Form 9 Christmas revision

Please review the information at:

Please review pages 2 to 54 of the ICT textbook then answer the questions which you can download from
http://sdrv.ms/1fBUcUr

Term Test

Review:

1. Types and components of computer systems

2. Input and output devices

3. Storage devices and media

4. Computer networks

 

Main sources of information:

You can also look at:

 

Quick Review is available here:

You must also complete the quizzes on Yacapaca, anyone with log in problems come and see me please. 

 

 

 

 

Computer Networks (Section 4)

A network is two or more computers, or other electronic devices, connected together so that they can exchange data.

For example a network allows computers to share files, users to message each other, a whole room of computers to share a single printer, etc.

Click below for the notes:

Click for a short review.

Homework

Please study the notes and answer the three short quizzes on yacapaca.com.

Data & Storage Media (Unit 3)

Objectives:

(a) describe common backing storage media (including magnetic tapes, hard discs, all forms of CD and DVD, memory sticks, flash memory) and their associated devices
(b) identify typical uses of the storage media, including types of access (e.g. serial/sequential, direct/random) and access speeds
(c) describe the comparative advantages and disadvantages of using different backing storage media
(d) define the term backup and describe the need for taking backups
(e) describe the difference between main/internal memory and backing storage, stating the relative benefits of each in terms of speed and permanence

 

Main information:

You can also look at:

 

Quick Review is available here:

 

 

 

Binary Code

Binary just means '0' and '1', the language computers understand. Our alphabet is converted to binary using "ASCII" code (American Standard Code for Information Interchange). Click here to find out more.
You can use this website to convert text to binary.

Input & Output Devices

Break up into groups, use the internet, ictlounge.com or see the files at http://sdrv.ms/1irTRTL
to research each device.

• State whether each device is an Input Device, Output Device or a Sensor. 
• Give a brief explanation how it operates and what it is typically used for. 
• List some advantages and disadvantages.
• Any other information of interest.

Present back to the class and be prepared to answer questions.

• Try the quiz.
• Fill in the blanks.
• Homework: Further investigation of sensors.

Grade 9 ICT Coming soon