web Development
                     Web Development  Service in Lahore
The previous articles showed you what communication 
between a web client and a server looks like, the nature of 
HTTP requests and responses, and what a server-side 
application needs to do in order to respond to requests from a 
web browser. Armed with this knowledge, it’s time to explore 
how a web framework can simplify these tasks and show you 
how to build your first server-sideThe previous articles showed 
you what communication between a web client and a server 
looks like, the nature of HTTP requests and responses, and 
what a server-side application needs to do in order to respond 
to requests from a web browser. Armed with this knowledge, 
it’s time to explore how a web framework can simplify these 
tasks and show you how to build your first server-side
The earliest software ran on mainframes, and 
software users logged in to the mainframe through 
"dumb terminals" to run the software. Later, with 
the rise of PCs, software began to run mainly on 
the desktop, while software such as databases ran 
on the server. This Client/Server model was 
referred to as the CS architecture.
With the rise of the Internet, people found that the 
CS architecture was not suitable for the Web. The 
biggest reason was that Web applications were 
modified and upgraded very quickly, and the CS 
architecture required each client to upgrade the 
desktop App one by one. Therefore, the 
Browser/Server model became popular. , referred 
to as BS architecture.
Under the BS architecture, the client only needs a 
browser, and the application logic and data are 
stored on the server. The browser only needs to 
request the server, obtain the Web page, and 
display the Web page to the user.
Photoshop, etc., most software is provided in the form of Web. 
For example, the news, blogs, Weibo and other services 
provided by Sina are all Web applications.
Web application development is arguably the most important 
part of software development today. Web development has 
also gone through several stages:
Static Web page: A text editor directly edits and generates a 
static HTML page. If you want to modify the content of the Web
page, you need to edit the HTML source file again. Early 
Internet Web pages were static;
CGI: Since static web pages cannot interact with users, for 
example, if the user fills out a registration form, static web 
pages cannot be processed. To process dynamic data sent by 
users, the Common Gateway Interface, referred to as CGI, 
appeared, written in C/C++.
ASP/JSP/PHP: Since Web applications are characterized by 
frequent modifications, low-level languages such as C/C++ are 
very unsuitable for Web development. Scripting languages 
quickly replaced the CGI mode due to their high development 
efficiency and close integration with HTML. ASP is a Web 
development technology introduced by Microsoft that uses 
VBScript script programming, while JSP uses Java to write 
scripts, and PHP itself is an open source scripting language
MVC: In order to solve the problem of poor maintainability 
caused by directly embedding HTML in scripting language, Web 
applications have also introduced the Model-View-Controller 
pattern to simplify Web development. ASP developed into 
ASP.Net, JSP and PHP also have a lot of MVC frameworks. 
Photoshop, etc., most software is provided in the form of Web. 
For example, the news, blogs, Weibo and other services 
provided by Sina are all Web applications.
Web application development is arguably the most important 
part of software development today. Web development has 
also gone through several stages:
Static Web page: A text editor directly edits and generates a 
static HTML page. If you want to modify the content of the Web
page, you need to edit the HTML source file again. Early 
Internet Web pages were static;
CGI: Since static web pages cannot interact with users, for 
example, if the user fills out a registration form, static web 
pages cannot be processed. To process dynamic data sent by 
users, the Common Gateway Interface, referred to as CGI, 
appeared, written in C/C++.
ASP/JSP/PHP: Since Web applications are characterized by 
frequent modifications, low-level languages such as C/C++ are 
very unsuitable for Web development. Scripting languages 
quickly replaced the CGI mode due to their high development 
efficiency and close integration with HTML. ASP is a Web 
development technology introduced by Microsoft that uses 
VBScript script programming, while JSP uses Java to write 
scripts, and PHP itself is an open source scripting language.
of MVC frameworks. MVC: In order to solve 
the problem of poor maintainability caused 
by directly embedding HTML in scripting 
language, Web applications have also 
introduced the Model-View-Controller 
pattern to simplify Web development. ASP 
developed into ASP.Net, JSP and PHP also have
a lot vvIslamabad, Pakistan, October 30, 2017] 
Recently, Huawei announced that it has assisted 
Pakistan Telecom (PTCL) to successfully complete 
the first batch of G.fast experimental bureaus. At 
the same time, it will help PTCL further accelerate 
the process of fixed network modernization 
through optical-copper collaborative network 
construction and realize Cost-effectively build ultra-
broadband networks.
PTCL is Pakistan's largest integrated 
operator, occupying 95% of the country's 
fixed broadband access network and 
possessing abundant copper wire 
resources. With the rise of Internet video, 
users' bandwidth requirements are 
increasing day by day. PTCL is committed 
to providing users with higher bandwidth 
and better user experience. It plans to 
generally increase the bandwidth to more 
than 20M in the future. Among them, in 
high-value areas, it will provide High-quality
bandwidth services of 100M or even 
Gigabit. As an industry leader in Pakistan, 
PTCL adopts broadband technologies 
adapted to local conditions, such as VDSL2, 
Vectoring, SuperVector, G.fast and GPON, 
to enhance user bandwidth. At the same 
time, PTCL has established an advanced 
laboratory to conduct real-time QoS 
evaluation tests before actual business 
deployment to simulate and improve real 
user experience.
In response to PTCL's demands, Huawei first
used network planning tools to 
automatically identify value areas and 
value users based on the customer's target 
bandwidth, pipeline resources, and copper 
wire status, helping PTCL achieve accurate 
and efficient value-based network 
construction. Secondly, PTCL adopts 
Huawei's one-stop FTTC site solution, which 
uses the original handover box to deploy 
the site at the original site. There is no need
to apply for a new site, which greatly 
shortens the time to market for services. 
Through VDSL2 technology, the bandwidth 
can be generally accelerated to 20Mbit/s 
within an access distance of 1,000 meters. 
When smoothly evolving to Vectoring 
technology in the future, 50Mbit/s 
bandwidth can be provided within an 
access distance of 800 meters. For high-
value areas, PTCL uses Huawei's G.fast end-
to-end solution, which can provide users 
with bandwidth exceeding 100 Mbit/s or 
even Gigabit. Finally, regarding copper wire
quality problems in some areas, Huawei's 
line expert system can quickly and 
accurately locate them. At the fault point, 
PTCL repaired the copper wire and achieved
a significant improvement in bandwidth 
rate and user experience. In addition, in 
areas without copper wire resources, PTCL 
plans to lay GPON optical fiber networks.