Computing Revision

1.0 Computer Systems
What is a computer System?
http://www.youtube.com/watch?v=E8umjRRaMAA
http://www.youtube.com/watch?v=9pk6aoCLNXM
http://www.youtube.com/watch?v=Xdomj1R0qz8

Reliability of a Computer System
http://www.youtube.com/watch?v=-4jOOaIXjsk
http://www.youtube.com/watch?v=giT2KJP-lIU
http://www.youtube.com/watch?v=kAaCjJac3GQ
http://www.youtube.com/watch?v=afWRP7CKRuA
2.1 – The Central Processing Unit (CPU)
CPU
http://www.youtube.com/watch?v=DvgJZvVyJfA
Fetch Execute Cycle
http://www.youtube.com/watch?v=drUBm_luhso
Clock Speed
http://www.youtube.com/watch?v=UHIhoLHGTR4
http://www.youtube.com/watch?v=2G_MEXH3NRU
http://www.youtube.com/watch?v=IudEmOTHYik
Cache Memory
http://www.youtube.com/watch?v=BG792pJgxDE
http://www.youtube.com/watch?v=2mT-51sHFC8
CPU Cores
http://www.youtube.com/watch?v=zFs-LVCi8C4
2.2 – Binary Logic
Video - Binary Data -Part A - http://www.youtube.com/watch?v=UXd18LLjWTw
Video - Binary Data -Part B - http://www.youtube.com/watch?v=HSIz2Y053jw
Video - Binary Data -Part C - http://www.youtube.com/watch?v=5iBLxjfDwko
Video - Binary Data -Part D - http://www.youtube.com/watch?v=QPstQt_0imE
Video - Logic Gates -Part A - http://www.youtube.com/watch?v=QXkSHgQhgRc
Video - Logic Gates -Part B - http://www.youtube.com/watch?v=QBOpng8VwMg
Video - Logic Gates -Part C - http://www.youtube.com/watch?v=IW4Dxbtlni8
Video - Logic Gates -Part D - http://www.youtube.com/watch?v=Or_K_EQflBQ
Video - Truth Tables- Part A - http://www.youtube.com/watch?v=6Og3nXIx1h4

Video - Truth Tables- Part B - http://www.youtube.com/watch?v=R577hKvWSFA

Video - Truth Tables- Part C - http://www.youtube.com/watch?v=JFX9jgXOTW4

Video - Truth Tables - Part D - http://www.youtube.com/watch?v=2mxWDKsrwHs

2.3 – Memory

RAM v ROM

http://www.youtube.com/watch?v=URYPErhTkMY

http://www.youtube.com/watch?v=IbAbhuTELWE

The need for ROM

http://www.youtube.com/watch?v=TL4hShV8_gM

http://www.youtube.com/watch?v=_1bvsA7mBww

http://www.youtube.com/watch?v=J_1fRa4aNEU

http://www.youtube.com/watch?v=dEvG8lRuz9w

Cache Memory

http://www.youtube.com/watch?v=VxJrdXszz4g

http://www.youtube.com/watch?v=AfbHD9W7QS0

Flash Memory

http://www.youtube.com/watch?v=Rw0J6AjV83o

http://www.youtube.com/watch?v=kh6HexH6LZs

2.4 – Input & Output Devices

Video - IO Devices -Part A - http://www.youtube.com/watch?v=kbrlVOdQM_Q

Video - IO Devices -Part B - http://www.youtube.com/watch?v=CWhs22_y7Uw

Video - IO Devices -Part C - http://www.youtube.com/watch?v=jeUYGTrTIYs

Video - IO Devices -Part D - http://www.youtube.com/watch?v=50ibn_XMfH0

Video - IO Devices 2- Part A - http://www.youtube.com/watch?v=j-V2gqJLjx0

Video - IO Devices 2- Part B - http://www.youtube.com/watch?v=jqWEJn8-uOg

Video - IO Devices 2- Part C - http://www.youtube.com/watch?v=_mou7YIcTMc

Video - IO Devices 2 - Part D - http://www.youtube.com/watch?v=y4mEGUu4hbk

2.5 – Secondary Storage

Video - Secondary Storage - Part A - http://www.youtube.com/watch?v=-pvaP6gHw_E

Video - Secondary Storage - Part B - http://www.youtube.com/watch?v=FtsKBYIuquo

Video - Secondary Storage - Part C - http://www.youtube.com/watch?v=82JJcftdwlk

Video - Secondary Storage - Part D - http://www.youtube.com/watch?v=bp9mhAeye5A

Video - Storage Devices- Part A - http://www.youtube.com/watch?v=dL1Z_TJolqY

Video - Storage Devices - Part A - http://www.youtube.com/watch?v=5zAaBZIq_wc

Video - Storage Devices - Part A - http://www.youtube.com/watch?v=-VoIA6QppXs

Video - Storage Devices - Part A - http://www.youtube.com/watch?v=-SvzCcEHMBs

3.0 – Software

Video - Common Utility Programs - Part A - http://www.youtube.com/watch?v=8G5jKbfWAk0

