Wednesday, November 25, 2015

There are so many different types of computer networks in existence, it can be hard to understand the differences between them, particularly the ones with very similar-sounding names. This lesson explains the structures and functions of some of the most popular computer networks.
Types of Networks
There are several different types of computer networks. Computer networks can be characterized by their size as well as their purpose.

The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe.

Some of the different networks based on size are:

Personal area network, or PAN
Local area network, or LAN
Metropolitan area network, or MAN
Wide area network, or WAN
In terms of purpose, many networks can be considered general purpose, which means they are used for everything from sending files to a printer to accessing the Internet. Some types of networks, however, serve a very particular purpose. Some of the different networks based on their main purpose are:

Storage area network, or SAN
Enterprise private network, or EPN
Virtual private network, or VPN
Let's look at each of these in a bit more detail.

Personal Area Network
A personal area network, or PAN, is a computer network organized around an individual person within a single building. This could be inside a small office or residence. A typical PAN would include one or more computers, telephones, peripheral devices, video game consoles and other personal entertainment devices.

If multiple individuals use the same network within a residence, the network is sometimes referred to as a home area network, or HAN. In a very typical setup, a residence will have a single wired Internet connection connected to a modem. This modem then provides both wired and wireless connections for multiple devices. The network is typically managed from a single computer but can be accessed from any device.

This type of network provides great flexibility. For example, it allows you to:

Send a document to the printer in the office upstairs while you are sitting on the couch with your laptop.
Upload the photo from your cell phone to your desktop computer.
Watch movies from an online streaming service to your TV.
If this sounds familiar to you, you likely have a PAN in your house without having called it by its name.

Local Area Network
A local area network, or LAN, consists of a computer network at a single site, typically an individual office building. A LAN is very useful for sharing resources, such as data storage and printers. LANs can be built with relatively inexpensive hardware, such as hubs, network adapters and Ethernet cables.

The smallest LAN may only use two computers, while larger LANs can accommodate thousands of computers. A LAN typically relies mostly on wired connections for increased speed and security, but wireless connections can also be part of a LAN. High speed and relatively low cost are the defining characteristics of LANs.

LANs are typically used for single sites where people need to share resources among themselves but not with the rest of the outside world. Think of an office building where everybody should be able to access files on a central server or be able to print a document to one or more central printers. Those tasks should be easy for everybody working in the same office, but you would not want somebody just walking outside to be able to send a document to the printer from their cell phone! If a local area network, or LAN, is entirely wireless, it is referred to as a wireless local area network, or WLAN.

Metropolitan Area Network
A metropolitan area network, or MAN, consists of a computer network across an entire city, college campus or small region. A MAN is larger than a LAN, which is typically limited to a single building or site. Depending on the configuration, this type of network can cover an area from several miles to tens of miles. A MAN is often used to connect several LANs together to form a bigger network. When this type of network is specifically designed for a college campus, it is sometimes referred to as a campus area network, or CAN.

Wide Area Network
A wide area network, or WAN, occupies a very large area, such as an entire country or the entire world. A WAN can contain multiple smaller networks, such as LANs or MANs. The Internet is the best-known example of a public WAN.

Private Networks
One of the benefits of networks like PAN and LAN is that they can be kept entirely private by restricting some communications to the connections within the network. This means that those communications never go over the Internet.

For example, using a LAN, an employee is able to establish a fast and secure connection to a company database without encryption since none of the communications between the employee's computer and the database on the server leave the LAN. But what happens if the same employee wants to use the database from a remote location? What you need is a private network.

One approach to a private network is to build an enterprise private network, or "EPN. An EPN is a computer network that is entirely controlled by one organization, and it is used to connect multiple locations. Historically, telecommunications companies, like AT&T, operated their own network, separate from the public Internet. EPNs are still fairly common in certain sectors where security is of the highest concern. For example, a number of health facilities may establish their own network between multiple sites to have full control over the confidentiality of patient records.


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Friday, November 20, 2015

Follow the Steps

Don’t Press Anything
Resist the urge to see if it’s still working:

  • Don’t turn it on
  • Don’t navigate
  • Don’t press any keys
  • Don’t use the phone
  • Remove the battery
  • If your phone will allow you to then remove the battery, and cut all the power to the device to decrease the chance of a short.


