IO Device

Abstract

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• Controlled by Device Controller
• Examples are like keyboard and monitor

Useful Commands

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read

• BASH, not for ZSH builtin for retrieving data from standard input

# Display a prompt before the input:
read -p "Enter your input here: " variable

Terminologies

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Plug and Play

• OS automatically collect information about the IO Device
• Centrally assign interrupt level & IO Addresses
• Tell each IO device what its numbers are