ali

In the Internet world Wi-Fi Technology become the important part of our lives without Wi-Fi life is feel incomplete. According to recent report 5.30 billion people around the world were using the internet which is equivalent to 65.7 percent of the world’s total population. This small article try to explore the Answer of following questions.

What is Wi-Fi Technology?

What is difference between Wi-Fi and Internet?

What are the 3 types of Wi-Fi?

What are Advantages and Disadvantages of Wi-Fi?

What is Wi-Fi Technology?

Wi-Fi is a wireless networking technology that uses radio waves to provide wireless high-speed Internet access. A common misconception is that the term Wi-Fi is short for “wireless fidelity,” however Wi-Fi is a trademarked phrase that refers to IEEE 802.11x standards.

What is difference between Wi-Fi and Internet?

Wi-Fi connects devices within a limited range, such as a home, office, or public place like a coffee shop or library. The internet, on the other hand, connects devices around the world through a network of servers, routers, and other infrastructure.

What are the 3 types of Wi-Fi?

There are a types of wireless networks: 

Personal-Area Network (PAN),

Metropolitan-Area Network (MAN),

Wide-area network (WAN)

What are advantages of Wi-Fi?

Easy to install

A Wi-Fi network is inexpensive, easy to install, expandable, offers low latency (better than LMR), and excellent data rates.

More Connectivity

A wide variety of devices can be made WiFi capable to connect to each other or to the Internet.

Connect many Devices.

Many devices such as smartphones and as well as Laptop, desktop and tablate  have WiFi already installed as standard.

What are disadvantages of Wi-Fi?

Security

Wireless networks are considered more vulnerable to hacker attacks.

Coverage

Wireless coverage areas have a limited range of connectivity (often from 50-300 ft).

Transmission Speed

The transmission of data is usually slower than most Cable/wired networks.

How to Cite This Article

M.Y. Ali (2023). Wifi Technology. https://profileusuf.wordpress.com/2023/11/18/wi-fi-technology/

Fake News Purpose: Sources where Fake News created and disseminated

by Muhammad Yousuf Ali

In the age of social media and different challenges of sharing the information on internet. It is very easy to share the fake new/information to audience. This article provide you a brief introduction what is fake news what are the different purpose of the fake news and source and platform where the Fake News created and disseminated.

Q No. 1 What is Fake News?

Q No. 2 What are the purpose of Fake news?

Q No. 3  Which sources fake news are created?

Q 1. What is a Fake News?

The term does not have a fixed definition, the most suitable definition

“Fake news is false or misleading information presented as news. Fake news has also been called junk news false news, hoax news alternative facts and pseudo-news.”

Q No. 2  What are the purpose of Fake news ?

There are following purpose or motive of Fake News

Reputation

Fake news often has the aim of damaging the reputation of a person, family, Organization or group of companies.

Making Money

 Another purpose of fake news making money through advertising revenue

Audience Retention

Another purpose of the Fake news to audience retention for fame helpful to increase the viewership.

Political Polarization

Fake news also spread for the political point scoring and some time it is also use for the political polarization.

Q No. 3 Which sources fake news are created?

There are different sources where fake news are created and spread.  However, social media and Fake Websites.

1. Social Media

In different medium of social media fake news are created.

a. Facebook

Facebook feeds/posts and troll are very common medium were fakenews created and spread through share and

b. Twitter

Twitter is an other social media where fake news created through tweet and spread through re-tweet.

c. Whats’ App

What’s App message is also main source to spread the fake news through sharing and forwarded with friends.

d. Instagram

 Instagram is also medium where tempered video and movies are share and forward.

2. Fake Websites

Fake websites are also source of the fake news where fake and un-verified information posted.

How to Cite This article

M.Y Ali (2023). Fake News Purpose: Sources where Fake News created and disseminated. https://profileusuf.wordpress.com/?p=1697

How to Create free online QR Code

This article is about the Quick Response QR Code, in this article I discuss Three important point about the QR Code which is mentioned Below:-

1. What is QR Code?
2. What are the top 10-Websites where you can generate/create free QR codes?
3. How to Create free online QR Code?

