Technical Terms - Hardware (A-Z) - I/O Address

What is an I/O address?

• A type of computer monitor

• A software application

• A type of computer memory

• A numeric identifier used by the CPU to communicate with peripherals

Why does each I/O port on a computer have a unique address?

• To differentiate it from other ports

• To confuse the CPU

• To slow down data transfer

• To save memory space

How does a program communicate with a peripheral using its I/O address?

• By sending commands and data to that address

• By ignoring the address

• By shutting down the peripheral

• By sending data to all addresses

What happens when you print a document on a computer?

• The CPU forwards the document to the printer's I/O address

• The CPU forwards the document to the monitor's I/O address

• The CPU forwards the document to the CPU's I/O address

• The CPU forwards the document to the keyboard's I/O address

What is memory-mapped I/O?

• A type of computer game

• A type of computer virus

• A method that assigns addresses to I/O ports from the same address space as the main system memory

• A method that assigns addresses to I/O ports randomly

How did early computers map I/O ports?

• Using fixed addresses based on the type of I/O port

• Using dynamic addresses

• Using addresses from the CPU

• Using addresses from system memory

What is the benefit of modern computers using memory-mapped I/O?

• Faster data transfer

• No change in reliability or conflicts

• Decreased reliability and increased conflicts

• Increased reliability and reduced conflicts

How do applications interact with peripherals in modern computers?

• By avoiding interactions with peripherals

• Using system APIs instead of sending data to specific, pre-defined addresses

• By sending data to random addresses

• By directly accessing the CPU's memory

What does the Windows Device Manager display related to I/O addresses?

• A computer's GPU addresses

• A computer's CPU addresses

• A computer's system memory addresses

• A computer's I/O addresses

What was the standard address for a computer's first serial port in early computers?

• 0x03F8

• 0x0A0B

• 0x1234

• 0x5678