Ethernet For Dummies

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A Simple Apple MacBook Pro 15 inch 2010 Version Review – What the New Apple Mac has that the Old Version Does Not Have

When you look at the latest Apple MacBook pro 15 inch 2010 version and you look at the older version, you can't see anything different about them unless you go into details. The outer sleek design may be the same, from the left side of the chassis where the specifications are located;

1. Ethernet jack


2. Fire wire 800 port (backward compatible w/ fire wire 400,200,100)


3. 2 USB 2.0 ports


4. Mini display port connector


5. Head phone port


6. Micro phone port


7. SD card slot

The right side is also the same as the previous, where the following specifications are located;

1. Security lock slot


2. Dual layer DVD burner and player, but unlike the previous models, unfortunately this DVD can't support blue ray discs

The start of the changes happens once you open the lid and notice that there is a slight change of design of both keyboard and the trackpad. The newly improved key board comes with backlit keys that can perfectly respond whenever the user types, while the trackpad no longer has a mouse button. The touchpad can also be the mouse button, if you want to right click, just top the trackpad using 2 fingers. Another new feature of the trackpad is that when you use 1 or 2 fingers to swipe up and down, you will continue to scroll until it reaches top or bottom just like how I phones or pad works. While watching

DVD or video streaming you can pinch or pull the trakpad in order for you to toggle in and out of full screen mode.

Like the previous Macs, a four finger swipe can show you your desktop, view all open windows or change any programs you that you like. The units resolutions itself can be upgraded. The built in resolution of this book is 1,440 x 900 and it can be upgraded to 1,680 x 1,050 with a glossy or an anti flare finish, depending on what you like.

There are other changes you can see from the version 2010;

1. 
   Power adapter -

Another change that you can see from the version 2010 is the power adapter, from a rectangular design; it has been change to a circular design.

1. 
   Switchable graphics –

Unlike the previous Macs, this version can automatically change its graphics. Whenever you are playing a game or editing a photo that requires higher graphics, the 2010 version can automatically change its graphics without you even knowing it. But if you are just watching a video or doing light tasks, it does not change.

1. 
   Upgradable SSD's-

With this unit you can upgrade the SSD, though it may cost you, but the performance that this laptop will perform will be better. Its speed performance in downloading will improve once you upgrade without sacrificing the battery life.

1. 
   Battery life improved –

This is basically one of the reasons why Apple MacBook blows other competitors. The battery last up to 6 hours and 55 minutes whenever you are using it while playing games or other heavy stuffs, while competitors battery lasts up to 2 hours and 16 minutes – 4 hours.

 

This unit also offers one year limited warranty and 90 days free of telephone support.  An extended warranty can be given; you just have to ask the person in charge of your unit.

 

About the Author

Now, do you want to learn how to fix laptops and make a business out of it? to learn more

CLICK HERE

Block Standard Def! Best Streaming HD, Ethernet for ...


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Subnetting For Dummies

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Subnetting for Dummies With Scenario's

Below are some scenarios which will help you to learn subnetting more easily

• 
  Scenario 1 - Given a network address and subnet mask - How many subnets can you have and how many hosts per subnet.

Here we are given the address of: 172.16.0.0 /22

First we list the mask then the address in binary:

11111111 11111111 11111100 00000000 - (Subnet mask)

10101100 00010000 00000000 00000000 - (Address)

To calculate the number of subnets we total up the extra bits we are using in the mask, in this case its 6 (/22 = 8 + 8 + 6)

So as we are using 6 extra bits for the mask we can use the formula:

2 to the power of 6-2 or 2x2x2x2x2x2 = 64-2 =62 subnets

To calculate the number of hosts per subnet we total up the bits available for hosts, in this case its 10 (/22 from 32 total bits = 10)

So as we are using 10 bits for the host we can use the formula:

2 to the power of 10-2 or 2x2x2x2x2x2x2x2x2x2 = 1024-2 1022 hosts per subnet

Point to remember 2 to the power of bits used for either mask or hosts minus 2 will give you either the number of subnets or hosts per subnet

The more bits used for subnets the less bits available for hosts = more subnets - less hosts

 

• 
  Scenario 2 - Given a network address calculate the customers requirements or subnets and hosts per network

Here we are given the address of: 172.16.0.0 and require 6 departments with 2000 hosts per department

First we list the mask then the address in binary:

11111111 11111111 00000000 00000000 - (Subnet mask)

10101100 00010000 00000000 00000000 - (Address)

As the first two octets are the default for this address type (255.255.0.0.) we go to the 3rd octet and start using bits there.