1. What is QR Code?

QR Code/QR code i.e. Quick Response, Matrix bar code. It is also known as 2d codes, 2d barcodes, or mobile codes. The QR code typically appears as a small white square with black geometric shapes, though colored QR codes are also now being used. The information hold by QR codes is a QR code can be a URL, a phone number, an SMS message, a V-card or any text. Quick Response are referred as QR because they allow the contents to be decoded at high speed.

2. What are the best website for free online QR Code generation?

The top 10 websites for free online QR Code generation

1. https://goqr.me/

2. https://www.qrcode-tiger.com/

3. https://www.qr-code-generator.com/

4. https://qrcode.tec-it.com/en

5. https://www.qrstuff.com/

6. https://me-qr.com/

7. https://4qrcode.com/

8. https://mention.com/en/qr-code-generator/

9. https://www.waspbarcode.com/barcode-maker

10. https://freetools.textmagic.com/qr-code-generator

Besides there are a number of website for free online QR code generation on internet. In some websites users needs sign up to generate QR Code.

Q 3 How to Create free online QR codes?

There are different website where you can create online free QR Codes for examples steps lets move to the tutorial from websits (https://www.qr-code-generator.com/) and watch mentioned below

I hope reader understood What is QR Code? How to create free QR codes. Please thumb up if you like and comment about this article.

How to Cite this Article:-

M.Y. Ali, (01 June 2022). How to create free online QR code, https://profileusuf.wordpress.com/2022/06/01/how-to-create-free-online-qr-code/

Quick Responses QR Code: Usage and Applications

This small piece of writing about the QR Code introduction: Usage and Applications of QR Code. QR is one of the advance format of Bar code but it is different from Bar code. QR Code is a machine-readable code consisting of an array of black and white squares, typically used for storing URLs or other information for reading by the camera on a smartphone.

Q 1 What is QR Code?

QR Code/QR code i.e. Quick Response, Matrix bar code. It is salso known as 2d codes, 2d barcodes, or mobile codes. The QR code typically appears as a small white square with black geometric shapes, though colored QR codes are also now being used. The information hold by QR codes is a QR code can be a URL, a phone number, an SMS message, a V-card or any text. Quick Resposnse are referred as QR because they allow the contents to be decoded at high speed. QR code has huge potiental and its application in the field of Information and Communication Technology (ICT), Mobile Technology, Ware House, Banking sector and online banking Transcation, Library and Information science to access the online material and e-content.

Q 2 What are the main usage of QR Code?

Augmented reality

Displaying multimedia contents

Mobile operating systems

Virtual stores

QR code payment

Website login

Joining a Wi‑Fi network

Electronic authentication

1. Augmented reality

QR codes are used in some augmented reality systems to determine the positions of objects in 3-dimensional space.

2. Displaying multimedia contents

Multimedia QR codes are also used to direct users to specific multimedia contents (such as video, audio, images, documents, etc.).

3. Mobile operating systems

QR codes can be used on various mobile device operating systems. iPhones running on iOS 11 and higher (Hein, 2017) and some Android devices can natively scan QR codes without downloading an external app.The camera app is able to scan and display the kind of QR code (only on iPhone) along with the link (both on Android and iPhone). These devices support URL redirection, which allows QR codes to send metadata to existing applications on the device. Many paid or free apps are available with the ability to scan the codes and hard-link to an external URL.

4. Virtual stores

QR codes have been used to establish “virtual stores”, where a gallery of product information and QR codes is presented to the customer, e.g. on a train station wall (Chen, 2019). Walmart, Procter & Gamble and Woolworths have already adopted the Virtual Store concept (QR Store, 2016).

5. QR code payment

QR codes can be used to store bank account information or credit card information, or they can be specifically designed to work with particular payment provider applications. There are several trial applications of QR code payments across the world (Lacoma, 2018).

QR codes are also used to generate time-based one-time passwords (TOTP) for electronic authentication.

6. Website login

QR codes can be used to log into websites: a QR code is shown on the login page on a computer screen, and when a registered user scans it with a verified smartphone, they will automatically be logged in. Authentication is performed by the smartphone which contacts the server. Google tested such a login method in January 2012.

7. Joining a Wi‑Fi network

By specifying the SSID, encryption type, password/passphrase, and if the SSID is hidden or not, mobile device users can quickly scan and join networks without having to manually enter the data.

8. Electronic authentication

Access to various bibliographic material full-text resource are access through QR code. E-content information and login QR Codes are used very effectively.  

