Specification of Materials and Components

1. AT HOME OR IN SCHOOL, THERE ARE COMPUTERS, MATERIALS AND COMPONENTS, CHECK
YOU PRIOR KNOWLEDGE BY RE-ARRANGING THE JUMBLED LETTERS AS SHOWN BELOW.

2. APPLY QUALITY
STANDARDS OF RECEIVED
MATERIALS

3. BRIEF INTRODUCTION
ICT materials, components and assemblies have
its specifications before it will be purchased. As
a learner you are expected to be familiar with
the properties of these materials, products and
the factors to be considered should be your
basis in choosing the proper materials,
components and assemblies.

4.  THE FACTORS IN SELECTING THE MATERIALS:
1.Selection of material – it is the ability to choose the
materials using the following considerations:
• Cost of the material – is the amount of purchasing the materials,
it may differ from one supplier to another even if the
specifications are the same.
• Environmental consideration – anything that leads to the
pollution of soil, water and air, especially its energy consumption
impact. At the end of ICT hardware use, recycling, disposal like e-
waste this would be used in landfills and would provide impact
and effect to the environment.

5. • Chemical properties – is a material properties evident during
the time of its use will show chemical reaction.
• Physical properties – the identifiable and unique aspect of a
material most particularly its basic capabilities.
• Mechanical attributes – the physical properties that any
material exhibits when applied with forces, such as elasticity,
tensile strength, elongation, hardness and fatigue limit.
• Company producing the material – the business name
provides identity to the business and the product it produces,
especially when the enterprise produces unique and amazing
products.

6. 2. TESTING OF MATERIAL – THIS WILL HELP ANALYZE THE QUALITY AND
STANDARDS OF MATERIALS USING THE FOLLOWING TECHNIQUES:
• Hardness tester – any device that checks the hardness of a
material by measuring the durability of such material.
• • Comprehensive strength test – it is more of mechanical test
that measures the maximum amount of compressive load a
material can bear before such material breaks.
• • Impact test – is used to observe the mechanics how the
material exhibit when it experience shock and such material
immediately deform.

7. • Fluoroscope – is an imaging machine which uses X-rays to
determine the interior characteristics of an object.
• • Testing machine – a universal tester for materials for
testing tensile strength and compressive strength of
materials.
• • Creep test – is subjecting the material to high
temperature progressive deformation at constant stress
test or ability to alter its form after such test has been
taken.

8. 3. Cost of material – the amount when buying or selecting the
materials for specific project. Though this is economical in
the selection process, the amount must consider also the
quality and reliability of materials.

9.  The ICT Materials, Components, Assemblies and Its Specifications
• In relation to the factors in selecting the materials, as a learner, you need
to be familiar with the ICT materials, components and assemblies’
specifications. Not just the name of these items, you must be particular
also on how to describe details about such item.