computers in apparel industry by suvitha

Computers in the

Textiles Industry

WHAT IS A COMPUTER? A computer is a programmable machine with two principal

characteristics:

• It responds to a specific set of instructions in a well-defined manner.

It can execute a prerecorded list of instructions (a program).

MODERN COMPUTERS ARE ELECTRONIC AND DIGITAL. THEY CAN BE DESCRIBED IN TERMS

THEIR HARDWARE AND SOFTWARE.

THE MODERN COMPUTER

A COMPUTER SYSTEM

Hardware Software User

Hardware

Software

User

HARDWARE

Hardware refers to objects that you can actually touch, like disks, disk drives, display screens, keyboards,

printers, boards, and chips.

SOFTWARE Software is set of programs (which are step by

step instructions) telling the computer how to process data.

Software needs to be installed on a computer, usually from a CD.

Softwares can be divided into two groups: - System SW - Application SW

SOFTWARE (CONTD.)

System Software It controls the overall operation of the system.

It is stored in the computer's memory and instructs the computer to load, store, and execute an application.

Examples: Operating System (OS), Translators DOS, Windows, Unix etc.

SOFTWARE (CONTD..)Application Software They are Softwares written to perform specific

tasks.

The basic types of application software are: word processing, database, spreadsheet,

desktop publishing, and communication. Examples: MSOffice, Tally, MSOutlook,

ADVANTAGES OF USING COMPUTERS

Speed: Computers can carry out instructions in less than a millionth of a second.

Accuracy : Computers can do the calculations without errors and very accurately.

Diligence : Computers are capable of performing any task given to them repetitively.

Storage Capacity : Computers can store large volume of data and information on magnetic media.

HISTORY OF EVOLUTION OF COMPUTERS

Two Eras: Mechanical Era (Before 1945) Electronic Era (1945 - )

Can be divided into generations. First Generation (1945 – 1954) Second Generation (1955 – 1964) Third Generation (1965 – 1974) Fourth Generation (1975 - )

TYPES OF COMPUTERS

On the basis of Computing Power & Size: Laptop / Palmtop Micro Computer / Desktop Mini Computer / Mainframe Super Computer

COMPUTER NETWORK A Computer Network is interconnection of

Computers to share resources.

Resources can be : Information, Load, Devices etc.

BENEFITS OF COMPUTER NETWORKS

Information Sharing Device Sharing Load Sharing Mobility Fast Communication Anywhere Anytime Banking

CPU ( CENTRAL PROCESSING UNIT)

• The central processing unit (CPU), also known as just a "processor”, is the "brain" of your computer.

• It contains various electronic circuits.

INPUT &OUTPUT DEVICES

VDU (MONITOR)

This is the television-like screen where the results of a computer's tasks are displayed.

Monitors come in all sizes, but most commonly they are either 15 or 17 inches (measured diagonally from one corner of the screen to the opposite corner).

KEYBOARD

The keyboard looks like a typewriter.

It contains all the letters of the alphabet, numbers and some special symbols.

It operates like a typewriter keypad, but instead of moving an arm, which strikes the paper, it sends an electronic impulse to the computer, which displays a character on the monitor.

• Its a device that is used to control the computer. A cable connects the mouse to the computer.

• When the mouse is moved on a pad, called a mouse pad, the cursor on the screen moves.

• A cursor is a small symbol displayed on the computer screen (normally a diagonal arrow that is used as a pointer) that shows you what the mouse is referencing on the screen.

MOUSE

PRINTER

A printer is designed to output information from a computer onto a piece of paper.

There are three kinds of printers: dot matrix, laser, and inkjet.

SCANNER

A scanner is a device used to copy an image off paper and convert it into a digital image, which can be saved as a computer file and stored on a hard drive.

Scanners can also use a special kind of technology called Optical Character Recognition (OCR) to read text from paper and save it as an editable document file

WHAT THESE COMPONENTS DO…

Power Supply – (heart) supplies power to all the circuitry and devices.