Remove it from its case

  • If you keep your phone in a protective case then dry the outside of the case and then remove it. Try not to rock the phone to much to help prevent water from running into any of the phones ports, plugs, holes, cracks or spread further throughout the inside of the phone.


Take off the removable parts

  • If your phone has a SIM card or Memory card then take it out and if necessary set it aside to try as well. SIMs are replaceable if needs be and most memory cards (at least the best memory cards) are waterproof.


  • But take them out of the phone and leave the battery cover or back plate off to help with the drying process and allow those parts of your phone to vent.


Dry the phone with a dry towel or cloth

  • Dry the outside and any visible areas with a dry cloth or towel. Again take caution not to let any water into the openings of your device if possible.


DO NOT Blow it

  • I do NOT recommend air in a can, a blow dryer, or even blowing air through your lips or a straw.


  • You might cause heat damage with a blow dryer or adversely blow water into the phone or blow the water around that’s already into the phone and cause more damage.


Do not take the phone apart

  • Don’t unscrew the phone or try and open it to get access to the inside of the phone. Even though the LDI (Liquid Damage Indicator) on your phone was most likely activated voiding your warranty, taking the phone apart could void your warranty 100%. So I don’t recommend it except as a last resort.


Dry the phone

  • You dried the outside and visible moisture as best as you could with a dry towel but now we have to dry the moisture that you couldn’t get to.


  • Use a Vacuum – although blowing the water on the phone is a bad idea, sucking the water off and or out of the phone might not be. Just make sure that you use caution trying not to scratch the phone or create a static charge from the vacuum.
  • Use Rice - One of the most common tools for drying phones is uncooked rice. Get an airtight container or zip lock bag and bury your phone in rice. The rice will absorb the moisture and help dry out our phone.
  • Silica Gel Packs – If you have any of these cool packets lying around (they are the gel packs you can find in shoeboxes) then these are great at absorbing moisture because that’s what they are meant to do. Place some packets into an airtight container with your phone and wait for them to help dry it out completely. Note: old packets that have already been used will have already reached their absorption capacity and won’t work.
  • Phone Drying Pouch – If you planned ahead and bought a phone drying pouch for just this situation then locate it and use it to assist you in drying the phone. If you don’t have one of these nifty packets then you can plan ahead for any future incidents and buy one for next time. These packets are often sold by stores as well (including Wal-Mart) if you want to check online to see if they have any in stock or place your phone in rice in the meantime and then run down to the store and see if you can locate one.


Wait for 24-48 hours

  • Wait for the moisture in the phone to dry out completely. If you have another phone that’s the same carrier as your current one you might be able to use that device while your primary phone dries. If your phone uses a SIM card then make sure your SIM is dry and insert it into another phone of the same wireless provider. Or simply take a break from your texting, tweeting, and networking and read a book or browse this awesome website instead /wink.


Check the phone

  • After a day or two of allowing the phone to dry check for moisture that might still be in or on the device. If moisture remains evident then do not re-insert the battery or accessories just yet. Continue the drying process with the suggestions above again until the phone is completely liquid and moisture free.


Attempt to power it on

  • Try and turn your phone on listening for any irregular noises and listening to make sure that the speakers still work on the unit. Check the screen and make sure that it appears to be working properly visually and if your phone has a touch screen make sure to check the touch screen to make sure that it too is responding correctly.


If your phone does not power on

  • If there is no response when attempting to power the phone on then plug your phone into a charger and see if you can get a response from the charger. This will help you to see if perhaps the battery was damaged or if it’s the phone itself.


  • If you a friend or a family member has a battery of the same type you can try that as well.


Addition things NOT to do to a wet phone

  • Freeze your phone – I don’t recommend that you put your phone in the freezer for many reasons. The chance of it causing additional damage is high because of many different factors.
  • Use an oven or microwave – don’t use an oven or microwave to help dry out your phone.
  • Apply heat – Applying heat from an external source will likely cause more damage to your phone. This could also cause your lithium ion battery to explode or start to leak, so don’t try it on your battery either.
  • Tap or bang your device – If your device isn’t working after drying it then read the article mentioned at the bottom of this article. DO NOT bang your phone against a hard surface to try and get it to work again. Along with liquid damage you might add some physical damage as well and it will be even more difficult to fix.
More information contacts us.

