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

Why is the wait-for-memory-function-completed, Why is the Wait-For-Memory-F...

Why is the Wait-For-Memory-Function-Completed step required when reading from or writing to the main memory? WMFC step is needed for the write control signal / read control si

Way to interconnect multiple computer across short distance, A computer com...

A computer communication technology that gives a way to interconnect multiple computer across short distance is LAN

What is page fault, What is page fault? Its types? Page fault refers to...

What is page fault? Its types? Page fault refers to the situation of not having a page in the major memory when any process references it. There are two kinds of page fault :

What is associative mapping cache, Q. What is Associative Mapping Cache? ...

Q. What is Associative Mapping Cache? The most fastest and flexible cache organization employs an associative memory that is displayed in Figure below. The associative memory s

What is real time clock, Real time clock A real-time clock keeps the t...

Real time clock A real-time clock keeps the time in real time - i.e. in hours and minutes. Software for the real-time clock comprises an interrupt service procedure which is c

Illustrate third generation computers, Q. Illustrate third Generation Compu...

Q. Illustrate third Generation Computers? The third generation has fundamental hardware technology: Integrated Circuits (ICs). To understand what are Integrated circuits let's

Address phase - computer architecture, Address phase: A PCI bus transa...

Address phase: A PCI bus transaction starts having an address phase. The initiator,  after seeing that it has GNT# and the bus is inactive, drives the target address onto the

Explain significance of init() & destroy( ) method of applet, Explain the s...

Explain the significance of init() and destroy( ) methods of an applet? Also explain two ways of invoking an applet. The init( ) method is utilized for fundamental initializati

Write an algorithm for deadlock detection, Write an algorithm for deadlock ...

Write an algorithm for deadlock detection. An algorithm for deadlock detection: 1. Assume that Work and Finish be vectors of length m and n, correspondingly. Initialize:

Registers - processor, These will be independent of each other and will not...

These will be independent of each other and will not affect to each other, and so they can be fed into two different implementations units and run in parallel. The ability to remov

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