Quad Processor Server: Best for Multitasking Work

This processor was intended for the most recent computers for great efficiency while maximizing also electric power saving owing to its advanced feature capacity. To begin with, you must make sure the new processor you would like can be used with your present motherboard. A number of affordable quad processor server can be purchased from…

This processor was intended for the most recent computers for great efficiency while maximizing also electric power saving owing to its advanced feature capacity. To begin with, you must make sure the new processor you would like can be used with your present motherboard. A number of affordable quad processor server can be purchased from online stores. This 32-bit processor was the most innovative processor employed in many computers which were manufactured then. There are lots of processors intended for the mid-range user, who wants a workstation, which can take care of lots of multitasking workload.

Rackmount servers are strictly what you should be studying. A lot of these devices, however, come with numerous cores. It is these contemporary low cost servers which may be subject to very higher software license expenses. An advertising department manager reports that the advertising department database has incorrect data. These quad processor servers in comparison to others we've searched are unquestionably the best price. It's important to know why these caches are vital to making your gaming laptop run far better.

AMD is far behind with respect to technology at this time and it's strongly recommended that you go for an Intel processor instead, since it will certainly provide far better performance. Intel deliveries several processors that are commonly held to be a number of the greatest CPU's around for PC gaming systems. The motherboard connects the rest of the components to one another, such as, for instance, a brain or heart. Technically however a motherboard is a complicated item of technology which exists in virtually every electronic device. The motherboard is easily the most important part of the computer. Even though most motherboards support just 1 CPU socket, some applications gain from having more than 1 processor to attack the tasks at hand. Chipsets are already embedded into your logic board the majority of the moment, meaning you must select your chipset at exactly the same time you select your processor.

When it is not then you can either look for a different processor that's compliant, or change out your motherboard with something that's compatible by it. The very first direction targeted at gaming and the way the dual core processor server will improve the gaming the capacity of the computer. Beside, these hexa core processors are inclined to be fiendishly costly.

If you are likely to re-purpose your previous computer parts then there are a couple things you would like to avoid. The computers were not on the net or a LAN. You will need to choose what sort of computer you desire. Larger computers are typically available with quad cores. If you're re-using your previous computer then you have to strip out many of the extra expansion cards that you've installed over time. The majority of people buying cheap laptops will often need to acquire the very best value for money. For the normal user, obtaining a laptop that is not too sluggish and that may be on the world wide web is easily the most important thing.

The SMB Owner’s Guide to Ensuring Your Success With Hyperconvergence

Hyperconvergence is the newest IT architecture that is removing both cost and complexity from virtualization infrastructure. This article asses you are aware of the advantages of hyperconvergence and how it applies to the business end of your small to medium business. What we are going to discuss is how to ensure that you are getting…

Hyperconvergence is the newest IT architecture that is removing both cost and complexity from virtualization infrastructure. This article asses you are aware of the advantages of hyperconvergence and how it applies to the business end of your small to medium business. What we are going to discuss is how to ensure that you are getting the TRUE advantages from Hyperconvergence over what all those fancy marketing papers say you can.

A small to medium business does not mean just a tiny kiosk in the mall that only has a single POS computer. We're talking about SMB in terms of between 50 to 500 employees with an IT staff of up to 5 full or part-time staffers.

There are a lot of claims out there around hyperconvergence technologies. At the top of the list is reducing costs. Also, it claims to be a simpler environment for your IT staff – increasing productivity. As the business owner, what questions do you need to ask to ensure that your hard-earned capital is well spent?

Among all the claims, there are 5 things that you need to look for in a hyperconverged solution to ensure that your solution brings everything to your business that it can.

Vendors in the solution

One of the claims of hyperconvergence is simplification of the solution. This is potentially achievable by eliminating the multitude of vendors that are part of a traditional virtualized solution. This solution involves how many vendors? Where do the individual responsibilities of each vendor start and stop? Will you need multiple support contracts, or is everything covered under one master contract? Is there a central support number to call, or is there the possibility of finger-pointing between various manufacturers? In this vein, is the solution the intellectual property of one company, or are there different licensing agreements in place? How could this affect your investment in the event of a manufacturer bankruptcy?

