sentences:  The advantages to this form of instruction include flexibility for both the students and the instructor in regards to the time spent towards the course, as students are able to log on to the course web site at any time of the day or night.They also enjoy the freedom of being able to complete coursework from any location, as students are generally not required to come to campus at all for courses that are taught fully online.Due to their increased adoption among educational institutions, distance learning programs drive the demand for powerful hardware and software to host educational applications, often for thousands of users per institution.