Html coding for table

S.No.	Name
001	Pooja
002	Neha

Microsoft office

           MICROSOFT  Office

It is a word processing software it is developed by Microsoft and is passed on Microsoft office it enables you to create edit and save professional document like letter ,reports ,etc,.

Brief history

Microsoft word office is released in 1983 as multiple tool words. It's first version was based on the framework of Bravo which was world first graphic program.

Microsoft office button

Microsoft office button is located on the top corner of window . It is a new user interface feature that replace the traditional file menu.

When you click the button it offers a list of commands to perform different task which are open ,save ,save as, print, prepare ,send , publish and close this command are described below the following_________ 

Open

Open command  allow you to open an existing file on the computer.

Save

Is used to save a file after completing the work . We can save  images or text documents.

Save as

This command helps you save a new file with a desired file name to a desired location on the hard drive.

Print

Print command is used to print a hard copy of any document.

 Prepare

This command allow you to prepare the document for distribution, i.e. you can view and edit the document properties and inspect the hidden meta data.

Send

On this command we can share any file or documents to anywhere.

Publish

On this command  we can publish any documents , images or videos in front of whole people i.e. you can create a blog with the content of the document.

Close

By using close command we can closed any currently open file.

Quick access toolbar

Access toolbar line next to the Microsoft office button it is a customisable toolbar that comes with a set of independent come on it gives you give access to commonly used commands such as save, undo ,redo ,etc.

When you click the drop-down arrow next to the toolbar it offers more commands with a left click you can add any of these commands with a left click you can add this commands to quick access toolbar you can also remove the commands added to the toolbar the index indent spacing for individual styles and other features that appeared on the ribbon cannot be added to quick access toolbar . 

Moving with key

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Computer basic part 4

 Computer input device

Keyboard 

mouse

 joystick

Light pen

 trackball 

scanners 

graphic tablet 

microphone 

magnetic ink card reader (MICR )

optical character reader (OCR)

bar code reader(BCR)

 optical mark reader (OMR)

Keyboard

It is the most common and very popular input device which helps to input data to the computer.

 keyboard are of  two sizes 84 keys or 101/102 keys, but now keyboards with 104 keys or 108 keys are also available for windows and internet.

S.No.              keys and Description

1.                       Typing keys

                   These keys include the letter keys 

                  (A-Z) and digit keys (09) which                               generally give  the  same of typewriter.

2.               Numeric keypad

                It consists of a set of 17 keys .

3.              Function keys

                The  twelve function keys are present                   on the keyboard which are arranged in                   row at the top of the keyboard.

4.            Control keys

               It includes four directional arrow keys                 Control keys also include home , end ,                    insert, delete, page up , page down etc.

5.            Special Purpose keys

              Keyboard also contains some special

             purpose key such as enter,shift , caps                    lock,Num Lock, space etc.

Joystick

It is also a pointing device which is used to move the cursor position on a monitor screen it is a stick having a spherical ball at its both lower and upper ends it mainly used in Computer aided designing si a Di and playing computer game

Light pen 

Light pen is a pointing device similar to a pain.

Trackball

Trackball is an input device that is mostly used in notebook or laptop computer.

Scanner

Scanner is an input device which work more like a photocopy machine .

Microphone

It is an input device to input sound that is then store in digital form.

Magnetic ink card reader (MICR)

It is generally used in bank as there are large number of cheques to be processed everyday.

Optical character reader  ( OCR)

It is an input device used to read a printed text.

Barcode reader

It is a device used for reading barcoded data (data in the form of light and dark lines).

Optical mark reader

It is a special type of optical scanner used to recognise the type of all mark made by pen or pencil.

Computer output

 Monitor common called as visual display unit are the main output device of the computer .

There are two kinds of screen used for monitor

 Cathode ray tube

 Plat pannel display 

Cathode ray tubes (CRT )

The CRT display is made of  small pixels element called pixels . The smaller the pixels  the better  image resolution .

Plat pannel display monitor

 It refers to a class of video device, that have reduced volume weight . Requirement of composition to the CRT.  Current used of FPD  include computer, video game, laptop, calculator , monitor and graphic displayed.

 printer 

printer is an output device which is used to print information on paper.

 There are two types of printers:-----

 impact printer 

 non impact printers

impact printer 

It print the character by striking them on the ribbon which is them based on the paper.

 Non impact printer

 It print the characters without using the ribbon. This printer print a complete page at a time.

These printer are of two types :----

lasser printer

 Inkjet printer 

Lasser printer 

these are non impact page printer. They are used lasser  light to produce the dot needed on the character to be printed on the page.

 Advantages

 very high speed 

very high quality output

 good graphics qualities

 Inkjet printer 

inkjet printer are non impact printer based on new technology.

 Advantages 

high quality printing

 Computer memory 

A memory is just like a human brain.  It is used to store data and instruction .

Computer memory is the storage space in the computer.

 the memory is divided into large number of small parts for cell.

 memory is of three types 

cash memory

 primary and main memory 

 secondary memory

 cash memory

 it is a very high speed semiconductor memory which can speed up the CPU.

 It act as a buffer between the CPU and the main memory.

The part of data end program are transferred from the display.

 Advantage

 It store the data for temporary use.

 It is the faster than the main memory.

 disadvantage 

It has limited capacity

 It is very expensive 

Primary memory and main memory

 It holds only those data and instruction on which the computer is completely working. It is divided into two sub category is RAM and ROM .

