Lesson Objectives:
L/O1 - identify the need for RELIABILITY and REDUNDANCY in computing
L/O2 - describe how a system can be made more RELIABLE
Starter
What is a CRITICAL system?
With a partner, discuss what you think is meant by a CRITICAL system
Main Task
What can go wrong? What are the consequences?
1. Make a list of all the things that can go wrong with a Computer System.
eg. power cut
Add your ideas HERE
How do companies prevent this from happening?
2. Research how big companies ensure these things do NOT happen and add to your blog under Theory - Reliability & Redundancy
Extension
How is a computer systems reliability measured?
Plenary
In pairs:
PERSON 1- Imagine you are an irate customer/user of a system that is not working and you have phoned to complain
PERSON 2- Imagine you are in charge of the computing system that is failing and you have to reassure the user/customer that you are working hard to fix the problem (tell them 3 measures you are putting in place)
KEYWORDS
Critical System, Reliability, Redundancy, Back Up
With a partner, discuss what you think is meant by a CRITICAL system
Main Task
What can go wrong? What are the consequences?
1. Make a list of all the things that can go wrong with a Computer System.
eg. power cut
Add your ideas HERE
How do companies prevent this from happening?
2. Research how big companies ensure these things do NOT happen and add to your blog under Theory - Reliability & Redundancy
Extension
How is a computer systems reliability measured?
Plenary
In pairs:
PERSON 1- Imagine you are an irate customer/user of a system that is not working and you have phoned to complain
PERSON 2- Imagine you are in charge of the computing system that is failing and you have to reassure the user/customer that you are working hard to fix the problem (tell them 3 measures you are putting in place)
KEYWORDS
Critical System, Reliability, Redundancy, Back Up
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