<标题> The present era is an era of technology. Everywhere we are surrounded with technological devices and everyone is somehow familiar with technology. The foundation of all types of technology is laid down in educational institutions. The education in secondary level plays an essential role since it is responsible for the development of society. Therefore, secondary education can be made more effective by the use of technology and all resources made available through technology.This introduces us to the term 'Educational Technology'. The word was recognised in 1967 with the establishment of National Council for Educational Technology in the United Kingdom. in his book Educational Technology noted that "For different reasons educational technology perhaps will perform support or enriching role relative to classroom teaching in college and University rather than serving a replacement for such instruction".  Every technology has its merits and limitations and no one technology is useful for all types of learning.