IGCSE ICT Chapter 6
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