Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
The chapter discusses various input/output (I/O) devices and modules, explaining their roles in computer systems, including human-readable and machine-readable devices. It further elaborates on the memory hierarchy, the function of the I/O module, and different methods of data transfer such as programmed I/O, interrupt-driven I/O, and direct memory access (DMA). Additionally, it highlights the importance of error detection and synchronization in device communication.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
References
36 part b.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: I/O Module
Definition: A hardware component that manages communication between the CPU and I/O devices, controlling timing, buffering, and error detection.
Term: Memory Hierarchy
Definition: The structure that organizes memory from fastest to slowest, including registers, cache, main memory, and hard disks.
Term: Direct Memory Access (DMA)
Definition: A method that allows hardware devices to access the main memory independently of the CPU, enabling efficient data transfers.
Term: Programmed I/O
Definition: A method of data transfer where the CPU actively checks the status of I/O devices, potentially wasting processor time.
Term: Interruptdriven I/O
Definition: A method where the CPU can perform other tasks while waiting for I/O operations to complete, leading to more efficient use of resources.