Podcast
Questions and Answers
What is the definition of input/output (I/O) in the context of an information processing system?
What is the definition of input/output (I/O) in the context of an information processing system?
Which of the following is considered an input device for a computer?
Which of the following is considered an input device for a computer?
What type of operation do devices like modems and network cards typically perform?
What type of operation do devices like modems and network cards typically perform?
How is 'performing I/O' defined in the context of an information processing system?
How is 'performing I/O' defined in the context of an information processing system?
Signup and view all the answers
What determines whether a device is classified as an input or output?
What determines whether a device is classified as an input or output?
Signup and view all the answers
What is the reaction of the system called when an interactor interacts with it?
What is the reaction of the system called when an interactor interacts with it?
Signup and view all the answers
What is the role of printers and monitors in relation to computers?
What is the role of printers and monitors in relation to computers?
Signup and view all the answers
Why is the combination of the CPU and main memory considered the brain of a computer?
Why is the combination of the CPU and main memory considered the brain of a computer?
Signup and view all the answers
What does an I/O interface do when a CPU communicates with devices via a bus?
What does an I/O interface do when a CPU communicates with devices via a bus?
Signup and view all the answers
What is the purpose of generating interrupts in relation to input devices?
What is the purpose of generating interrupts in relation to input devices?
Signup and view all the answers
How does a computer that uses memory-mapped I/O access hardware?
How does a computer that uses memory-mapped I/O access hardware?
Signup and view all the answers
What is an alternative method of accessing hardware besides memory-mapped I/O?
What is an alternative method of accessing hardware besides memory-mapped I/O?
Signup and view all the answers
Why is it important for an I/O interface to be able to convert serial data to parallel form and vice versa?
Why is it important for an I/O interface to be able to convert serial data to parallel form and vice versa?
Signup and view all the answers
What does an I/O algorithm aim to do when exchanging data with a secondary storage device?
What does an I/O algorithm aim to do when exchanging data with a secondary storage device?
Signup and view all the answers
What is the role of handshaking in an I/O interface?
What is the role of handshaking in an I/O interface?
Signup and view all the answers
Study Notes
Input/Output (I/O) in Information Processing Systems
- I/O refers to the communication between an information processing system and the outside world, involving the flow of data and instructions into and out of the system.
Input Devices
- Examples of input devices for a computer include keyboards, mice, scanners, and microphones.
I/O Operations
- Devices like modems and network cards typically perform data transfer operations, such as sending and receiving data.
Performing I/O
- Performing I/O refers to the process of transferring data between devices and the system's CPU or memory.
Classifying Input and Output Devices
- A device is classified as an input device if it provides data to the system, and as an output device if it receives data from the system.
System Reaction
- When an interactor interacts with the system, the system's reaction is called a response.
Printers and Monitors
- Printers and monitors are examples of output devices, as they receive data from the computer and display or produce a physical output.
CPU and Main Memory
- The combination of the CPU and main memory is considered the brain of a computer, as it performs calculations and stores data.
I/O Interface
- An I/O interface allows a CPU to communicate with devices via a bus, and handles tasks such as data transfer and conversion.
Interrupts and Input Devices
- Generating interrupts allows input devices to signal the CPU that they have data to transfer, interrupting the CPU's current task to process the input.
Memory-Mapped I/O
- Memory-mapped I/O allows a computer to access hardware by mapping device registers to memory addresses.
Alternative I/O Methods
- An alternative method of accessing hardware besides memory-mapped I/O is programmed I/O, where the CPU directly accesses the device.
Data Conversion
- An I/O interface must be able to convert serial data to parallel form and vice versa, as devices may use different data transfer formats.
I/O Algorithms
- An I/O algorithm aims to optimize data exchange between the system and secondary storage devices, such as hard drives.
Handshaking
- Handshaking in an I/O interface refers to the process of negotiating data transfer rates and protocols between devices to ensure reliable data exchange.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on input/output communication, which involves the exchange of signals or data between an information processing system and the external world, such as humans or other systems.