using 1 bit will give us 2 to the power of 1 or 2x1 =2-2 =0 Not enough

using 2 bits will give us 2 to the power of 2 or 2x2=4-2 =2 Not enough

using 3 bits will give us 2 to the power of 3 or 2x2x2=8-2 = 6 Enough

As we used 3 bits there are 13 bits left (5 from one octet 8 from the other) for hosts so 2 to the power of 13 = 8192-2 =8190 Enough for our hosts

 

• 
  Scenario 3 - Given a network address and subnet mask list the valid subnets

Here we are given the address of: 172.16.0.0 and subnet mask of 255.255.224.0

First we list the mask then the address in binary:

11111111 11111111 11100000 00000000 - Subnet mask

10101100 00010000 00000000 00000000 - Address

As we are using 3 extra bits for the mask we look at the right most bit in the binary table, in this case its 32 so our networks will increment in numbers of 32, 0 (not used), 32, 64, 96 etc until the 3 bits or 3 1s are full totallying to 224.

An even simplier way to do this is list the mask, say 255.255.255.224

As the fourth octect has been manipulated we subtract 224 from 256 = 32 so our networks will increment in 32's, 0, 32, 64, 96 etc

 

• 
  Scenario 4

Given a network address and subnet mask identify which subnet the address belongs to.

Here we have the address 192.168.1.44 and subnet mask of 255.255.255.192

First we covert the subnet mask then the address to binary

11111111 11111111 11111111 11000000 (subnet mask)

11000000 10101000 00000001 00101100 (address)

Next we do a logical and, where we compare the subnet mask to the address and where the 1s are the same we list 1, where there is a 1 and a 0 we list as 0, and a 0 and 0 we list 0

So adding our two values we get:

11000000 10101000 00000001 00000000

Coverting our address back to binary we get:

192.168.1.0 which is the subnet our address belongs to

About the Author

Written by: Stuart King

I am a Microsoft and CompTIA certified IT professional. You can view my website at:

www.lanarkshireitservices.co.uk

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Firewalls For Dummies

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Storage Area Networks For Dummies

A Storage Area Network (SAN) is a collection of storage devices that are tied together via a high-speed network to create one large storage resource that can be accessed by multiple servers. SANs are typically used to store, share and access enterprise data in a more secure and efficient manner compared to traditional dedicated storage models. With dedicated storage, each server is equipped with, and uses an attached storage capability. A SAN meanwhile basically acts as a common, shared storage resource for multiple servers. The storage devices in a SAN can include disk arrays, tapes and optical jukeboxes all of which can be accessed and shared by all of the attached servers.

How a Storage Area Network Works

In a storage area network, the pooled storage resources and the servers that access this storage are separated by a layer of management software. The software allows IT administrators to centralize and manage multiple storage resources as if it were one consolidated resource. Because of the software, each of the servers sees just one storage device, while each of the storage devices in the SAN sees just one server. Data can be moved at will to any of the devices on a SAN.

Factors Driving SAN Adoption

A variety of factors have been driving enterprise adoption of SAN architectures over the past few years. One of the biggest factors has been increased cost-efficiencies. Storage area networks allow companies to optimize the utilization of their storage resources. With an attached storage disk, any extra storage capacity on that disk would remain unused because no other server could use it. With a SAN on the other hand, all memory resources are pooled, resulting in better usage of existing capacity. Since SAN's allow data to be moved freely, enterprises can also move old and outdated data to inexpensive storage devices while freeing up the more costly devices for more important data.

Storage area networks make it easier for companies to expand their storage capacity, add resources on the fly, allot additional resources to an application, and maintain systems far more easily than traditional storage technologies. In addition, SANs allow companies to swap out a disk or tape-drive more easily and enable faster data replication. Importantly, SAN architectures allow storage devices from multiple vendors to be tied together into a common shared storage pool. Another advantage of SAN architectures is that they allow the storage network to be located at long distances away from the server hardware, thereby enabling greater disaster recoverability.

SAN Security a Big Concern

Despite such benefits, there are some caveats associated with the implementation of SAN architectures. Storage area network security is by far the biggest issue that companies need to do deal with when moving to a SAN storage model. With a SAN, companies are literally putting all of their most important data in one central resource. As a result the need for security controls such as firewalls, intrusion detection systems, SAN encryption and network monitoring are greatly heightened.

About the Author

Nexstara specializes in implementing Compellent's Storage Center because of its ability to virtualize data. They believe it's the best Storage area network security out there. More information about SAN encryption available in the site.

