Differentiate b/w wml-script & web-based scripting language, Computer Engineering

Assignment Help:

Differentiate between WML-Script and Web-based scripting languages.

WML Script is a lightweight procedural scripting language, optimized for small-memory, low-power CPU wireless devices. This has its roots in the ECMA- Script scripting language, a standard version of JavaScript based upon core features of such language.

WML Script language syntax, constructs, flow control structures and etc. All are similar to those of JavaScript due to this inheritance. This provides an optimized and extended subset of JavaScript for the narrowband wireless network-depend devices as mobile phones, PDAs, and two-way pagers.

Difference among WML script and other web based languages:

  • WML Script is loosely coupled along with WML and can be used independently like a standalone tool
  • The method WML Script is transferred from the WAP gateway to be executed upon the wireless client is diverse from the way JavaScript is transferred over the Web for execution upon the client browser. But JavaScript is transferred in clear text, whereas WML Script is compiled through the WAP gateway in byte code before being transmitted to the wireless client. The benefit of this approach is, the byte code is usually much smaller in size than WML Script source code. It enables faster download of WML Script along with less bandwidth consumption. This also permits low-memory capacity of the wireless device to store many application data.
  • The other key difference is that the WS code is not embedded along with the WML source file but is remained as an independent module.
  • WML Script does not support global variables; simply variables declared in functions or passed like functions parameters are permitted.
  • Language support for arrays is not available.
  • Support for low-level binary arithmetic operations is available also in the form of bit-wise operators.

The wireless device requires a WML Script virtual machine to interpret such WS byte code. If the device does not have a WS VM, this can ignore the reference to WML Script in a WML file. While the WML document interpreter comes across a reference to WML Script, this asks the WAP gateway for the referred WML Script module (as compilation).


Related Discussions:- Differentiate b/w wml-script & web-based scripting language

Explain concurrent sharing, Explain Concurrent Sharing Here a number of...

Explain Concurrent Sharing Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. Th

Writing down your own interrupt service routines, Q. Writing down your own ...

Q. Writing down your own Interrupt Service Routines? Here are a few rules which should be kept in mind while writing down your own Interrupt Service Routines: 1.  Use Int 21

Explain about the functionality of olap, Hyper cube or multidimensional cub...

Hyper cube or multidimensional cube forms the core of OLAP system. This having of measures which are arranged according to dimensions. Hyper cube Meta data is formed by star or sno

Illustrate what is a astrophysics, Q. Illustrate what is a astrophysics? ...

Q. Illustrate what is a astrophysics? Answer:- Examine of galaxies, stars and the creation of the universe including predictions about how it will proceed from here.

Find resolution and output voltage of D/A convertor, A 6-bit R-2R ladder D/...

A 6-bit R-2R ladder D/A converter has a reference voltage of 6.5V. It meets standard linearity.Find (i) The Resolution in Percent. (ii) The output voltage for the word 011100.

Input output techniques - computer architecture, Input Output Techniques: ...

Input Output Techniques: o   Interrupt driven o   Direct Memory Access (DMA) o   Programmed Programmed I/O   CPU has control over I/O directly   Read/write

Explain dataflow computation model, Explain dataflow computation model ...

Explain dataflow computation model An option to the von Neumann model of computation is a dataflow computation model. In a dataflow model the control is tied to the flow of dat

Explain working of supercomputer, Q. Explain working of Supercomputer? ...

Q. Explain working of Supercomputer? Supercomputers, capable of executing in excess of one billion floating-point operations per second (FLOPS), are very powerful, extremely hi

What are the different tones used in strowger telephony, What are the diffe...

What are the different tones used in strowger telephony? Explain with the help of waveforms and the timings. Dial Tone: it is used to indicate that the exchange is ready to r

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd