Other well-known examples are the interrupt vector table and the main loop.

Webopedia definition of 'interrupt vector table'

Alternatively on systems using the shared library concept, the interrupt vector table or the import descriptor table can be modified in memory.

The Interrupt Descriptor Table (IDT) is a data structure used by the x86 architecture to implement an interrupt vector table.

(Note that on the 80186 and earlier, the first kibibyte of the address space, starting at address 0, is the permanent, immovable location of the interrupt vector table.)

When a computer is booted from an infected sector, Form goes resident, hooks the interrupt vector table, and runs the original boot sector which it's hidden in an area it flags as defective.

An interrupt vector is the memory address of an interrupt handler, or an index into an array called an interrupt vector table that contains the memory addresses of interrupt handlers.

The address of the interrupt service routine (ISR) is read from the interrupt vector table and loaded to the IP register, and the ISR is executed as a consequence.

All BIOS services are available, and the memory below address 500 hex contains the interrupt vector table and the 256-byte BIOS data area, but the boot program must set up its own stack (or at least MS-DOS 6 acts like it must).