7.2 Input and output devices

• Input devices are hardware components that allow users to enter data and instructions
• A scanner converts physical documents into digital images.
• Match the input device with its primary use:

  Keyboard ↔️ Typing documents

  Mouse ↔️ Navigating menus

  Webcam ↔️ Video conferencing

  Touchscreen ↔️ Drawing
• Output devices transform processed data into a human-readable format.
• A printer produces hard copies of digital documents.
• Match the output device with its primary use:

  Monitor ↔️ Viewing images

  Headphones ↔️ Listening to audio privately

  Projector ↔️ Movie screenings

  Speakers ↔️ Listening to music
• Order the steps in the process of how input and output devices interact with a computer system:

  1️⃣ Data is entered into the computer via an input device

  2️⃣ The input device converts human-readable information into a computer-processable format

  3️⃣ The computer processes the data

  4️⃣ The output device transforms processed data into a human-readable format

  5️⃣ The user receives the processed information
• What is the primary role of input devices in a computer system?

  Enter data and instructions
• What is the primary role of output devices in a computer system?

  Display or present data
• Input devices convert human-readable information into a format that the computer can process.
• Output devices transform processed data back into a human-readable format.
• What are input devices used for in a computer system?

  Enter data and instructions
• Input devices convert human-readable information into a format the computer can process.
• A microphone is a common input device.
• What type of data does a scanner convert into a digital format?

  Physical documents
• A touchscreen allows direct interaction with the display via touch.
• What is the primary function of output devices?

  Present data to the user
• Speakers are output devices that transform audio signals into human-readable sound.
• What does a monitor display for the user?

  Visual information
• A printer produces hard copies of digital documents.
• Headphones are output devices used for private audio listening.
• Match the input device with its use:

  Keyboard ↔️ Typing documents

  Mouse ↔️ Navigating menus

  Microphone ↔️ Capturing audio

  Scanner ↔️ Converting documents to digital images
• Output devices transform processed data into a human-readable format.
• What type of data do speakers output to the user?

  Audio signals
• Keyboards and mice are examples of input devices.
• What is the primary function of input devices in terms of data processing?

  Send data to the CPU
• Input and output devices perform complementary roles in a computer system.