Information and communication

technologyBy ZFHH

Specific Learning Objectives• Describe the components of information technology• Explain briefly the transmission of electric signals through wires, radio

waves through air,ligh5t signals through optical fibres• Describe function and use of fax machines, cell phone ,photo phone and

computer• Make a list of uses of email and internet• Describe the use of information storage devices such as audio cassettes,

video cassettes, hard discs ,floppy ,compact discs, and flash drive• Identify the functions of word processing, data managing, monitoring

and controlling

Information technology Information and communication

technology is defined as the scientific methods and means to store, process and transmit vast amounts of information in seconds with the help of electronic equipments.

Facts and figures

Machinery Computer programs

Set of instructions and rules

Those who operate and design soft wares

Transmission of electric signals through wires

Transmission of light signals through optical fibers

Working and use of different communication devices

Photo phoneIt works like a ordinary telephone

except

Cell phones

Fax machineA fax machine basically scans a page to convert its text and graphic into electronic signals and uses a printer to create a copy of the message that was sent.

ComputerComputer is an

electronic computing device. It works with the interaction of hardware

and software. Computers play an

important role in our daily life. For preparing documents, for advance

booking, diagnosis of diseases, weather

forecasting and building designing etc.

Uses of email and internet

Storage devices

Audio cassettes

Video cassettes

Hard discs

Floppy

Compact discs

Flash drive

• Primary storage device

• Rigid• magnetically sensitive

disc that spins rapidly and continuously inside a computer

• Based on magnetism• Consist of a tape of

magnetic material• Pictures are recorded

with sound

• Based on magnetism• Consist of a tape of magnetic

material • only for sound storage • Electronic

based device• Data storage

ICs• Used to

transport files

• Laser technology

• Molded plastic disc

• Digital data can be stored• Magnetic disc

• Digital medium• Inexpensive ,convenient,

reliable

Word ProcessingFunctions of word processing are1. For writing a letter ,article ,book or report2. For seeing a document on screen3. For editing documents4. For moving text from one page to another5. For storing documents and printing them6. For using different styles and graphics in

our documents

Data Managing , Monitoring And Controlling

Functions of data managing (monitoring and controlling)1. To collect all information regarding a subject

and to store them in a computer2. For the improvement of the management in

institutions3. For recording the detail of products in big

departmental stores4. For placing orders of goods in large quantity

Thank you