ISPE Glossary of Pharmaceutical and Biotechnology Terminology

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Boot

(IEEE) To initialize a computer system by clearing memory and reloading the operating system.

Publication Source: FDA Glossary of Computerized System and Software Development Technology

Boot

To cause a computer system to reach a known beginning state. A boot program, in firmware, typically performs this function which includes loading basic instructions which tell the computer how to load programs into memory and how to begin executing those programs. A distinction can be made between a warm boot and a cold boot:

Cold boot means starting the system from a powered-down state.

Warm boot means restarting the computer while it is powered-up.

Important differences between the two procedures are:

1) A power-up self-test, in which various portions of the hardware (such as memory) are tested for proper operation, is performed during a cold boot while a warm boot does not normally perform such self-tests.

2) A warm boot does not clear all memory.

Publication Source: FDA Glossary of Computerized System and Software Development Technology

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