IGCSE ICT Chapter 6

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more interesting than a presentation done on slides or paper; used with a multimedia projector so the whole audience can see the presentation; use of sound and animation/video effects

Advantages of using a multimedia presentations as a communication application

surveys address lists clubs and society records school reports • school libraries

Identify at least 3 data handling application

1. Magnetic Ink Character Recognition (MICR) 2. Optical Mark Recognition (OMR) 3. Optical Character Recognition (OCR) 4. Radio Frequency Identification Device (RFID)

Identify the 4 types of recognition systems

1. Global Positioning Systems (GPS) 2. satellite navigation 3. Geographic Information System (GIS) 4. media communication systems

Identify the 4 types of satellite systems

A system which can read characters printed in magnetic ink (e.g. characters on the bottom of a cheque).

Magnetic Ink Character Recognition (MICR)

A system that takes scanned text and converts it into computer readable form so it can be used in a word processor and other applications software.

Optical Character Recognition (OCR)

A system which can read marks written in pencil or pen on a paper - used to read answers on questionnaires, multiple choice exam papers, etc.

Optical Mark Recognition (OMR)

Voice over Internet Protocol; The use of the internet to send voice data in the form of digital data packets using internet protocols.

VoIP

websites

advertising and communication, used rather than print

animation produced using computer hardware and software

cartoons

turtle graphics, automatic washing machines, automatic cookers, computer controlled central heating systems, burglar alarms, computer controlled glasshouse

computer control in applications

produced using word processor, DTP, photo editing software

flyers and brochures

produced using a software package, often a word processor or a desktop publisher (DTP)

flyers and posters

paper-based presentations

hard-copy format produced using a computer and printed

telephony

having a telephone conversation via the internet

scientific experiments weather stations measuring a patient's vital sign on a hospital pollution monitoring burglar alarm systems

identify at least 3 measurement applications

describe the financial advantage of using VoIP

it is free or at a local rate to anywhere in the world

a printed heading on stationery stating a person's or organization's name and address

letterhead

sound quality, security (identity and service theft, viruses and malware, spamming)

main problems with using VoIP

generation of music and production of music scores using computer systems with the appropriate software

music scores

describe the technical advantages of using VoIP

no need for a phone; usable anywhere with an internet connection; can be used while using other applications

multimedia presentations

presentations using animation, video and sound/music

Advantages of using a website as a communication application

sound/video/animation, hyperlinks, buttons for navigation

use of mobile phones for communication

text messaging phone calls

identify areas where booking systems are used

travel industry theatre and cinemas

even though the video quality when using VoIP is not very good, how can it be improved?

tweaking router settings to make it more favorable for VoIP applications


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