ISO Certified 9001:2008

Website: www.batracomputercentre.com Ph.no.: 9729666670

Email ID : info.jatinbatra@gmail.com

BATRA COMPUTER CENTREISO Certified 9001:2008

INTRODUCTION TO COMPUTER

• Computer hardware is made up of the equipment used to make up you computer unit. These parts include your monitor, central processing unit (CPU), keyboard, mouse, printer, and modem. The computer is an electronic machine that performs the following four general operations: Input.

COMPUTER

MONITOR

MOUSEKEYBOARD

CPU

Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘computer’, this means to calculate or programmable machine. Computer can not do anything without a Program. It represents the decimal numbers through a string of binary 

Computer Organization

Computers are used daily in schools, hospitals, banks, government offices and many other businesses. In addition, individuals use computers daily to communicate by means of social media.

USED IN SCHOOLS

SCIENTIFIC LABS

USED IN HOSPITALS

USED IN BANKS

USED IN OFFICES

USED AT AIRPORTS & RAILWAY STATIONS

TYPES OF COMPUTER

1. Supercomputer.2. Mainframe

Computer.3. Minicomputer.4. Microcomputer.

A supercomputer is a computer that performs at or near the currently highest operational rate for computers.  Traditionally, supercomputers have been used for scientific and engineering applications that must handle very large databases or do a great amount of computation (or both). Although advances like multi-core processors and GPGPUs (general-purpose graphics processing units) have enabled powerful machines for personal use (see: desktop supercomputer, GPU supercomputer), by definition, a supercomputer is exceptional in terms of performance.

2.Mainframe ComputerA data processing system employed mainly in large organizations for various applications, including bulk data processing, process control, industry and consumer statistics, enterprise resource planning, and financial transaction processing.Mainframes use proprietary operating systems, most of which are based on Unix, and a growing number on Linux. Over the years they have evolved from being room-sized to networked configurations of workstations and servers that are an extremely competitive and cost effective platforms for e-commerce development and hosting. Mainframes are so called because the earliest ones were housed in large metal frames.

3.MinicomputerA minicomputer fills the space between the mainframe and microcomputer, and is smaller than the former but larger than the latter. Minicomputers are mainly used as small or midrange servers operating business and scientific applications. However, the use of the term minicomputer has diminished and has merged with servers. 

A minicomputer may also be called a mid-range computer.

4.MicrocomputerA microcomputer is a complete computer on a smaller scale and is generally a synonym for the more common term, personal computer or PC , a computer designed for an individual. A microcomputer contains a microprocessor (a central processing unit on a microchip ), memory in the form of read-only memory and random access memory , I/O ports and a bus or system of interconnecting wires, housed in a unit that is usually called a motherboard .

Networks

Our computers are on a network here at school...Look under the table and see the blue wires that connect your computer to the network.

The computers are connected together using copper phone wires, fiber optic cables, or radio waves.

The internet is many networks around the world that are all connected together to make 1 huge network.

A network is a group of computers that share information and hardware.

PARTS OF COMPUTER

Computer hardware is made up of the equipment used to make up you computer unit. These parts include your monitor, central processing unit (CPU), keyboard, mouse, printer, and modem. The computer is an electronic machine that performs the following four general operations:

InputStorageControl Processing UnitOutput.

1.Inputthis is the process of entering data and programs into the computer system.The primary devices used are the keyboard and mouse.

Keyboard - The keyboard looks like the typewriter. A numeric keypad is located to the right of the keyboard. Numeric keys have the same placement as a 10-key calculator, which allow the operator to enter data rapidly.Mouse - A computer mouse is an input device that is most often used with a personal computer. Moving a mouse along a flat surface can move the on-screen cursor to different items on the screen. Items can be moved or selected by pressing the mouse buttons (called clicking).

MOUSE

KEYBOARD

INPUT DEVICES

2.StorageStorage devices are both input and output devices in one. A storage device is a place to keep data that has been processed so that it can be retrieved at a later time to be used again.

