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

Program which take input two images by homography, The goal of this questio...

The goal of this question is to create a program that takes as input two images that are related by a homography, and which "warps" the second image (piscine2.bmp) to align with th

Input device used in computer system, Input device used in computer system:...

Input device used in computer system: An input device is typically a mouse or keyboard, the input device is the conduit through which data and instructions enter a computer. A

Optimality - heuristic search strategies, Optimality - Heuristic search str...

Optimality - Heuristic search strategies: The path cost of a solution is considered as the sum of the costs of the actions that led to which solution is given. This is only on

Define cache memory, Define cache memory? A special very high speed mem...

Define cache memory? A special very high speed memory known as a cache is sometimes used to increase the speed of processing by making current programs and data available to th

Explain call by value and call by reference, Call by value and Call by refe...

Call by value and Call by reference Call by value means sending the values of the arguments- The value of each of the original arguments in the calling function is copied in

Define message passing, Q. Define Message Passing? The PVM communicatio...

Q. Define Message Passing? The PVM communication model offers asynchronous blocking receive and asynchronous blocking send and nonblocking receive functions. In our terminology

Determine the define byte - assembler directives, Determine the Define Byte...

Determine the Define Byte - Assembler directives DB (Define Byte): DB directive defines a byte-type variable (i.e. a variable that occupies one byte of memory space). In a give

Define synchronous bus, Define synchronous bus. Synchronous buses are t...

Define synchronous bus. Synchronous buses are the ones in which every item is transferred during a time slot(clock cycle) known to both the source and destination units. Synchr

Intel architecture – 64, IA-64 (Intel Architecture-64) is a 64-bit processo...

IA-64 (Intel Architecture-64) is a 64-bit processor architecture created in cooperation by Hewlett-Packard and Intel applied by processors like Itanium. The objective of Itanium wa

Design a memory buffer of limited size, Extend task 1 so that it now suppor...

Extend task 1 so that it now supports a memory buffer of limited size. Provide the same functionality as task 1 except now make the server work with a limited buffer size. Like

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