018. OCR A Level (H046-H446) SLR4 – 1.2 BIOS

About this video

OCR Specification Reference
AS Level 1.2.1f
A Level 1.2.1f

This video takes a look at the BIOS (Basic Input Output System) and the role it players in a computer system).

Key question:

- What is the relationship between these terms: BIOS, ROM, POST, bootstrap and kernel?

00:00 BIOS
00:06 Intro
00:11 BIOS
01:47 Key question
01:58 Going beyond the specification
02:12 Powering on your computer
05:26 Outro

Last updated: 20.03.26

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