Licensing

The initial install of the solution is probably correctly sized for your business. What happens if you need to expand that installation? If you need more virtual servers, or to add more users, are there going to be any additional license fees (Vmware)? What about yearly maintenance fees, will those grow, too? What if we expand and I want to add virtual servers at another location? Are my licenses “tiered” or do they get more expensive for additional functionality or when I hit a certain license count? These are not necessarily deal-breakers, but fore-warned is fore-armed. It sure helps to have a reliable idea of ​​licensing costs when budget time rolls around.

Expandability

Hyperconverged solutions come in all shapes and sizes. Different solutions exist for a dozen virtualized servers, and for several hundred virtual servers. Whichever you have is not as important as the answer to the question Is the solution expandable? Does the solution have the ability to cover your business as it grows, without the dreaded “fork-lift upgrade”, which means downtime for the profit-centers of your business. In addition to this, if upgrades are possible, do they involve downtime? Can your sales department sell while the upgrades occur?

Installation

Sure, everyone will be more than happy to install this beast once you have signed on the dotted line, but just how complex is that installation? Can we operate on the existing systems and minimize downtime while the installation occurs? How complex is the switchover to the new systems (easily migrating VMs or data)? Can your IT staff shadow the installation? Is it easy enough that they can do it themselves with just a bit of guidance? Can your staff expand the system, or will you need outside help?

Ease of Use

Now that we have it and everything is running, just how difficult is it to get my IT staff up to speed on the product? Is there additional training that will take my staff off site in order to learn how to use this product? Once I train my staff, am I in danger of losing them to a competitor willing to pay more for those certificates? When we add additional virtual servers to the environment, will my staff be able to do that? How difficult is it, and how long will it take? Since my staff is not as large as some of the big-guys, how difficult is it to cross-train?

Summary

Hyperconvergence is an amazing leap forward for IT virtualization. Correctly sized, designed, and implemented it promises a lot to the small to medium business. But like most things in life, one size does not need fit all. Spending money wisely requires due diligence. Make sure the business squeezes all of the value that you paid for from this solution. Address the questions around vendors, licensing, systems expandability, installation and ease of use.

Engage with the manufacturers and ask the solutions provider the next step questions addressed in this article. This will ensure that you enjoy the advantages advertised while getting the exact solution to benefit your business NOW.

The SMB IT Guy’s Guide to Ensuring Your Success From Hyperconvergence

By now, everyone realizes the advantages of server virtualization. Flexibility in the face of rapidly changing technology, reduction in administrative effort on busy IT staff, and cost savings from reducing physical machines is just the beginning. As you may have heard, hyperconverged infrastructure solutions offer all of these advantages, plus the added benefit of simplicity…

By now, everyone realizes the advantages of server virtualization. Flexibility in the face of rapidly changing technology, reduction in administrative effort on busy IT staff, and cost savings from reducing physical machines is just the beginning. As you may have heard, hyperconverged infrastructure solutions offer all of these advantages, plus the added benefit of simplicity in your environment.

This article is targeted towards small to mid-sized business: 50 to 500 employees supported with 1-5 or so staffers in the IT department. These IT shops do not rely on specialists, but a few really good “jack-of-all-trades”. If you are looking for a way to bring this up with the boss, make sure to see the article written for the senior managers or owners in the business entitled The SMB Owner's Guide to Ensuring Your Success from Hyperconvergence.

So – there are a lot of different hyperconverged vendors out there and a lot of solutions. If you believe the literature and web demos, they will all do everything you need in your environment. How do you know which is the best and what to look out for?

As with everything in life, the answer is – It depends . No one can answer the question of which is best for you, without the intimate knowledge of your environment which probably only you have. What I can do is provide you with some questions that you might want to ask the various solutions providers. These may help you determine which solution works best for your organization, and that management will buy off on.

Here are 5 questions to help you in your inquiry.

What comes in the box?

Well, not literally, but what does this solution entail? How many servers of MINE will this solution cover, and how much extra capacity will I have? Are there any extras that might later cost me money or maintenance fees? Are installation services needed and possibly included in this solution? Is high availability between hardware units included in this quote? The answers to these questions may not make or break the solution for you, but you should know what you are getting for your money. You need to be able to present this effectively to management so no one gets any unpleasant surprises later. Maybe you only need a barebones system right now. That's fine, but make sure that you know what is included and what everyone's expectations are.

