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Now consider the following spreadsheet:
Formula in cell D2 is = (B2/C2)
Replicating this formula (by highlighting then drag down to D7) gives all the formulas needed in cells D3 to D7
Formula in D8 (to find average) can be done in 3 ways:
= AVERAGE (C2:C7) or
= SUM (C2:C7)/6 or
= (C2+C3+C4+C5+C6+C7)/6
Formula in D9 to find out maximum value in column is = MAX (C2:C7)
- Problems associated with spreadsheets:
- Capacity (that implies maximum number of columns and rows) can be limiting when dealing with large data sets
- Security issues in some spreadsheets (it implies if you can open a spreadsheet you can also change any part of it; this can lead to fraud
- lack of concurrency; generally only one person can work on a spreadsheet at any given time (databases are better in this aspect as they can usually be opened by more than one user at a time)
- Due to their structure it's easy to enter an error (whether on purpose or by mistake) by entering data in the wrong cells or dependencies among cells incorrectly applied.
Explain MDR and MAR. The data and address lines of the external memory bus linked to the internal processor bus by the memory data register, MDR and the memory address register
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What are RIMM? RDRAM chips can be assembled into larger modules known as RIMM. It can hold up to 16 RDRAM
Learning Weights in Perceptrons In detail we will look at the learning method for weights in multi-layer networks next chapter. The following description of learning in percept
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