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Explain the method to identify the Object Classes
You would always be careful while identifying relevant object classes from application domain. Objects may include physical entities in a system like department, employees, buildings etc. Classes must make sense in application domain. At this phase you should avoid computer implementation constructs, such as subroutines and linked lists.
Several classes are implicit in application domain, so you need to find out by understanding problem well.
Consider the following instance of the Students relation, sorted by gpa. sid name login age gpa 53831 Madayan madayan@music 11 1.8 53832 Guldu guldu@music 12 2.0 53688 Smith smith
How many 128 × 8 RAM chips are required to provide a memory capacity of 2048 bytes. Ans. Available here RAM chips = 128 x 8 Required the memory capacity = 2048 x 8 No. of chip
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