ICT Revision Term II

Some buildings in cold climates use central heating systems controlled by a microprocessor.

Give two input devices that the system may use.

More than one correct answer.

• Temperature sensor

• Touch screen

• Printer

• Microphone

• Scanner

Sort the numbers of the processes into the order in which they take place:

• The required temperature is stored as a pre-set value.

• The temperature is received from the sensor.

• If the temperature is higher than the pre-set value a signal is sent to

  turn the heater off.

• The temperature from the sensor is compare the pre-set temperature.

You are buying a train ticket online and intend to pay with a credit card. When you enter your card, it will be checked by the credit card company's computer.

Which check will not be made before the payment is authorised?

• Is it a valid number for a credit card?

• Is the security code (CVV) a match for the one stored on system?

• Is card blocked, has it been reported as stolen or lost?

• Is the expiry date valid and does it match the date stored on system?

• Is the fingerprint on the card is same with the one saved in the database?

The school newsletter is going to be put on the school's website.

What are the features that can be used on the website version that could not be used in the printed newsletter?

The answer should be in the context of the school.

More than one correct answer.

• hyperlinks

• search box

• video

• photos

• text

Different types of software have different uses. Match the best software type to use for each task.

• presentation software

• Model business finances.

• word processor

• Write a report.

• browser

• Monitor pollution in the air.

• measuring program

• Create a slide show.

• spreadsheet software

• Research on the internet.

Reorder the stages of the system life cycle in the order they should be carried out.

• Documentation and evaluation

• Implementation

• Development and testing

• Analysis

• Design

The analysis stage investigates the current system.

Give three activities that need to be investigated.

More than one correct answer.

• find out what the user wants

• problems with the current system

• identify what the inputs, processing and outputs are

• checking of data entered into the system

• double entry of the data to ensure

Pilot implementation is where the ​​ (a)   of the

organisation. If there is a problem, ​ (b)   and staff

from the pilot can train and advise other staff when they start to use the system.

Phased implementation is where the new system ​ (c)   , slowly

replacing the old system until it takes over. It allows the users ​ (d)   with the new system

gradually. It is expensive as ​ (e)   .

• new system is trialled in one department
• then it affects only one department
• will be introduced in gradual stages
• to become familiar
• both systems have to be kept running

Explain the difference between technical documentation and a user manual.

More than one correct answer

• software code documentation

• instructions in different languages

• technical specifications

• step-by-step guide to use the product

• Frequently Asked Questions

State three things you should do immediately if you spill a drink into your keyboard or laptop.

More than one correct answer.

• unplug cables

• use a dry cloth to dab up any drips

• disconnect the keyboard / take batteries out of wireless keyboards

• continue to use

• wash it in water