WorksheetsICT Applications & System Life Cycle
Total questions: 50
Worksheet time: 36mins
Excel is an example of a modelling application
true
false
this sensor detects how far away objects are
proximity sensors
sound sensors
light sensors
infra red sensors
EFT stands for:
electronic funds transfer
email funds transfer
electronic files transfer
ATM stands for:
Automatic teller model
Automatic transfer machine
Automatic teller machine
Which of these are advantages of internet banking: You can pick more than one
People can spend more time doing other things.
Requires you to have a computer and Internet access to use it.
Can be done at anytime.
Which of these are disadvantages of internet banking: You can pick more than one
access to a world wide market.
Security issues like phishing and pharming.
easier to make errors.
Which device is used in EFTPOS?
MICR
OMR
Chip and pin reader
Give two advantages of email
Better for the environment – no waste of paper
Expectations – people may not read their email regularly
Permanent copy – there is a copy which can be used for reference compared to a telephone call
Needs a good broadband connection
Give two disadvantages of VoIP
Spam – you can receive a lot of nuisance emails
Low Initial Investment - To get started, you only need your existing Internet connection, a free VoIP software and a microphone (if not built in) start-up costs are negligible.
VoIP calls over computers or mobile devices may suffer from performance issues in case of poor hardware. A slow computer, for example, can affect your ability to load VoIP software, make calls and multi-task during calls.
Needs a good broadband connection
Give two advantages of Video Conferencing
Reliant on internet speed – connectivity speed may cause break ups in sentences
Reduce costs – no need for expensive travel
Reduced carbon footprint
Permanent copy – there is a copy which can be used for reference compared to a telephone call
A system which mimics the expertise of a professional is known as
Information System
Computer System
Expert System
Super System
Parts of expert system
Knowledge Base or Rule base
Inference Engine
Database
User interface
Website
The ability for an expert system to make decisions is based on which of the following?
Inference engine
Decision machine
What is a disadvantage of expert systems
Expert systems require too much computing power for most modern computers to output causing the operating system to crash.
Expert systems use a different kernel than standard application software which can cause errors
They cannot automatically adapt to changing environments so the knowledge base has to be changed.
Some Expert systems incorrectly prioritize information based on the primary key causing innacuaracy.
Which of he following is NOT true about Direct data entry devices?
they are specifically designed to automate or speed up the entry of data in to the system by minimising human data entry
Used to minimise human data entry because humans make mistakes
DDE devices are faster and more accurate than human entry methods
each device can be used for a number of different purposes
Direct Data Entry devices consist of either specialist hardware, software ( or both)
All of these are not uses of EFT except:
Depositing money
Allows large businesses to pay all their employees their salaries
withdrawing money
Barcodes are used in these applications:
Library book system
Shopping system
Cheques
Office systems
Check which are computer based communication applications
flyer
website
poster
google slide
What are the benefits of the websites for business?
Companies can advertise globally
Can be done without an ISP
Companies don't have to pay for the website
Company can operate without shop rental costs
EFT stands for:
electronic funds transfer
email funds transfer
electronic files transfer
All of these are not uses of EFT except:
Depositing money
Allows large businesses to pay all their employees their salaries
withdrawing money
A home is fitted with a microprocessor-controlled burglar alarm system. It is not connected to a police station.
Write three sensors which would be used in such a system.
Describe how a microprocessor-controlled burglar alarm system operates, referring to those sensors you identified in previous question.
The city of Venice is in danger of being damaged due to rising sea levels.
A new computer controlled flood defense system is being planned.
The developers of the system are using a spreadsheet to model the plan.
Give three reasons why computer models are used to simulate the flood defense system.
Computers in retail have POS terminals, where EFTPOS and RFID can be used. Define EFTPOS?
Computers in retail have POS terminals, where EFTPOS and RFID can be used. Give the three items that an RFID system consists of:
What are NOT components of an expert system
User interface
RFID
Explanation system
Knowledge base
Operating System
Air passengers can now go through passport control in a matter of seconds using the smart gates at many airports around the world. A special camera is used for face recognition and iris scan.
Write the names of two other input devices used at smart gates of airports:
Name any two biometric identification methods.
Password authentication
Fingerprint scan
Face Recognition
Magnet card
Retina/iris/eye scan
PIN stand for _____________________.
Personal Identification Name
Payment Identification Number
Personal Identification Number
ProviderIdentification Number
Books and members can be identified by unique barcodes which can be scanned using
OCR stand for Optical Check Recognition
True
False
Online patient monitoring systems use wireless sensor-based wearable technologies. These devices continuously capture and transmit specific vital signs and other specific health status parameters and alerts to the hospital system and the mobile devices of concerned medical professionals.
Name any four basic sensors that are used in online patient monitoring systems:
What is the full form of SDLC?
System Development Life Cycle
System Development Life Circle
Software Development Life Cycle
Software Design Life Cycle
Technical Documentation is designed to help the user.
True
False
Direct changeover is the fastest method of system implementation.
True
False
Which of them is the slowest method of system implementation.
Direct
Parallel
Pilot
Phased
A company that wants the quickest method of implementation.
Pilot
Phased
Direct
Parallel.
What stage comes after the testing stage?
Testing
Implementation
Specification requirements
Evolution
Conducting preliminary investigation is done in which phase?
Planning
Analysis
Design
Implementation
Describe all stages of the System Life Cycle
1. Analysis
2.
3.
4.
5.
6.
