The document discusses four key skills for language teaching - phonology, speaking, listening, and reading - and how computers and technology can help develop these skills. It notes that for phonology, computers allow viewing articulatory organs and voice waveforms. For speaking, programs provide input but may not correct pronunciation. Listening skills can be developed through hours of computer input and comprehension questions. Reading skills are enhanced through paced reading, cloze passages, and rearranging texts. Writing and grammar skills benefit from word processors, drills, and vocabulary games. Concordance programs allow searching texts for words and surrounding context.