Video - Common Utility Programs - Part B - http://www.youtube.com/watch?v=eRF26IQQTEM

Video - Common Utility Programs - Part C - http://www.youtube.com/watch?v=WkGp1-0A75Q

Video - Common Utility Programs - Part D - http://www.youtube.com/watch?v=yBpvc-bZiBk

4.1 – Data Representation

Video - Definitions of Units - Part A - http://www.youtube.com/watch?v=jUhHwijW0gk

Video - Definitions of Units - Part B - http://www.youtube.com/watch?v=sqEwUTDsTs0

Video - Definitions of Units - Part C - http://www.youtube.com/watch?v=zlw6azRHJqM

Video - Definitions of Units - Part D - http://www.youtube.com/watch?v=J2LfM1_pHd8

4.2 – Representing Numbers

Video - Binary - PartA - http://www.youtube.com/watch?v=mE2Bs8VQI3g

Video - Binary - PartB - http://www.youtube.com/watch?v=9uhl1nry8Iw

Video - Binary - PartC - http://www.youtube.com/watch?v=VcxGjSZtdHI

Video - Binary Conversion - Part A - http://www.youtube.com/watch?v=t8Yx90xoCv8

Video - Binary Conversion - Part B - http://www.youtube.com/watch?v=1Eq3nyuq1sU

Video - Binary Addition - Part A - http://www.youtube.com/watch?v=HK-uxQzfh_U

Video - Binary Addition - Part B - http://www.youtube.com/watch?v=-L0fTc2V7IU

Video - Hexadecimal -Part A - http://www.youtube.com/watch?v=r5BL3no65dI

Video - Hexadecimal -Part B - http://www.youtube.com/watch?v=yekYpC7RBlc

Video - Hexadecimal -Part C - http://www.youtube.com/watch?v=6TCSIN5mg-g

Video - Hexadecimal -Part D - http://www.youtube.com/watch?v=ptAPT3XW4M8

4.3 – Representing Characters

Video - Character Sets - Part A - http://www.youtube.com/watch?v=ZxFmsJJLO3g

Video - Character Sets - Part B - http://www.youtube.com/watch?v=uv2vh3XxTt4

Video - Character Sets - Part C - http://www.youtube.com/watch?v=p7v-nG9g7ZA

Video - Character Sets - Part D - http://www.youtube.com/watch?v=xvVuO9Ao5o0

4.4 Representing Images

Video - Images- PartA - http://www.youtube.com/watch?v=Y9kGLso8plI

Video - Images- PartB - http://www.youtube.com/watch?v=zdzFyGUy22g

Video - Image Meta-data - Part A - http://www.youtube.com/watch?v=FeJS0san-wY

Video - Image Meta-data - Part B - http://www.youtube.com/watch?v=dO_Mh5qNNdY

Video - Image Meta-data - Part C - http://www.youtube.com/watch?v=Yp5GDaGG0lE

4.5 – Representing Sound

Video - Sound - Part A - http://www.youtube.com/watch?v=hKtndr2PD70

Video - Sound - Part B - http://www.youtube.com/watch?v=7HBz2f4UIGo

Video - Sound - Part C - http://www.youtube.com/watch?v=52lkWQ2175Q

Video - Sound - Part D - http://www.youtube.com/watch?v=jb4SA4Yr1gs

5.1 – Database

5.2 – The Database Management System (DBMS)

Video - The DBMS -Part A - http://www.youtube.com/watch?v=GSRHukKM0VM

Video - The DBMS - Part B - http://www.youtube.com/watch?v=lDXHRFXObJQ

5.3 – Relational Databases

Video - Tables & Entites - Part A - http://www.youtube.com/watch?v=gXfEklc17tw

Video - Tables & Entites - Part B - http://www.youtube.com/watch?v=pdFwTNln054

Video - Logical Operators - Part A - http://www.youtube.com/watch?v=_du17oPBhWI

Video - Logical Operators - Part B - http://www.youtube.com/watch?v=NLYEmd5T02E

Video - Key Fields - http://www.youtube.com/watch?v=LJkTzQD9VSU

Video - Data Validation - Part A - http://www.youtube.com/watch?v=gxqjTB5VQss

Video - Data Validation - Part B - http://www.youtube.com/watch?v=KgbtvWIF9ZQ

6.1 – Networks

Exam Style Questions

Video - Client Networks & P2P Networks - http://www.youtube.com/watch?v=o4rMFxgETus

