1
Q
What is the first thing a computer does as it is turned on
A
Turns on input/output devices
- so that it can present any errors to user straight away
- however before anything can be loaded in ram, the os has be fetched form secondary storage
2
Q
First step
A
Cpu fetches instructions from BIOS on ROM
3
Q
Second step
A
BIOS instructions are loaded in ram
4
Q
3rd step
A
Bios starts up monitor and keyboard
5
Q
4th step
A
Bios checks your computer is working
6
Q
5th step
A
OS is fetched from hard drive
7
Q
6th step
A
OS is loaded into ram
8
Q
7th step
A
Bios transfers control to os
GCSE Computer Science
flashcards
Decks in class (47)
# Cards
-
Computer Systems 1.114
-
Memory 1.29
-
Units Of Data + Data Types 2.114
-
Operating Systems 1.231
-
Start -up Sequence 1.18
-
Central Processing Unit 1.122
-
Secondary Storage 1.212
-
Networks 1.316
-
Circuit Switching networks 1.310
-
Routers and Switches 1.38
-
Networks - Topologies 1.38
-
Networks - layers/protocols 1.323
-
Images and Sound 1.241
-
T1 - Memory/ Secondary storage36
-
T1 - Architecture of the CPU/ Performance30
-
T2 - Characters and Images23
-
T2 - Binary + Hex18
-
T2 - Sound + Compression27
-
T3 - LANs and WANs:56
-
T3 - Wireless networking30
-
T3 - Client server network36
-
T3 - Protocols and layers:29
-
T4 - Network threats24
-
T4 - Preventing vulnerabilities:17
-
T4 - Operating systems/ Utility software37
-
T5 - Ethical and environmental issues:21
-
T5 - Legislation41
-
T6 - Computational Thinking/ Searching/ sorting algorithms16
-
T6 - Flowcharts/Pseudo-code27
-
T7 - Programming fundamentals30
-
T7 - Sequence/Selection and Iteration25
-
T7 - Arrays and Subroutines24
-
T7 - Records and files15
-
T7 - SQL12
-
T8 - Translators and facilities:35
-
T8 - Logic diagrams/ Truth tables8
-
T8 - Defensive design29
-
T8 - Errors and testing16
-
T8 - IDEs20
-
T1 - MS16
-
T2 - MS17
-
T3 - MS16
-
T4 - MS20
-
T5 - MS11
-
T6 - MS14
-
T8 - MS13
-
Computer Science Abbreviations 1.115