Motherboard – (body) acts as a manager for everything on the computer – connects all the other components together.

CPU – Central Processing Unit – (brain) this does all the work of computing.

WHAT THESE COMPONENTS DO…

RAM – Random Access Memory – (short-term memory) holds data and program instructions that the computer is currently using.

Hard Drive – (long-term memory) holds all of the information that needs to be stored between uses of the computer.

Floppy and CD-ROM drives – (mouth/ears) allow

you to give data to the computer and take data away from the computer.

WHAT THESE COMPONENTS DO…

Card Slots – (fingers) Allows other components to be added to the computer.

Video card – (face) Does all of the processing necessary to get stuff looking nice on screen, quickly.

Sound card – (vocal cords) Allows sounds from HD or CD-ROM to be played.

Network Card – (telephone) allows computer to talk to other computers over a wire.

MAJOR PERIPHERALS

Keyboard Mouse Hard Disk Floppy Disk CD ROM Printer Scanner Joystick

INTERNET

Internet is a huge network of computer networks. Internet provides many services:

Email World Wide Web (www) Remote Login (Telnet) File Transfer (FTP)

INTERNET BASED SERVICES

Email Telnet FTP Usenetnews World Wide Web (WWW)

COMPUTER APPLICATION IN APPAREL INDUSTRY

CAA CAD CAM CIM

Computer Systems

In industry, the key advantages of using computers are that they:

Provide an effective means of presentation

Reduce the time taken to create products

Improve communication

Reduce repetitive work

Decrease costs and increase efficiency

Examples of computer systems used in the textile industry include:

Computer Aided Administration (CAA) – computers are used for marketing, sales order processing and stock control.

Computer Aided Design (CAD) – computers are used for developing designs, pattern making, pattern grading, marker production and lay planning.

Computer Aided Manufacture (CAM) – computers are used for store design, lay planning and cutting, sewing and pressing.

Computer Integrated Manufacture (CIM) – a system that uses computers at every stage of planning, design and manufacture.

Electronic Point-of-Sale (EPOS) – a computerised system that speeds up sales transactions and monitors stock levels.

New Technology

Many companies take advantage of new technologies, such as:

Skype, instant messaging, video conferencing, blogging, E-retail, interactive design, networking sites, virtual imaging.

Virtual imaging can be used to show what a design will look like before it’s manufactured, for example:

•Fashion designers may use softwear like 3D Runway Designer to display their designs on virtual models

•Interior designers may use mapping softwear or specialist programs to create virtual interiors.

Examples of How computers is Used

The next two slides show how computers and other pieces of digital equipment may be used at various stages of design and manufacture.

Examples of How computers is Used

TEXTILE DESIGNING SOFTWARES

Wonderweaves Reach techonoligies Summagraphics Prostyle

GARMENT DESIGNING SOFTWARES

3D SCANNING

LASER SCANNING

PROJECTION OF WHITE LIGHT PATTERNS

IMAGE PROCESSING

WHOLE BODY MEASUREMENTS

DIGITAL TAPE

3D FIT GARMENT SIMULATION

DIMENSIONS OF THE SCANNED VIRTUAL BODY

PREPARATION THE 2D DRESS PATTERN FOR THE GARMENT SIMULATION

SIMULATION STEPS

MANNEQUIN IMPORT

DRESS STITCHING OPERATION

VIRTUAL MODELLING

DRAPING SIMULATION

CLOTH SIMULATION

CAM FOR APPAREL INDUSTRY

Plotting Spreading Cutting Sewing/Assembling Surface ornamentation

CIM FOR APPAREL INDUSTRY

CAD/CAM (Computer-aided design/Computer-aided manufacturing)

CAPP, (Computer-aided process planning)

ERP (Enterprise resource planning)

CAQ (Computer-aided quality assurance)