HOW LAPTOPS WORK

INGLÉS II: PRÁCTICA DE AULA 4
1.- How Laptops Work
2.- Grammar Revision: Modal verbs

Name: ………ELİF ALIŞ………


1. Access this website:

http://electronics.howstuffworks.com/laptop.htm


- Explain how laptops differ from desktops.

The laptops are completely portable, and they use less power and make less notice than desktops models. But they are often a little slower and have less graphics and sound processing power. Nevertheless most users prefer the laptops. So laptops are also more expensive than desktops, laptops prices are falling faster than desktop prices. The laptops have battery for power to use portable. Keyboards and mouse are on the laptop. Also laptops have wireless system.
Like a desktop, a laptop has an internal hard disk drive, which stores the operating system, applications and data files. However, laptops generally have less disk space than desktops. A laptop hard drive is also physically smaller than that of a desktop. In addition, most laptop hard drives spin more slowly than desktop hard drives, reducing both heat and power consumption.


- What are the disadvantages of laptops?

Disadvantages: Laptops are more expensive price, have less disk space, have smaller hard drive more slowly, have less graphics and sound processing power than desktops.



- What are the main features of laptop components? (Processor, memory and storage, display and sound, power supplies)

A laptop’s memory can make up for some of the reduced performance that comes from a slower processor. Some laptops have cache memory on or very near the CPU, allowing it the access data more quickly. Some also have larger busses, allowing data to move between the processor, motherboard and memory more quickly. The motherboard is one piece of equipment that ties everything together, allows all the parts of your computer to receive power and communicate with one another. A graphics processing unit (GPU) is a microprocessor that handles the calculations necessary for 3-D graphics rendering. Most laptops have graphics capability built into the motherboard or have smaller graphics cards with a GPU designed specifically for laptop use. Laptops frequently share memory between the CPU and GPU, saving spaces and reducing power consumption.
Most laptops also have sounds cards or integrated sound processing on the motherboard as well as small, built-in speakers. Laptops have small batteries so laptops are portable and can run on batteries alone. Lilon batteries are the current standard for laptop computers. They are light and have long life spans.


- What are whitebooks?

A¬ modded or homemade laptop is called a whitebook.


-Who invented the laptop?

William Moggridge of Grid Systems Corporation invented it.


-When was it invented?

It was invented in 1979.


- Describe what kind of laptop Gavilan computer and Apple Computer produced.

Gavilan computer and Apple introduced other portable computers. The first commercially viable machine however was the IBM PC Convertible, introduced in 1986. The PC Convertible featured:
• An 8088 microprocessor
• 256 kilobytes of memory
• Two 3.5-inch (8.9-cm) floppy drives
• An LCD display
• Parallel and serial printer ports
• Space for an internal modem
• A software suite including basic word processing, appointment calendar, telephone/address book, and calculator software



-Summarize the main ideas from the two video clips and paste them on your blog

First video: How to add RAM to a laptop?
There is a part behind of laptop which contains two slides. One of them is open. We can fix new RAM in this part, so we can do everything very quickly.

Second video: How to buy a laptop?
Typical use: purchase ‘sale’ laptop verify it has 512 Mb RAM
Heavy use: Processor 2 GHz+
RAM 1 Gb+
Screen 1024 x 768+
Hard drive 80 Gb+
DVD writer
Wireless network 802.11 g

The first important thing is processor. Processor is sold in units of MHz and GHz. For heavy works, it must be 2 GHz. Second important topic is amount of ram /size of ram. There are three types of ram's size. These are 256 MB, 512 MB and 1 GB. 256 MB isn't enough and 512 MB is for typical use and 1 GB is for heavy use. Screen size: most low cost screen size loptops have 1024*768 pixel. This is typical screen size. If you want to buy loptop that has higher pixel,you have to pay extra money for more pixel. Hard discs are sold in unit of GB. 40 GB is typical harddisc but it is not enough. For heavy use like storing sounds and photographers, 80 GB is more suitable. Optical drive:we can have 3 options.these are CD or DVD reader,CD writer and dvd writer. CD writer is nice because it is easy way to back up. DVD writer is nice , if you want to store more data. Wireless network: make sure we have a wireless network card. Typical wireless network card is 802,11 g.