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Manipulate the following Boolean expression in such a way so that it can be implemented using exclusive-OR and AND gates only. AB''CD'' + A ''BCD'' + AB''C''D + A''BC''D
Spreadsheet Software : Consider the grid in Fig. 9.4. It is split into rows and columns and is a pictorial representation of a typical spreadsheet program. Figure: Spr
Previously two sections the fundamentals of the workings and architecture of the central processing unit has been explained. There has been a common look at easy processor architec
1.Add a Validation Rule for Date of Birth so no one under the age of 18 can be added to the table. Hint: subtract the DOB from today''s date and divide by 365.25 (watch the parenth
File Organization There are three types of file organization used in practice. Let us consider the example of a dictionary. The dictionary contains listing of English wo
Question 1: (a) Describe the three ways of classification of Database management systems (DBMS). (b) Why are System Analysts and Database Administrators needed in compa
Question 1 Define the concept of equivalence relation. Give atleast two examples of equivalence relation Question 2 Prove that a graph G is connected if and only if it has a
Desktop computer: Desktop computer is popularly known as personal computer (PC). As the name suggest, it is generally small in size and fitted on the top of a desk which can b
Disadvantages of Manual Records More manpower is required to record/storelretrieve the data. Bulky paper records take up more space and this problem increases with
Access time: Access time: This is the time required to locate and retrieve stored data from the storage unit in response to a program instruction. That is the time interval be
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