Font size
Worksheets0417 - qn's
Total questions: 24
Worksheet time: 55mins
Circle two items which are internal hardware components.
Sound card
Processor
Linker
Actuator
Keyboard
One component of the internal memory of a computer is Random Access Memory (RAM). State two characteristics of RAM.
Volatile
Non-volatile
CPU doesn't have direct access
Can be read from and written to
Permanent storage
For each of the following uses of data capture, match one appropriate direct data entry device.
Contactless credit cards
RFID reader
Multiple choice answers in an examination paper
Optical Mark Reader
To scan items at a computerised till
Bar Code reader
A glasshouse is used to grow plants and is computer controlled.
Name three sensors which could be used in this glasshouse.
Temperature
Humidity
Light
Gas
Proximity
A glasshouse is used to grow plants and is computer controlled. Below reasons why data from the sensors need to be (a) for use by a computer.
So that the (b) from the sensor can be understood by the computer.
The (c) from a sensor is analogue.
The (d) to the computer is digital.
A smartphone has many uses, for example making and receiving telephone calls. Give three other uses of a smartphone.
GPS
Video calling
3D modelling
Programming
Gaming
A developer is writing a program to record the results of examinations taken by students in a school. (a) The program will be tested to make sure that it works. There are three types of test data that can be used to test a system: normal, abnormal and extreme. Match the explanations of what is meant by normal, abnormal and extreme test data.
Normal
Data is in the range of acceptability
Abnormal
Data that is of an incorrect type
Extreme
Data that is on the boundary
A developer is writing a program to record the results of examinations taken by students in a school. (b) The program collects a large amount of data and this could be stored using either a fixed solid-state drive (SSD) or cloud storage. The developer is planning to use cloud storage. Describe the advantages and disadvantages to the school of using cloud storage rather than using the SSD.
The cloud has greater storage capacity
Many people can share the data
There is an automatic backup of data
The data could be sent directly to/from the cloud from any computer/device
Cloud storage has an ongoing cost
Users must have a reliable internet connection
The school loses control over the storage of the data
More security issues as multiple copies of the data are stored
The developer spends a great deal of time using a computer. For each of the statements given, identify a health problem and describe a possible solution. Your answers must be different in each case.
Problem: Repetitive strain injury
Problem: Back problems
Solution: Use a wrist rest
Solution: Use a trackerball//an ergonomic
mouse
Solution: Hand exercises
Solution: Voice activated software
Solution: Use a foot rest
Solution: Walk around//stand up
Solution: Use an ergonomic/adjustable chair
Solution: Sit with correct posture//with straight back
A company has an extranet. Explain what is meant by an extranet.
Extranet is a (a) controlled by a company.
A (b) network for authorised customers.
Allows access for (c) .
Examples include a (d) network that allows doctors to book appointments for patients.
A taxi company tracks the routes their cars have travelled and the current location of each one using a Global Positioning System (GPS). A map showing the route taken and current location of each car is displayed on the office monitor. Describe the order in detail how this system could work.
The position/location of the car is calculated using GPS software
Data is transmitted/sent to the office computer
An algorithm calculates the speed/location of the cars
The data is stored/saved in the computer
The map is updated every few seconds
A headteacher is planning to hold a video-conference with headteachers from other schools. The headteachers already have basic internet connected desktop computer systems including a monitor, keyboard and mouse. (a) Identify three pieces of additional hardware they need in order to participate in a video-conference.
Microphone
Webcam
Printer
Speaker
Scanner
A technician is setting up the hardware for the video-conference. State three tasks the technician would need to do to set up the hardware for the video-conference. You can assume that the hardware required has already been purchased.
Ensure the video camera/webcam, microphone, speakers/headphones are
(a) .
Ensure the hardware devices are (b) .
Carry out (c) on the microphone, video camera/webcam and speakers/
headphones.
(d) the video camera/webcam so the headteacher can be seen
Check the volume and (e) connectivity
Microprocessor-controlled devices in the home have had positive effects on people’s lifestyles. One of the positive effects of using these devices is that we can now set a cooker to switch on whilst we are out so that we arrive home to a cooked meal. Describe the positive effects of using other microprocessor-controlled devices in the home.
Microprocessor-controlled devices reduce the need for people to do (a) at home.
People can use microprocessor-controlled devices for physical (b) in the home.
People have more time to spend on (c) activities.
Microprocessor-controlled devices can be set (d) using a smartphone.
Increased (e) as homes are protected with burglar alarms/
smoke alarms/fire alarms.
Tawara Retail is an online store. This online store does not have physical shops. Customers buy products from this store using internet shopping. Describe the advantages to Tawara Retail of offering internet shopping.
No change in customer reach.
Limited accessibility for customers
Cheaper to publicise special offers rather than mail shots
Higher overhead costs.
Update stock availability/prices more quickly
A media student is creating a movie, in school, for a project. He needs to take the movie home to edit it. The student intends to use a CFast solid-state memory card to transport the movie files. The student is unable to save the work on the memory card. Give two error messages that may appear when attempting to save the work.
Medium is full
Virus found on the card
Card is empty
Device is recognized
Compare the similarities and differences between Bluetooth and wi-fi.
wireless communications
radio frequencies for communication
several devices to be connected
use security when sending data
data transfer rate
frequency
can be broadcast
range of transmission
Discuss the advantages and disadvantages to customers of using internet banking rather than visiting a bank.
Reduces the number of journeys to and from the bank
Saves money as fewer journeys are made travelling to the bank
24/7 banking
Security is an issue
The user needs a reliable internet connection
Easier to make errors
Some confidential personal data can be classed as sensitive data. Name three items of personal data that could also be sensitive data.
Instagram account
Criminal record
Facebook page
Biometric data
Religion/philosophical beliefs
A student uses social media to keep in contact with other people. Describe four strategies that the student could use to stay safe when using social media to communicate with others.
Don’t give out other people’s personal information such as (a) .
Don’t send (b) images to anyone.
Don’t (c) on suspicious links/adverts on social media.
Use (d) language.
(e) arrange to meet someone in person who you only met online.
A manager in a hospital has decided to ask a software company to develop a computer system. The system should allow patients to book all their medical appointments online. (a) Discuss the advantages and disadvantages to both the patients and the medical staff of this type of system.
Bookings can be made last minute
24/7 booking
Faster to cancel/change a booking
Email/text reminders can be sent automatically
Less time spent on the phone therefore freeing up staff
Concerns about the privacy/security of the data
If the system goes down the ability to book an appointment is lost
Medical emergencies may be overlooked
Internet connected device required by patient
Some people prefer to talk to a medical person
The manager of the hospital has purchased an expert system to help diagnose their patients’ illnesses. Name three components of an expert system.
Inference engine
Knowledge base
User interface
Actuator
Sensing devices
Which device produces solid objects.
Inkjet printer
Dot matrix printer
Laser printer
3D printer
What is the last name of your ICT teacher?
(a)
