Simply Explained

Cryptography

Cryptography is the science of writing in secret code. It uses ciphers to transform plain text into disguised text. Types of ciphers Caesar cipher This method uses alphabets shifted to the left by one alphabet. eg. hello => ifmmp      2. Atbash cipher This method uses reverse alphabetical order to cipher plain text. eg.… Read More Cryptography

Simply Explained

Virtual Memory

A process is what we usually call a program. Each process gets its own memory sometimes called virtual memory. Usually, it’s known as a process address space. Since each process has an isolated, distinct address space, a crash of one process will not bring down other processes. When virtual memory allocates more space for the… Read More Virtual Memory

Simply Explained

E-business Models

There are four generic business webs or e-business models which are used by various companies.        1. Aggregation The Aggregation business web enables the flow of goods and services from the producers to its customers through an aggregator creating value for both. For example, Egg Financial services which offer insurance, mortgage, credit card and… Read More E-business Models