How to cite this article

M.Y. Ali (28 Mar 2022). QR Code: Usage and Applications

References

1.  Hung, Shih-Hsuan; Yao, Chih-Yuan; Fang, Yu-Jen; Tan, Ping; Lee, Ruen-Rone; Sheffer, Alla; Chu, Hung-Kuo (1 September 2020). “Micrography QR Codes”. IEEE Transactions on Visualization and Computer Graphics. 26 (9): 2834–2847. doi:10.1109/TVCG.2019.2896895. ISSN1077-2626. PMID30716038. S2CID73433883.
2. Chen, Rongjun; Yu, Yongxing; Xu, Xiansheng; Wang, Leijun; Zhao, Huimin; Tan, Hong-Zhou (11 December 2019). “Adaptive Binarization of QR Code Images for Fast Automatic Sorting in Warehouse Systems”. Sensors. 19 (24): 5466. doi:10.3390/s19245466. PMC6960674. PMID31835866.
3.  Hein, Buster (21 September 2017). “How to scan QR codes with iOS 11’s Camera app”. Cult of Mac. Retrieved 16 Mar 2022.
4. Lacoma, Tyler (3 October 2018). “How to Scan a QR Code”. Digital Trends. Archived from the original on 22 April 2019. Retrieved 17 Mar 2022.
5. “Tesco QR Code Virtual Store”. 14 April 2012.  Retrieved 22 Mar 2022.

Quick Response QR Code Definition, Types and advantages

This short article provide a brief introduction about the Quick Response (QR Code) definition, background of QR code, different types QR code and advantages of the QR code.

Q 1 What is QR Code?

Q 2 When did QR Code invent?

Q 3 What are the types of QR code?

Q 4 What are the main advantages of QR code?

Q 1 What is QR Code?

Quick Response (QR Code), Matrix barcode. It is also known as 2D barcodes, 2D codes or mobile codes. The QR codes typically appears as a small white square with black geometric shapes, thugh c

Quick Response (QR Code), Matrix barcode. It is also known as 2D barcodes, 2D codes or mobile codes. The QR codes typically appears as a small white square with black geometric shapes, thugh colored QR codes are also now being used. The Information hold by QR codes can be a URL, a Phone number, a sms messages, a V-card or the any text. These codes are referred as QR codes because these allow contents to be content to be decoded at high speed.

When did QR code invent?

The QR code system was invented in 1994 by Masahiro Hara from the Japanese company Denso Wave (Broko, 2011). The initial designed was influenced by the black and white pieces on a Go board. Its purpose was to track vehicles during the manufacturing; It was designed to allow high speed component scanning.

Q 3 what are the types of QR Codes?

There are two types of QR Code (Pathak, 2017)

1. Static QR codes
2. Dynamic QR codes

1. Static QR codes

Static QR codes are printed only one time and cannot be editable.

2. Dynamic QR codes

Dynamic QR codes are editable and changeable any time even after scanned and printing.

Q 4 What are the advantages of QR Code?

The following important advantages of QR codes.

1. Free and open source technology

QR codes are free and open source without paying any commercial and licensing charges.

2. High Storage capacity of the data

It has high storage capacity of the data so user can storage maximum data as per the required need.

3. Small space required for printing

QR codes occupy small space for the printing.

4. Reading capability of QR code from any direction

QR code can read from any direction, it can be read from scanner, cell phones, tablets and smart watches as well capability to restore partially data or content of damaged QR codes.

5. Internet Facility

QR codes also internet facilities to connect Wi-fi connectivity and etc.

6. Printing Process

QR code Printing process is so fast and least space occupy and can print 100 codes in a minutes and it can be readable through scanner and mobile camera as well.

How to Cite this article

Ali, M.Y. (12 Mar 2022). Quick Response QR Code Definition, Types and advantages. https://profileusuf.wordpress.com/2022/03/12/qr-code/

References

Borko, F. (2011). Hand Book of Augmented Reality. Springer. 341. ISBN 9781461400646 Archived retrieved on (04 March 2022).

Pathak, S.K. (2017). Application of QR Code Technology in Providing Library and Information Services in Academic Libraries. A case study Page 1-27, IIT Gandhingar http://events.iitgn.ac.in/2017/CLSTL/wpcontent/uploads/2017/03/1T7_SandeepPathak.pdf retrieved on (04 March 2022).