Secondary memory 

 This type of memory is also known as external memory or nonvolatile. It is slower than the main memory . These are used for storing data information permanently, the content of secondary memory are the first transfer to the main memory and then the CPU   can access it .

example 

 CD -ROM ,CD- ROM,  DVD

RAM ( random access memory )

RAM is internal memory of the CPU for storing data program and program result. It it is volatile that is data store  in it is lost. When we switch off the computer or  if their is power failure. RAM is  small both in terms of its physical size and in the amount of data it can hold .

RAM is of two type :----

Static RAM(SRAM)  

Dynamic RAM (DRAM)

 Static  RAM 

It indicate that the memory is content as long as power is being supplied . Data is lost when the power gets down due to volatile nature .

 dynamic RAM

dynamic RAM unlike  SRAM must be continued refresh in order to maintain the data . It is used for most system memory as it is cheap and  small.

  Read only memory (ROM )

 This memory from which we can only read but it cannot write on it. This type of memory is non volatile .

This information is store permanently in such memory during manufacture.

 Types of ROM 

 MROM (mask  ROM)

PROM (programmable ROM)  

EPROM 

Advantages of ROM

 1. Non- volatile in nature.

 2. Cheaper than RAM 

3. Easy to test

 4. Static and do not require refreshing 

5. Content are always known and can be verified.

Basic of computer

        

                     💻🖥️🖥️🖥️🖥️

   Computer -Input Device

# Keyboard ⌨️

# Mouse 

# Joystick 🕹️

# Light pen 🖋️🖊️🖋️

# Track Ball 

# Scanner

#  Graphic tablet

# Microphone 🎤🎙️

#  Magnetic Inc Card Reader ( MICR )

# Optical Character Reader ( OCR )

# Bar Code Reader

# Optical Mark Reader (OMR)

                        Keyboard

It is the most common and very popular input device which helps to input data to the computer.

Keyboard are of two sizes 84 keys or 101/102 keys , but now keyboard with 104 keys or 108 keys are also available for windows and internet.

                        Joystick

 It is also a pointing device which is used to move the cursor position on a monitor screen. It is a stick having a spherical ball at its both lower and upper ends. It mainly used in computer Aided Designing ( CAD ) and playing computer game.

                        Light pen

It is a pointing device similar to a pen.

                         Track Ball 

It is an input device that is mostly used in notebook or laptop computer.

                         Scanner

It is an input device, which works more like a photocopy machine.

                          Microphone

It is an input device to input sound that is then store in distal form.

                           Magnetic Inc Card Reader

It is generally used in bank as there are large number of cheques to be processed every day.

                           Optical Character Reader

It is input device used to read a printed text.

                           Bar Code Reader

It is the device used for reading bar code data ( data in the form of light and dark lines).

                     Optical Mark Reader

It is a special type of optical scanner used to recognise the type of mark made by pen or pencil.

Basic of computer part 3

💻 🖥️🖥️🖥️🖥️🖥️💻

 Disadvantages of computer

# No IQ

∆ A computer is a machine that has no intelligence to perform any task.

∆ Each instruction has to be given to the computer.

∆ A computer can not take any decision.

# No feelling

∆ It can not make judgement based on feeling, test experience and knowledge unlike humans.

∆  Computer have no feeling or emotions.

#  Environment

The operating environment of the computer should be dust free .

# Computer generation

S.no.                 generation      discription

1.                        1946-1959        Vaccum tube                                                                 based

2.                         1959-1965       Transistor based

3.                         1965-1971          Integrated                                                                     circuit

4.                          1972-1980        VLSI                                                                              microprocessor

5.                          1980- onwards    ULSI                                                                            microprocessor

# Computer Components

Operation                Description

1. Take input.              The process of  enter the                                         data and instruction into                                           the computer system.

2. Store data.             Saving data and                                                           instruction so that they are                                       available for processing as                                     and when required.

3. Processing.          Performing arithmetic and                                      logical operations on data in                                  order to convert them into                                        useful information.

4. Output information.       The process of                                                            producing useful i                                                information or result for                                           the user such as a printed                                         report or display.

Basic of computer part2

💻🖥️💻🖥️🖥️💻🖥️

Part 2

                          Basic of computer

Advantages of computer:-

* High speed

* Storage

* Accuracy

* Automation

* Reduction in paper work and cost

# High speed  

*  Computer is a very fast device

* The computer have unit of speed in micro second/ nanosecond

* It can perform million of calculation in few seconds

               

# Storage

* Computer has much more storage capacity than human beings

* It can store large amount of data

* It can store any kind of data such as video, audio, images,text,etc

* Memory is very important of computer

# Accuracy

* The calculation are 100% error free

* Computer perform all jobs with 100% accuracy provided

#  Automation

Computer is automation machine

#Reduction in paper work and cost

* The use of computer for data processing in the organization leads to reduction in paper work and results in speeding up the process.

* As the data in electronic files can be retrieve as when required, the problem of maintenance of large number of papers file gets reduce.

Basic of computer

                       

   

Computer

Computer:-  computer is an advanced electronic device i.e., raw data as an input from the user and process.

Full form of computer :-

C   = common

O  = operating

M = machine

P = purposely

U = used for

T = technological and

E = education

R = reasearch

Benefits of using computer :-

Increase your productivity

Connect to the internet

Storage

Organised data and information

Functions of computer

∆ Take data as input

∆ Storage the data/ instruction

∆ Process the data and convert it into the information