Internet and its service

 Dear all,

          Here some topics are related to internet and its service.

Comments

Post a Comment

Popular posts from this blog

Computer Basic

  The word “computer” comes from the word “compute”, which means to calculate”. Charles Babbage is known as the ' Father of computer' .  A computer often referred to as a “data processor” because it can store, process, and retrieve data whenever desired.  The activity of processing data using a computer is called data processing.    Data processing consists of three sub activities:- (1)          Capturing input data (2)          Manipulating the data and (3)          Managing output results. Data : - Data is raw material used as input to data processing. Data can be anything like numerical, non-numerical or a mixture of both. Information : - Information is processed data obtained as output of data processing. Computer: - A computer is an electronic device which performs numerical calculation and logical calculation at high speed and produces information that are expressible in numerical as well as in logical form. Computer Stands For       C = Common
Read more

Character Set and Tokens in Python

Image
  Character Set : Character Set in Python consist of  valid characters such as alphabets, digits or special characters that are recognized by the library of Python Language. Alphabets:                         A,B,......Y,Z or a,b,.......y,z. Digits:                               0,1,2,3,4,5,6,7,8,9 Special Character:      ~!@#$%^&*()_+{}[];:'"\,./<> etc. White spaces    :             Blank space, new line, etc. Token: The smallest individual unit in a program is referred as 'Token'. It is also called Lexical Element or Lexical Unit. It can be categorized as: 1. Keywords : Keywords are the reserved words that has specific function in a program. These words are used while writing program to get desired output. The keywords are executed  as its purpose/action is already explained inside the language interpreter. All Keywords are written in lower case. Keywords are also called 'Reserved Words'. There are 33 keywords in Python. 2. Identifiers : Identi
Read more

DATABASE INTRODUCTION

Database : A database is an organized collection of related information in which facts are properly arranged and stored.  A database is made up of a basic unit called “Table”.  A table is made of different ‘Fields’ and ‘Records’.  Record : Collection of organized data or related facts is called Record.  Field : A field is a collection of same data types.  DBMS (Database Management System): A database Management System is a tool for managing and manipulating information of a database.  The main Functions of a DBMS is:  Creating Database.   Adding Records.  Modifying Records.  Displaying Records.   Storing Records.   Deleting Records.   Generating Reports.   Printing Reports.  Some Example of DBMS: MS Access, My-SQL,etc.  Features of DBMS: DBMS ensures data security. DBMS facilitates the sharing of data among different database. DBMS controls data inconsistency to a large extent. DBMS reduces the data redundancy to a large context. Data Consistency : Data consistency means that if any c
Read more