Thursday, November 19, 2015

ABOUT I7 CPU



When it comes to Intel LGA 1156 platforms you have been able to get an awesome mainstream platform since the day it was introduced along with Intel Core i7 800 & i5 700 series ‘Lynnfield’ processors way back in September 2009. Over the past eight months the LGA 1156 platform has sold really well and one of the only complaints that we have heard with the platform from enthusiasts and gamers is that Intel has ignored the overclocker on this platform as they don’t offer any unlocked processors for this socket. Intel offers an unlocked Extreme Edition processor for their LGA 1366 platform, but the unlocked Extreme series CPUs are reserved only for the flagship processor for that product generation.  The Lynnfield processors aren’t part of the top tier product line, so Intel didn’t offer any unlocked parts

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The latest price list of Dell LapTops.

                              TOP 10 MOBILE


10. OnePlus 2

OS: Android 5.1 | Screen size: 5.5-inch | Resolution: 1920 x 1080 | RAM: 3GB/4GB | Storage: 16GB/64GB | Battery: 3,300mAh | Rear camera: 13MP |Front camera: 5MP
The OnePlus One was a brilliant phone in 2014, offering a great price for top end specs - it truly was a bargain phone.

9. Nexus 6

Google's best ever phone is also its biggest ever
OS: Android 6 | Screen size: 5.96-inch | Resolution: 2560 x 1440 | RAM: 3GB |Storage: 32GB/64GB | Battery: 3,220mAh | Rear camera: 13MP | Front camera: 2MP
Google's latest Nexus is a phone that moves away from the usual 'super cheap superphone' and into phablet territory with its latest offering. The good news is the screen is also supercharged: massive at 6 inches, it's also got a stunning QHD resolution.
8. HTC One M9

Not quite up the 5 star standard, but HTC still has the most beautiful phone around
OS: Android 5.1 | Screen size: 5-inch | Resolution: 1920x1080 | RAM: 3GB | Storage: 32GB |Battery: 2840mAh | Rear camera: 20.7MP | Front camera: 4MP
HTC's been used to living at the top of our charts for the last couple of years, and while it's not quite managed it in 2015, it's still a phone with the best build quality out there.

7. Samsung Galaxy S6 Edge+


A phablet that's ahead of the curve
OS: Android 5.1 | Screen size: 5.7-inch | Resolution: 1440x2560 | RAM: 4GB |Storage: 32GB/64GB | Battery: 3000mAh | Rear camera: 16MP | Front camera:5MP
The Samsung Galaxy S6 Edge is one of our favourite phones around at the moment, so when we got our hands on the supersized version we were almost giddy.
6. iPhone 6S Plus

Apple's second big screen phone is another stunner
OS: iOS 9 | Screen size: 5.5-inch | Resolution: 1920 x 1080 | RAM: 2GB | Storage: 16GB/64GB/128GB | Battery: around 2750mAh | Rear camera: 12MP | Front camera: 5MP
On one hand, this is just a larger iPhone 6S. That's no bad thing, as that phone is one of the best around at the moment. But this second Apple phablet has a number of elements that make it a great phone in its own right.
5. Sony Xperia Z5

Waterproof, sleek and packed with big features
OS: Android 5.1 | Screen size: 5.2-inch | Resolution: 1920 x 1080 | RAM: 3GB |Storage: 32GB | Battery: 2,900mAh | Rear camera: 23MP | Front camera:5.1MP
Sony doesn't half like bringing out new phones, doesn't it? The paint's barely dried before a new one is shooting onto shop shelves - but we don't mind when they offer fancy new features.
4. iPhone 6S

Bigger, better, sleeker and faster than the iPhone 6
OS: iOS 9 | Screen size: 4.7-inch | Resolution: 1334 x 750 | RAM: 2GB |Storage:16GB/64GB/128GB | Battery: 1,715mAh | Rear camera: 12MP | Front camera: 5MP
What can you say about any new iPhone? Most people are already decided about whether they're going to buy the new model before it's even announced - but that hasn't stopped us giving it a thoroughly good going over.
3. Samsung Galaxy S6 Edge