Video - NetworkTopologies - http://www.youtube.com/watch?v=cHu-Ozg_D0g

Video - MAC & IPaddressing, Packets and Protocols - http://www.youtube.com/watch?v=xV71UBjlhjo

Build Your Own Network - http://www.teachict.com/gcse_computing/ocr/215_communications_networking/network_hardware/resources/NWB_SIM.swf

The Story of Send –

http://www.teachict.com/gcse_computing/ocr/215_communications_networking/network_hardware/resources/NWB_SIM.swf

Inside Google’s Data Centres - http://www.google.com/about/datacenters/inside/streetview/

6.2 – The Internet

Video - The Internet & Hardware - http://www.youtube.com/watch?v=HjN4Cy9TjQw

Video - IP Adressing of Resources - Part A - http://www.youtube.com/watch?v=pMPaeVEcF08

Video - IP Adressing of Resources - Part B - http://www.youtube.com/watch?v=8Z40WL8EhXc

Video - The Importance of HTML - Part A - http://www.youtube.com/watch?v=HUHeiUBQrXc

Video - The Importance of HTML - Part B - http://www.youtube.com/watch?v=vtlyRJQb27M

7.1 – Algorithms

Video - Representing Algorithms - http://www.youtube.com/watch?v=XDWw4Ltfy5w

7.2 – Programming Languages

Video - HL Code & Machine Code - Part A - http://www.youtube.com/watch?v=ToSjDJXH1L4

Video - HL Code & Machine Code - Part B - http://www.youtube.com/watch?v=16k6Q8rZFOk

Video - HL Code & Machine Code - Part C - http://www.youtube.com/watch?v=ksy8H5fppis

Video - HL Code & Machine Code - Part D - http://www.youtube.com/watch?v=NC1PCOmm8rw

7.3 – Control Flow in Imperative Languages

Video - Constructs:Sequence - Part A - http://www.youtube.com/watch?v=cf8SBM-LroE

Video - Constructs:Sequence - Part B - http://www.youtube.com/watch?v=7Fb2ypqA-yk

Video - Constructs:Sequence - Part C - http://www.youtube.com/watch?v=dJ_hwvpnE6k

Video - Constructs:Selection - Part A - http://www.youtube.com/watch?v=isZvjlPz4rQ

Video - Constructs:Selection - Part B - http://www.youtube.com/watch?v=3xo5QWWY-3I

Video - Constructs:Selection - Part C - http://www.youtube.com/watch?v=c_5ji7vdCZk

Video - Constructs:Iteration - Part A - http://www.youtube.com/watch?v=qQ_MV1jq5x0

Video - Constructs:Iteration - Part B - http://www.youtube.com/watch?v=__hOArNOm8E

Video - Constructs:Iteration - Part C - http://www.youtube.com/watch?v=-EMltjrCK6c

Video - Constructs:Iteration - Part D - http://www.youtube.com/watch?v=UejFBrQObh4

7.4 – Handling Data in Algorithms

Video - String Manipulation - Part A - http://www.youtube.com/watch?v=LAX0AtXGEZg

Video - String Manipulation - Part B - http://www.youtube.com/watch?v=YCbekXSGef4

Video - File Handling Operations - Part A - http://www.youtube.com/watch?v=IhKEUwly1ag

Video - File Handling Operations - Part B - http://www.youtube.com/watch?v=xoJKYbV_39I

7.5 – Testing

Video - Syntax & Logic Errors - Part A - http://www.youtube.com/watch?v=7YKricQmoCI

Video - Syntax & Logic Errors - Part B - http://www.youtube.com/watch?v=mSYQ4lWGMvg

Video - Test Data -Part A - http://www.youtube.com/watch?v=hLP05n62d6o

Video - Test Data -Part B - http://www.youtube.com/watch?v=081qXS-jSJk

Video - Test Data -Part C - http://www.youtube.com/watch?v=sBBZKZpd0oI

Video - Test Data -Part D - http://www.youtube.com/watch?v=R279brttGKw