Tuples in Python

Tuples are used to store multiple items in a single variable. Tuples are the collection of items. It is immutable. Tuples are written with round brackets. Accessing the elements of tuple Tuples are immutable You cannot change the elements in tuple. Finding number of items in a tuple We can…

Quicksort in Python

Quicksort is an algorithm based on divide and conquer approach in which the array is split into subarrays and these sub-arrays are recursively called to sort the elements. How Quicksort Works? Step1: A pivot element is chosen from the array. You can choose any element from the array as the…

Insertion Sort in Python

This is an in-place comparison-based sorting algorithm. Here, a sub-list is maintained which is always sorted. For example, the lower part of an array is maintained to be sorted. An element which is to be ‘insert’ed in this sorted sub-list, has to find its appropriate place and then it has…

VLookUP in MS Excel

The VLOOKUP function performs a vertical lookup by searching for a value in the first column of a table and returning the value in the same row in the index_number position. The VLOOKUP function is a built-in function in Excel that is categorized as a Lookup/Reference Function. It can be used as a worksheet function…

Mail Merge in MS Word

Mail Merge is a useful tool that allows you to produce multiple letters, labels, envelopes, name tags, and more using information stored in a list, database, or spreadsheet. When performing a Mail Merge, you will need a Word document (you can start with an existing one or create a new one) and a recipient…

Management Information System (MIS)

MIS is made up of three words: Management, Information and Systems. MIS is a system consisting of people, machines, procedures, databases and data models as its elements. Role of MIS in organization similar to role of heart in the body. Information is blood & MIS is heart. Data– raw facts,…

Water Fall Model

SDLC (Software Development Life Cycle) Systems development – activities that  produce solution to organizational problem/opportunities. Developing Information System solution- a multi-step, iterative process called System Development Life Cycle (SDLC ). Waterfall Model Requirement Analysis and Specification Phase The goal of this phase is to understand the exact requirements of the…

Selection Sort in Python

Selection sort is a simple sorting algorithm. This sorting algorithm is an in-place comparison-based algorithm in which the list is divided into two parts, the sorted part at the left end and the unsorted part at the right end. Initially, the sorted part is empty and the unsorted part is…