Licenses

There are a few main solutions out there and they all handle this differently. Many manufacturers of these solutions OEM hypervisors, so ask how that affects the cost of your unit (s). Is there the possibility of having to purchase additional software licenses in order to expand? Are all of the management consoles and utilities provided under the license of the hyperconverged product? If not, what is not included that I may want, and where can I get it? Do I need to deal with the hyperconverged manufacturer, or do I have to drag another vendor into this? How many vendors are involved in this solution and who do I call if I need support? Are there different tiers in the number of licenses? What do my maintenance costs look like 3 and 5 years out? If my server count grows by 20% per year, what additional costs will I encounter? Most solutions providers will be more than happy to work these numbers for you, and your management will love your forward thinking “strategic planning”.

Simplicity and Ease of Use

Hyperconverged infrastructure solutions are all about making things simple, right? Find out. Get to know how this particular solution works. You do not need to see the actual code, but it might be nice to know conceptually how everything fits together. Does this solution come with any training? Is training required? Is training an extra cost? Are basic functions like setting up virtual machines, virtual disks, and virtual NICs intuitive? What about more advanced tasks? That pesky application that we have that demands VLAN tagging, how does this solution support that? Can I do every task I need to do from the management interface? How easy is this product to use for non-pre-sales-engineers-that-don't-work-for-the-manufacturer?

Backup, Recovery, and Failover

OK – we are looking at this solution because recovery and business continuity are often made much easier with this. Can I stop dropping by the office after hours and on weekends to do silly little server tasks, like rebooting crashed boxes … for payroll … at the end of the month? How does this solution help me with recovery tasks? How does it handle a crashed server? How does the solution handle network failures, disk failures, or whole server failures? Can I SEE it demonstrated live? How will this solution affect my existing backup strategy? Will my current backup solution work, or does this solution include something that replace it? Does it do native snapshots? How many? Will it replicate those snapshots somewhere automagically? How can my existing DR plan be improved with this solution?

Scalability

Everyone has a constantly changing environment. How does this solution handle growth and changing needs? What does it take to add 20% capacity to this solution? How much does it cost, and how easy is it to do? Will I have to stop production or do it at 3am? Do I need additional chassis to do this, or can I upgrade the units internally? Will this require downtime? What if I want to start moving things to the edge of my infrastructure? How flexible is this product? Do I have the ability to add more memory, CPU, or plain disk to this solution independent of purchasing the next model? What is the roadmap for this product line – Flash disk, software, and NIC speeds?

Hyperconverged infrastructure promises to be an amazing step in the IT virtualization lifecycle. There are different capabilities and features in all of the various solutions. You just need to ask a few questions to figure out which one is right for you. Not just right for right now , but right for you in 3 to 5 years. Only after you can answer the questions above will you be able to enjoy the REAL benefits of simplicity that hyperconvergence provides.

How to Choose the Perfect Wi-Fi Router

The key to a connected home is the connected part. A smart device without the wireless communication features is just a regular old device! Some smart devices communicate through Bluetooth, but the vast majority connect through Wi-Fi. Therefore, the Wi-Fi router is one of the most important components of a smart home! Sometimes your internet…

The key to a connected home is the connected part. A smart device without the wireless communication features is just a regular old device! Some smart devices communicate through Bluetooth, but the vast majority connect through Wi-Fi. Therefore, the Wi-Fi router is one of the most important components of a smart home!

Sometimes your internet service provider offers to have you rent a router. This is usually a bad deal. You can often save money by buying your own router. Read on to find the right router for your home.

Router Speed

There are several different classifications of router speeds, denoted as 802.11 followed by a letter. The Wi-Fi speed ranks go like this: a -> b -> g -> n -> ac, with “a” being the slowest, and “ac” being the fastest.

If you're in the market for a new router, beware 802.11a, 802.11b, or 802.11g routers. These routers are several years out of date, and unless you're getting them for rock bottom dollar, they are not worth the money.

