Specifications

2.3. DATA PROCESSING AND STORAGE
Figure 2.3: Existing system: Power supply and backup system
• The backup system consumes much more space than it needs to.
• Excessive heat is generated in the non-ventilated enclosure.
• Reliance on the mains AC power source has prevented the system from
being moved to a more useful location where there is no power outlet.
• The backup system is expensive to purchase and operate.
2.3 Data Processing and Storage
Originally, the system was based on a desktop-type personal computer which
stored all records in volatile memory. Due to the system’s short backup
period, the frequency of power-outages, and instability caused by heat generation
within the enclosure, this was quickly identified as problem. Mr Andrew
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