The use of effective multimedia instructions such as mobiles, computers, and the internet in language learning has turned out to be useful since the last decades. The impact of multimedia and synchronous approaches of computer-assisted language learning (CALL) on English as a foreign language (EFL) learners' learning of language skills and components has been studied to some extent. However, the impact of computerized mediated instruction through multimedia (text and graphics) on learning collocations requires further investigations. This study aimed at investigating whether synchronous and asynchronous multimedia components: text and text with added graphics had any effects on EFL learners' learning of collocations. In doing so, 150 male EFL learners at pre-intermediate proficiency level were selected through convenience sampling. They were divided into six groups. The results of the study showed that computerized mediated instruction was more effective than non-computerized instruction. Also, synchronous computerized instruction was more effective than asynchronous computerized instruction. The results also showed that presentation through text with added graphics was more effective than presentation through simple text. The results are discussed and some pedagogical implications are presented.