802.11n routers tout speeds up to 300 megabits per second, and 802.11ac routers can reach speeds around 1300+ megabits per second. Now keep in mind, the maximum speed you will get depends on the internet service you pay for. Most modern homes do not have access to speeds faster than 300 megabits, so you would probably be okay with purchasing an 802.11n router. However, if you want to have future-proof, purchasing an 802.11ac router should have you set for the next several years.

Dual Band vs. Single Band

Many routers offer dual band functionality, such as 2.4 ghz signals and 5 ghz signals. Single band routers only offer 2.4 ghz signals. If you have a lot of devices or really need the extra speed, go for the dual band router. If your router use will be modest, you can save some money and stick with the single band.

Extenders and Mesh Networks

If you have a large home, you may need to purchase Wi-Fi extenders. These devices can boost the signal and reach further rooms in the house. I recommend setting up your new router first to see if extenders are necessary.

If money is no object, you could purchase routers with mesh networking technology. These routers automatically work together to create a powerful Wi-Fi network. The technology is mostly used in commercial buildings, but is now becoming more accessible for the consumer. That being said, mesh routers can be very expensive!

With these tips in mind, go shop around!

A Guide to Troubleshooting Smart Devices and The Internet of Things

Step 1 – Google If you are encountering a problem, odds are the answer can be found using a search engine. Start here first! Step 2 – Look for Clues on the Device Itself Many smart devices will have flashing lights or other indicators when something goes wrong. This can provide clues to what is…

Step 1 – Google

If you are encountering a problem, odds are the answer can be found using a search engine. Start here first!

Step 2 – Look for Clues on the Device Itself

Many smart devices will have flashing lights or other indicators when something goes wrong. This can provide clues to what is going on.

Step 3 – Check the App for the Device

Most smart devices have a corresponding app for a smart phone. This app can usually detect when the device is malfunctioning and give you tips to restore functionality.

Step 4 – Turn It Off and On Again

Yes, this may seem cliché, but turning your device off and on again may fix the issue! It only takes a minute or two, so you might as well give it a try.

Step 5 – Check the Power Source

If your smart device would not turn off and on, there's probably something wrong with the power source. Make sure the device is really getting power, either from a battery or power cord.

Step 6 – Dig Out the Instruction Manual

If you still have the instruction manual for the product, now would be a good time to get it out. There's usually a helpful troubleshooting section near the back. The instruction manual will contain information on how to reset the device, too.

Step 7 – Check your Wi-Fi Connection

If your device connects to Wi-Fi, make sure your Wi-Fi router is working. You can easily test this by seeing if other devices connect to the Wi-Fi. Try going to some different websites as a test. If your Wi-Fi is not working, try unplugging the router and plugging it back in.

If that does not help, connect your computer to the wall with an ethernet cord. If you still can not access the internet through the ethernet cord, contact your internet service provider.

Step 8 – Reset the Device

If nothing has worked, you can try to reset the device back to factory default settings.

Caution! This will remove all your settings and should only be done as a last resort. You will need to go through the device set up process all over again.

If you have the instruction manual, it should say how to reset the device. If you do not have the instruction manual, search the internet for the factory reset process.

Step 9 – Contact the Experts

If you have tried every single one of these steps to no avail, it's time to bring in the experts. There may be a hardware issue with your smart device. Check the device manufacturer's website for help with warranties and repairs.

Enterprise-Class Storage Does Not Have to Bust the Budget

Data growth continues to accelerate, training storage infrastructures and pressing organizations to find ways to control storage costs. Small to midsize businesses (SMBs) often try to lower costs with the use of consumer-grade storage, but that is a risky strategy. While it will certainly lower costs in the near term, it creates the very real…

Data growth continues to accelerate, training storage infrastructures and pressing organizations to find ways to control storage costs. Small to midsize businesses (SMBs) often try to lower costs with the use of consumer-grade storage, but that is a risky strategy. While it will certainly lower costs in the near term, it creates the very real possibility of increased operating and downtime costs down the road.

Simply put, consumer-grade technology is built for consumer-grade workloads. For example, consumer-grade hard drives are typically designed to handle an annual workload limit of about 25TB per year – far less than the 500TB annual limit for most enterprise-grade drives. Unsurprisingly, failure rates skyrocket when consumer-grade drives are plugged into arrays and subjected to data center workloads.

