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Understanding Input Devices: Key Functions and Features

This unit provides an overview of input devices, focusing on keyboards and mice. Learners will discover how to identify different keys on a keyboard and understand basic mouse actions. The lessons explore the functionality of speech recognition systems and how various input devices control activities on the computer. Key concepts include the description of devices, their functions, and distinctive features such as optical sensors and wireless connections. This foundational knowledge is essential for effective interaction with technology.

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Understanding Input Devices: Key Functions and Features

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Presentation Transcript

  1. Unit 5

  2. Learning objectives • To be able to describe input devices • To identify different keys on a keyboard • To understand basic mouse actions • To understand the use of speech recognition systems

  3. Input device? Output device?

  4. Describing functions • For + gerund • This is a device for controllingthe cursor and selecting items on the screen. • Used + to + infinitive • It’s used to control… • Relative pronoun + verb • This is a device which controls… • Relative pronoun + used + to + infinitive • This is a device which/that is used to control… • Work by + gerund • It works by detecting light from the computer screen.

  5. Describing features • An optical mouse has an optical sensor instead of a ball underneath. • It usually features two buttons and a wheel. • You can connect it to a USB port • A wireless mouse works/operates without cables. • It allows the user to answer multiple-choice questions and…

  6. Take-home assignmentII • Unit 6 page 27 • Read the text and answer the questions (C 1-6) • On a piece of paper • Name, student ID, answers • Write complete sentences • Hand it in to 呂豪笙 next week before the start of the class

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