The terms definitions :

1- Educational technology :
it means using the technology in the education field to facilitate and improve the learning processes .

2- Netiquette:
it is about how should the users of the computer network behavior .

3- LMS:
It is a shortcut of "Learning Management System"  which it describes a software application that is used with specific learning process to create content, monitor student participation, and assess student performance.


4- CAL:
It's a shortcut of "Computer Aided Learning" or "Computer Assisted Learning"  which it means that the students learn subjects through using the computers with subject wise learning materials.


5- E-learning:
E-learning is electronic learning, and this means using a computer and the electronic media in education.

6- D-learning:
D-learning progression describes a progression of English language learning typical of students learning English as an additional language or dialect .

7- Blended learning:
Blended learning is a formal education program in which a student learns at least in part through online delivery of content and instruction with some element of student control over time, place, path or pace , and this will enhance and extend the learning opportunities.

8- Online learning:
Online learning is a form of distance education in which the student takes courses without attending school or university while the education is delivered over the Internet.