NetEvents Keynote Nir Zuk CTO Palo Alto Networks - inventor of the Firewall


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Tcp Ip For Dummies

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What is the technical term for the domain extension .com or .org?

I borrowed TCP/IP for Dummies and it said that new domain extensions were going to become available of the type that we now buy a single name from, so instead of ikea buying www.ikea.com they could buy the extension ikea and put computers on the web answering to www.america.ikea, www.britain.ikea or simply "ikea". It's going to be expensive at about $150,000US a pop but I know of one i would like to buy.

Can anyone tell me what the name of this field of a domain name is so i can search out when they are going to start selling?
thanks read this old piece if you are interested.

http://www.slate.com/id/2222408/

The last part of a domain address, like .com or .org, is called a top-level domain, or TLD.

The TCP/IP Stack - For Dummies - No Cats Special Edition!


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Iphoto For Dummies

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How do you save an edited photo on a mac? The "save" button isn't working for me lol.?

I keep trying to crop a photo in iphoto and then save it. When I click on the save button, then close iphoto, the picture goes right back to the way it was before. Am I doing something wrong, or is it not possible to edit photos and save them in iphoto? Thank you for any help. I need to buy a Mac for Dummies book really bad.

and save it on the desktop so I can find it again. It will also ask what format you want it saved in.

here is the Iphoto 6 manual in pdf
http://manuals.info.apple.com/en/iPhoto_6_Getting_Started.pdf

hope it helps and good luck!

How to View, Improve, and Organize Photos on a Mac For Dummies


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Storage Area Networks For Dummies

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How to Build a Successful Affiliate Business

An affiliate business has long been recogniseed as one of the top choices for making money online. Running an affiliate business simply involves the selling of products for the product owners and getting in return a commission for that. It has been a lucrative venture for many affiliate marketers as it is a fairly easy business to set up. Morever, you do not need any storage space for any inventory. The product creation, refinement and storage (if it involves physical products) have all been taken care of by the product creators.


I am here to share with you on the four key components to making tons of money on the internet.


#1. Join a proven affiliate marketing network. This means to join a reputable network that offers good affiliate programs. The reputation of the product creator is important as well. Google their names and check out the countless reviews available on them and their products. You got to read more than one review as some reviews are written solely for the sake of advertising the products. If the affiliate product that you are interested in has received countless good reviews, you can be certain that you'll get paid and you'll receive a good amount of help from the program affiliate managers to get going and you can be pretty certain that the products that they're offering are good quality The affiliate network is staking their reputation on it. Some good places to start are companies like Clickbank, Linkshare, ShareaSale, Commission Junction etc.


#2. Discover a niche area. When I talk about a niche area, it simply means an area that you have a strong passion in. However, that does not mean that you should just start promoting any affiliate products related to photography. Instead you should tap into the search engines of Amazon, ebay and Dummies to assesss the particular areas that you are interested in that are in hot demand. For example, in terms of photography, wedding photography is a hot item and you may wish to go into the wedding photography affiliate business. You may wish to find out a series of related interest areas in your particular area of passion. Eg. Photography for Beginners, Digital Photography for Beginners, Wedding Photography etc.


#3. Build a professional looking affiliate website and do product reviews. Besides the fact that you need a website to drive traffic to it and building a long term relationship with the potential customers, it also gives your affiliate business a professional feel. It simply means that you got to stay away from these free page builders, free autoresponders and free hosting plans. These things look cheap but they have other people's ads all over them. You certainly do not wish to have your visitors think that your business is so rundown that you cannot even afford the subscription fee to a hosting site.


#4. Generate large amounts of relevant and targetted traffic to your website by using articles and pay per click advertising. Learn how to do these types of advertising right away. Article marketing is free, but very time consuming, whereas, pay per click costs money, but will bring you immediate, targeted traffic. Be careful using pay per click! Don't try for the most popular keywords, keep your bids way down to begin with and do not forget to set your daily budget for what you can afford to spend. This is important as I have heard of beginner internet marketers spending up to thousands of dollars on Pay-Per-Click advertisements that they suffered huge losses. Such losses are avoidable if you are careful with your budget setting.

About the Author

Tim Ng is a seasoned affiliate marketer and a student of Ewen Chia - "the World's Top Affiliate Marketer". Tim frequently guides people on how to make money through affiliate marketing. For a more in-depth free education on “Super Affilates Secrets Exposed”, not available in the market out there, do refer to http://www.wealthtreasure.com

Skate2 "New San Wariolona" by SuzyLee


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