admin The primary functionality of each computer registers is given below. Each register is related to other in such a way that it pass instructions code or data to other registers. Computer Registers Organization The registers work together and they are organized in a particular way. See the figure below to understand their relationship. Each of … Read more
Sequential Circuits have a memory element in addition to a combinational circuit so it remembers one bit of information. If a sequential circuit uses a clock pulse, then it is called “Clocked Sequential Circuit”. There are two types of Sequential Circuits, Synchronous Sequential Circuits Asynchronous Sequential Circuits In synchronous sequential circuits the memory or the … Read more
The adder is a combinational circuit that add binary digits for arithmetic computation. A combinational circuit is a kind of digital circuit that has an input, a logic circuit and an output. For variables, there are combinations of input variables and for each input combination, there is one and only one output. Therefore, output from … Read more
Constraints are like rules in relation so that you cannot violate them. There are plenty of constraint types that we use. In this article, we will add a check constraint and delete it from a relation. The general process to add or remove a constraint from a Relation is as follows. STEP 1: In this … Read more
We use SELECT-FROM-WHERE kind of statement to run queries that get us specific rows from a relation. In the select statement, WHERE is the condition that returns specific rows from a relation. What if we want to group the information? The GROUP BY and HAVING clause helps you to group the resultant rows by a … Read more
JOIN put condition (selections and projections) on a CROSS-PRODUCT from two or more tables and the result is a smaller relation than the CROSS-PRODUCT In DBMS, JOIN is an important operation in relational algebra and it extracts useful information from joining two or more relations. In this lab, you will create two tables TEACHER and … Read more
In this post, you will learn example problems from combinational circuits. These problems help in minimizing Boolean functions and constructing logic circuit diagrams. The solution to the problems are given in step-by-step manner with explanation wherever possible. Q1. Simplify the Boolean function using K-MAP technique. There are 4 variables in this function. First, we construct … Read more
A Boolean function is expressed in two form. Sum of Minterms Product of Maxterms Sum of Minterms x’ y’ z , x y’ z’ , x y’ z , x y z’ , x y z , gives 1 as output in the above Truth Table. Literal – x, y, A, b etc is … Read more
The function is F and it’s complement is F’. Suppose there is a function as follows F = x’ y z’ + x’ y’ z We can find the complement of the function using two rule stated by DeMorgan’s Law. Now, we will apply the above two principle in F to obtain F’. F’= (x’ … Read more
In this post, I am going to introduce you to the concept of exponential functions. A function that use exponents is the exponential function and it has many uses while calculating growth. You can determine, how fast something is growing with these kinds of functions. When it comes to calculating growth of something like population, … Read more
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