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IGCSE Theory Notes Chapter 6 from "Cambridge IGCSE ICT (2nd Edition)"
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IGCSE ICT Chapter 6 NotesCommunication Application ADVANTAGES DISADVANTAGES
Flyers and Brochures Reaches target audience Annoying
Sent to many households Thrown away
Posters Eye-catching Short life span
Seen by many
Newsletters Sent out by companies to employees with local information
Websites Global audience Expensive maintenance
Easy to update Undesirable websites
Images, sounds, videos, etc. Hacks, virus, etc
Multimedia Presentation Interactive Focus on medium
Tailored to audience Expensive equipment
Video, effects, image Wi-Fi failure
Paper-based Presentation No need to be present Need to be distributed
Permanent copy Printing costs
Cartoons On computer, 3D skeleton is produced, moved by animator
with key frames. Difference in skeleton is calculated by
tweening/morphing software. Final stage is realistic image using
rendering.
Add humour and help send message across.
Business cards and Professionalism Thrown away
Letterheads Brand awareness
Advertising
Mobile Phones Allow access to internet on the move using ‘hot spots or a
cellular network which is towers inside many cells networked
together over large areas, allowing the transmission of data
throughout the network.
Computers/tablets can connect to network with plug-in device
of SIM card.
Internet Telephony: telephone Free or local rate Broadband ISP needed
conversation over the internet Webcam Sound quality – bad
(VoIP) – converts sound into Built-in mics or speakers Security risks
discrete digital packets which
can be sent to their
destination via the internet.
Data Handling Application ADVANTAGES DISADVANTAGES
Surveys Online Paper-based
Sent directly to database Checked by OMR/OCR: faster,
Quick and easy less errors, less expensive
Address lists Application stores information like address, phone numbers, etc.
Allows groupings and synchronisation
Clubs and Society records: Less time-consuming Buy computer and software
keep records of membership Easy check on membership Initial transfer of data
on database. Less space, errors
School Reports Keep track of academic performance using a database, then a
printed copy can be produced using mail merge.
School Libraries Computer control and involve barcodes and library cards.
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