Chapter 6 - ICT Application

Chapter 6 – ICT Application

​Data handling, Measurement applications and Microprocessors in control applications

Open Ended

Name 4 methods of communicating information.

​Data handling applications

Data tracing, mining and analysis are some of the most important tasks that most organizations are required to do.

Subject | ICT

Open Ended

why data is important?

​Answer

​Data allows organizations to more effectively determine the cause of problems.

Subject | ICT

​Data handling applications

​In fact, Data analytics is a relatively new science that analyzes large amounts of raw data so that conclusions can be made which can influence decision-making more accurately.

Subject | ICT

​example

Subject | ICT

​Surveys

​The starting point, whatever the data-handling application, is data collection. In computer terms, surveys are conducted using data capture forms

Subject | ICT

​Example data handling applications

Subject | ICT

Open Ended

sometimes a form asks for an address or an email address or a phone number. Why would this be needed?

​Answer

​so they can use it for their business, for example like sending ads/brochures.

Subject | ICT

​Example data handling applications

Subject | ICT

​To understand the use of ICT in producing school reports you need to consider what information is on the reports :

• Student-specific data​

• Student progress​

• Absences and late arrival

• teacher comments

• date of the reports​

​Example data handling applications

Subject | ICT

​Advantages of Data Handling Applications for Storing Data:

•Data can be updated, organized, sorted, and searched in different ways.

•Data can be displayed or printed in different formats.

•Data can be backed up or moved using storage media.

•Huge storage space not required (filing cabinets)

Subject | ICT

Open Ended

2 advantages of data handling applications for storing data :

Measurement applications

A computer can be used to display the values to the user by displaying a representation of the magnitude of the thing being measured.

Subject | ICT

​Seismograph

​Devices called sensors, automatically take measurements and return the values to the computer

Measurement applications

Subject | ICT

​Seismograph

It is very important to be precise when measurements are taken by the seismograph.

​

If the earthquake is getting strong, people can be alerted to evacuate to avoid mass causalities.

Open Ended

what is this?

Sensor procedure

Subject | ICT

Open Ended

Why Use Computers to Measure Things? (2 reasons)

​Answer

•Computers do not require breaks.

•Readings are more accurate compared to humans.

•Readings are taking more frequently.

•Data can be analyzed and compared with existing data.

•Automatic graphs can be created.

•Sensors can work in extreme conditions which could be dangerous for humans.

•People can complete other tasks whilst the systems works automatically.

Subject | ICT

Sensor procedure

Subject | ICT

Microprocessors in control application

​Describe the role of the microprocessor in controlling the oven temperature.

The sensor takes temperature readings in the oven. The sensor signal will be converted from analog to digital. The microprocessor receives the data from the sensor and compares to the preset value. If the temperature is lower than the pre-set value then the Microprocessor will send a signal to turn the heater on. If the temperature is higher than the pre-set value then the Microprocessor will send a signal to turn the heater off. The process will continue to repeat to maintain a constant temperature.

​Flowchart

Subject | ICT

​Turtle graphic

Another example of computer control. It allows you to perform actions by giving the computer a set of clear instructions to follow.

Subject | ICT