A super I/O controller on a motherboard is responsible for managing legacy I/O devices and interfaces, such as serial and parallel ports, floppy disk controllers, and keyboard/mouse interfaces. It provides a bridge between these older technologies and the motherboard's more modern components, facilitating communication and data transfer. Additionally, it often includes functions for temperature monitoring and fan control, enhancing system management. Overall, it ensures compatibility with legacy peripherals while supporting the overall functionality of the system.
for complete details on IO controllers : u can refer http://en.wikipedia.org/wiki/I/O_Controller_HubFor technical detail on I/O controller one can refer http://www.ipsupermarket.com
it is used to control the carry the data on bus cable
3F0 - 3F7Primary floppy disk drive controller. Primary IDE controller (slave drive) (3F6-3F7h)
South Bridge
Local I/O Bus
A reentrant kernel enables processes to give away the CPU while in kernel mode ,not hindering other processes from also entering kernel mode. A typical use is IO wait. The processes wants to read a file..It calls a kernel function for this. Inside the kernel function,the disk controller is asked for the data . Getting the data will take some time & the function is blocked during that time. With an reentrant kernel,the scheduler will assign CPU to another process until an interrupt from disk controller indicates that the data is available and our thread can be resumed . This process can still access IO,like user input
In its simplest form on a single-processor motherboard, a single QPI is used to connect the processor to the IO Hub (e.g., to connect an Intel Core i7 to an X58). In more complex instances of the architecture, separate QPI link pairs connect one or more processors and one or more IO hubs or routing hubs in a network on the motherboard, allowing all of the components to access other components via the network.
Local I/O bus.
The Super I/O chip serves as an input/output controller in a computer system, facilitating communication between the CPU and various peripheral devices such as keyboard, mouse, serial and parallel ports. It helps in managing data flow and providing interfacing capabilities for different hardware components in the system.
The Super Io chip is a specialized integrated circuit found in computer motherboards that manages input/output functions, including communication with peripherals like keyboards, mice, and serial ports. It typically incorporates various interfaces such as PS/2, parallel ports, and sometimes even legacy support for floppy disk drives. The chip helps streamline system architecture by consolidating multiple I/O functions into a single component, enhancing efficiency and reducing the number of required chips on the motherboard.
it is a device to transfer the data directly between io device and memory without through the cpu so it performs a high-speed data transfer between memory and io device
For desktops, yes. However you need to be sure to use the one for your motherboard, otherwise it may not fit or may cover ports.