Hard DiskFloppy DiskCD’s, DVD’sMagnetic TapeFlash Memory, Jump Drive

The process of input, output, processing and storage is performed under the supervision of a unit called 'Central Unit'. It decides when to start receiving data, when to stop it, where to store data, etc. It takes care of step -by-step processing of all operations in side the computer.

Processing Unit

4.OUTPUTThis is the process of producing results from the data for getting useful information. The ALU and the CU of a computer system are jointly known as the central processing unit (CPU). You may call CPU as the brain of any computer system. Example: Visual Dis play Unit (VDU), Printer, Plotter, Floppy Disk Drive, Magnetic Disk Drive, Speaker, Pen Drive, etc.

OUTPUT DEVICES

SOFTWARESoftware is the programs and applications that tell

the computer what to do and how to look.

Computer programmers write the codes/instructions that make-up software applications/programs.

HTML is a type of computer programming language that allows programmers to make web pages.

The next 2 slides show what HTML codes look like and the web page the codes produce.

1.APPLICATION SOFTWARE

2.SYSTEM SOFTWARE

Application software is a program or group of programs designed for end users. These programs are divided into two classes: system software and application software. While system software consists of low-level programs that interact with computers at a basic level, application software resides above system software and includes database programs, word processors, spreadsheets, etc. Application software may be grouped along with system software or published alone.Application software may simply be referred to as an application.

Application Suite: Has multiple applications bundled together. Related functions, features and user interfaces interact with each other.

Enterprise Software: Addresses an organization's needs and data flow in a huge distributed environment.

Enterprise Infrastructure Software: Provides capabilities required to support enterprise software systems.

Information Worker Software: Addresses individual needs required to manage and create information for individual projects within departments.

Content Access Software: Used to access contents and addresses a desire for published digital content and entertainment.

Educational Software: Holds contents adopted for use by students. Media Development Software: Addresses individual needs to

generate and print electronic media for others to consume.

Systems software includes the programs that are dedicated to managing the computer itself, such as the operating system, file management utilities, and disk operating system (or DOS). The operating system manages the computer hardware resources in addition to applications and data. Without systems software installed in our computers we would have to type the instructions for everything we wanted the computer to do!

Examples would be: DOS, Windows 95, 98, ME, NT, XP,

Vista, Windows 7Unix, Linux, MAC system OS 6,7,8,9,10

Command Line Operating Systems

DOS is an example of a command line operating system.

On the next slide, Notice that there are no:

Icons (pictures)ColorsMouse PointerButtonsYou have to memorize commands in order to use

this text based operating system.

Operating Systems: GUIGUI stands for Graphical User Interface

Uses pictures (icons) to represent files, folders, disk drives, modems, printers, etc.GUI’s were created to make using a computer easier, more interesting, non-threatening to inexperienced users.A mouse allows users to point at something and click to make it work. With command line you have to have all of the commands to make your programs work. Here is an example of a GUI

NotepadWordPadMS OFFICE 2010, 2013 [ Word,

Excel, Power Point]Internet [Gmail, Facebook,

Twitter]Online Form FillingBill paying, Mobile Recharge,

Shopping [LinkedIn, Printer rest]Window Installation, Software

Up-loadation

IntroductionFunctionControl Statements

Arrays & Strings

Pointers, Structure & Union

IntroductionClasses,

ObjectsInheritanceConstructor &

DestructorFunctionPointers

StructureArrays &

AsringsStructures,

Union

HTMLJavaScriptDreamweaver /

Notepad++Corel DrawCSS & CSS3

Core PhpSQLServer Control

StructuresSessionCookies

Server UploadingWorking on (Responsive,

Creative, E-Commerce Website)

Title Meta TagExternal LinksOfficial BlogsWeb 2.0 Blogs

Search Engine BasicKeyword ResearchBest On-Page SEO

TricksRole of Word PressDomain SelectionSocial media

ImportanceAnchor Text

MessagesBlack Hat Vs White

Hat Local Place

Address: SCO 15, Dayal Bagh, Near Hanuman Mandir, Ambala Cantt- 133001 HaryanaPh. No.: 9729666670, 4000670Email-ID: info.jatinbatra@gmail.comWebsite: www.batracomputercentre.com