how laptop works
Summarize the main ideas from the two video clips and paste them on your blog
1. video
Ram increases your computer´s speed. If you want to have fast computer you can add ram your laptop. Open back of the your laptop and you can slap new ram and your computer´s speed will be very fast.
2. video
When buying a laptop,we should pay attention some futures. Following to
o Processor
o Ram
o Size screen
o Hard disk
o Type of optical drive
o Wireless network

UNIT 1 MATERIALS

We listed the materials which are used in engineering. Classified the materials as metals, thermoplastics….etc.

Materials

Metals
1)Aluminium
2)Copper
3)Brass(%65 copper %35 zinc)
4)Mild steel (iron with 0.15% to 0.3 % carbon)
5)High carbon steel(iron with 0.7 to 1.4 % carbon)


General properties

1)High strength
2)Shiny
3)High melting temperature
Etc


Thermoplastics
1)Abs
2)Acrylic
3)Nylon

General properties
Raw material is petrolium have wear resistance, can be formed easily light and durable.

Thermosetting plastics

1)Epoxy resin
2)Polyester resin
3)Urea formaldehyde

General properties

1)High strength
2)Stiff
3)Hard
4)Brittle
5)Head resistance

In textile industry usually we used thermoplastics materials, such as acrylic nylon…etc. Also we used these metals like copper and steel in textile machines. In textile industry, for various uses we produce Teflon, glass fiber, carbon fiber, silver fiber cupro f¡ber.

Classification of materials
ENGINEERING MATERIALS
METALS NON-METALS
NON-FERRUOS METALS CERAMICS PLASTICS
COPPER BRONZE BRASS THERMOPLASTICS

FERRUOS METALS THERMOSETS IRON
STEEL



The properties of metals and non-metals

Metal and non-metals are different each other because most metals conduct both head and electricity but also non-metals don¨t do it. For example, copper and aluminium are used a lot of various area. Especially electrical various are made of these two elements.

Oral presentations

To make a good presentations;

Overall
.Awereness of your audience
.Clear objectives
System
.Planning
.Organization
.Information
.Impact
Delivery
.Clear
.Simple
.fluent
Body language
Visual aids





Letter

Dear Wiley’s,

I have seen your advertisement in a magazine. I intend to visit Barcelona in November. I want to rent a car. I would be grateful if you could send me more information and your catalogue.
We look forward to hearing from you soon.


Sincerely.