boot block


Also found in: Dictionary, Wikipedia.

boot block

(operating system)
A program at some fixed location on a hard disk, floppy disk or other media, which is loaded when the computer is turned on or rebooted and which controls the next phase of loading the actual operating system. The loading and execution of the boot block is usually controlled by firmware in ROM or PROM.
References in periodicals archive ?
Drafting of the object taking into account the tasks necessary changes in object-oriented instrumentation and the introduction of the necessary machines boot block control systems and automation object for the purpose of increasing the degree of automation of units 1 and 2.
Intel Corp has unveiled the 0.18-micron Advanced+ Boot Block flash memory, the fourth generation of its Boot Block memory family.
The drives also furnish security features and an execute-in-place (XIP) boot block. That XIP block, actually SRAM, contains the system- and DRAM-initialization code.
- The execution of all works design and documentation, deliveries, construction work on the subject, technical supervision, removal and installation, functional testing and commissioning tasks at complicity in the Boot Block No.