Curving into the future with impressive specs
OS: Android 5 | Screen size: 5.1-inch | Resolution: 1440 x 2560 | RAM: 3GB | Storage:32GB/64GB/128GB | Battery: 2560mAh | Rear camera: 16MP | Front camera: 5MP
The Samsung Galaxy S6 Edge has all the power and features of the table-topping S6 (amazing camera, stunning power, absorbing screen), but does it with a little extra too, thanks to the curved edges on each side.
2. LG G4

Luxury leather on a smartphone that tries to please everyone
OS: Android 5.1 | Screen size: 5.5-inch | Resolution: 2560 x 1440 | RAM: 3GB | Storage: 32GB |Battery: removable 3,000mAh | Rear camera: 16MP | Front camera: 8MP
LG has tried to focus on what everyone actually wants out of a smartphone, a great looking design, colour rich display and the great camera for photos.
1. Samsung Galaxy S6

A brilliant phone that shows Samsung still has what it takes
OS: Android 5 | Screen size: 5.1-inch | Resolution: 1440 x 2560 | RAM: 3GB | Storage:32GB/64GB/128GB | Battery: 2550mAh | Rear camera: 16MP | Front camera: 5MP
While last year's Galaxy S5 was nothing special, this year Samsung's started from the ground up to make a truly wonderful smartphone.
There’s some debate about whether you really need antivirus apps on your smartphone. Much depends on whether you side load apps, but there’s no denying that malware has grown into a much greater concern so, Luckily security apps have improved dramatically to keep pace with the new threats, so you have plenty of great protection to choose from.

The majority of Android security apps are actually packages that include a host of other tools from contact filtering to remote lock or wipe. We decided to take a look at the top five Android security apps and find out what they do. We are taking a look at these from a consumer point of view, so be warned that some of the “free” apps are only free for personal, non-commercial use.

The top 5 security apps are as follow

1. 360 Securtiy(Free)


A major player in China, developer Qihu burst onto the scene and claimed the top spot in AV-Test’s September 2013 report with a virtually flawless detection rate of 99.9 percent, the highest of any of the security apps tested. In the latest March 2014 report it achieved a detection rate of 100 percent. The focus with 360 Mobile Security is firmly on detecting and nullifying threats to your system. It has a very streamlined, elegant design. It’s extremely lightweight, and it’s completely free.




2. Avast! Mobile Security


As a genuinely free app for the Android platform, Avast! Mobile Security is offering an impressive range of tools. It has antivirus protection, it scans your apps to provide details on what they are doing, and it has a Web shield that scans URLs for malware.


There are various additional tools in the package and the best of the bunch is the anti-theft component. The app is actually based on an old app called Theft Aware which Avast acquired. The anti-theft feature is hidden and allows you to remote control your smartphone using SMS. So if you lose your phone, you can remotely lock it, locate it, or wipe it. You can make it play a siren sound, lock down the SIM card, and prevent USB debugging as well. It’s a comprehensive solution for theft protection.

This is a new entry for our top five and it deserves its place with a 100 percen detection rate in the latest AV-Test report and an easy-to-use interface. The basic app is completely free and it provides real-time scanning of apps to detect malware and potentially dodgy apps trying to send texts or make premium rate calls.

The free version also includes a suite of anti-theft tools. You can remotely locate and lock your smartphone or tablet, and you can prevent anyone from uninstalling apps by using password protection.


With a 100 percent detection rate and no false positives, you can trust the free version of Avira to keep your Android smartphone or tablet safe. It has a light footprint in terms of performance and a sleek, minimalist design that fits in well with the Android platform.
Avira allows you to scan apps for potential trouble and it scans new apps or updates automatically. There’s also the usual batch of anti-theft tools, to help you find your device remotely, lock it, wipe it, or trigger an alarm.


5. AVL
You are probably just looking for malware protection that’s as barebones as possible. If you don’t want anti-theft tools, or identity protection, or any of the other possibly superfluous features that come in many security apps then AVL will suit you.