What is the significance of word frequency in teaching and learning English?
A passive knowledge of the 2,000 most frequent words in English would provide a reader with familiarity with nearly nine out of every ten words in most written texts. Source: Thornbury, S. How to Teach Vocabulary Longman 2002
So corpus data reveals that % of written English is made up of just 2,000 words. This seems amazing, particularly when you consider that the vocabulary of an educated native speaker of English is estimated at 20,000 words.
Now put each of these computer-related words in the correct group: software, download (noun or verb), scanner.