Which are the 5 types of interrupt?
TYPES OF INTERRUPTS
- Maskable Interrupt: The hardware interrupts which can be delayed when a much highest priority interrupt has occurred to the processor.
- Non Maskable Interrupt: The hardware which cannot be delayed and should process by the processor immediately.
What is the difference between BIOS and DOS?
BIOS stands for Basic Input Output System – it talks directly to the hardware, and is what the computer runs when it boots. The BIOS loads DOS, and DOS talks to the hardware through BIOS. DOS is the operating system, in this example. BIOS is the firmware, DOS for lack of word describing !
Which of the following is the BIOS interrupt providing keyboard services?
INT 16h, INT 16H or INT 22 is shorthand for BIOS interrupt call 16hex, the 22nd interrupt vector in an x86-based computer system. The BIOS typically sets up a real mode interrupt handler at this vector that provides keyboard services. This interruption is responsible for control of the PC keyboard.
What is the difference between software interrupt and hardware interrupt?
Hardware interrupt is an interrupt generated from an external device or hardware. Software interrupt is the interrupt that is generated by any internal system of the computer. It do not increment the program counter.
What are hardware and software interrupts?
Hardware interrupt is an interrupt generated from an external device or hardware. Software interrupt is the interrupt that is generated by any internal system of the computer. Hardware interrupt is triggered by external hardware and is considered one of the ways to communicate with the outside peripherals, hardware.
What is a computer interrupt?
An interrupt is a signal that is sent to the processor to request immediate attention. When the processor receives this request, it suspends what it is doing and runs the process associated with the interrupt. A software process needs a service to be provided or OS function to be performed.
What is difference between ROM BIOS and DOS?
BIOS stands for Basic Input Output System – it talks directly to the hardware, and is what the computer runs when it boots. The BIOS loads DOS, and DOS talks to the hardware through BIOS. DOS is the operating system, in this example.
Is DOS and BIOS routines are same briefly discuss?
The BIOS routines provide a hardware-independent interface to various devices in the IBM PC system. While the BIOS allows you to manipulate devices in a very low level fashion, MS-DOS provides a high-level interface to many devices. For example, one of the BIOS routines allows you to access the floppy disk drive.