Another big difference is the always-on nature of the business environment. Data center storage arrays are powered up all the time and are rarely idle for any length of time. When they are not supporting application requests or data saves, they are often involved in error detection, system backup and other maintenance tasks – all of which places additional stress on mechanical components. Consumer-grade devices just were not meant for that type of constant activity.

In hybrid arrays that combine traditional hard drives with flash-based solid-state drives (SSDs), it has become fairly common to use consumer-grade SSDs as a cost-control method. The theory is that since flash drives are electronic without the mechanical limits of hard drives, they can handle the extra workload. There are multiple tradeoffs, however.

The life expectancy of a flash drive is measured by the number of write or erase cycles it can take before becoming unstable. Consumer drives built for light activity lack the durability of enterprise-class SSDs and can wear out more than 10 times faster. Enterprise SSD also offers significantly faster data transfer rates with multi-Gigabit-per-second throughput compared to about 2500Mbps for top-of-the-line consumer products.

Consumer-grade storage may provide plug-and-play simplicity, but with none of the scalability, capacity or optimization features of a business-grade solution. However, many SMBs often feel as though they have no choice due to the upfront costs of enterprise-grade storage.

iXsystems is removing that barrier with its line of TrueNAS storage appliances designed for smaller organizations that need reliable, enterprise-class storage. Based on the FreeNAS open-source software-defined storage system, the TrueNAS X10 is a unified storage array that delivers 20TB of hybrid file and block storage for under $ 10,000.

TrueNAS X10 arrays are loaded with enterprise-grade capabilities, including VMware, Citrix and Veeam certifications, integration with public clouds, capacity-efficient features such as block-level inline compression, deduplication, and thin provisioning, as well as snapshots, replication and data -at-rest encryption.

TrueNAS X10 is available in a single-controller or a dual-controller configuration. iXsystems recommends the dual-controller configuration for customers requiring high availability, but notes that those with budget constraints may opt for the single-controller version initially and then upgrade to a dual-configuration at a later point. Each storage controller is anchored by a high-performance, systems-on-a-chip (SOC) Intel Xeon D-1531 processor.

Although it is important to limit costs and conserve cash when possible, you need reliable technology to drive business efficiency. With data growth accelerating at a rapid pace, using consumer-grade solutions to address your storage needs is a gamble that could result in downtime, lost data and other operational issues.

What to Look for in an All-Flash Array

It's that time of year when IT industry analysts makes predictions about the trends that will drive technology spending. Storage remains a major line item on 2018 IT budgets, and more and more organizations are investing in flash storage platforms as opposed to legacy, disk-based systems. According to the Spiceworks 2018 State of IT report,…

It's that time of year when IT industry analysts makes predictions about the trends that will drive technology spending. Storage remains a major line item on 2018 IT budgets, and more and more organizations are investing in flash storage platforms as opposed to legacy, disk-based systems. According to the Spiceworks 2018 State of IT report, flash will become the primary storage for many workloads this year, with disk drives moving to secondary storage and archival applications alongside magnetic tape.

The need for improved performance is the primary driver of flash adoption. Hard drives are mechanical, and the time it takes to move the read / write arm across a spinning disk creates an unacceptable amount of latency in today's data center environment. Solid-state flash drives are electronic, with no moving parts. As a result, flash storage is more than 20 times faster than disk, with sub-millisecond data access times.

All-flash arrays are also smaller than traditional disk drives and use a fraction of the power. Experts say that reduced power and cooling costs can more than justify investments in flash storage. Furthermore, many organizations find that all flash arrays give them enough performance and capacity to consolidate workloads, enabling them to reduce the number of storage arrays that must be purchased and managed. In addition, most flash arrays incorporated data optimization techniques such as de-duplication and compression to dramatically increase capacity.

However, many all-flash arrays are built using legacy architectures that were designed to increase the performance, availability and data protection of disk storage. These architectures are not capable of taking full advantage of the high performance and low latency of flash – in fact, flash can overwhelm the controllers, ports, I / O interconnects and other components. At the same time, it's important to recognize that flash is less reliable than disk, statistically speaking. Not all flash storage systems meet enterprise requirements for availability and resilience.

Flash-optimized architectures are designed for the performance characteristics of flash. Every component of the system is optimized for flash, ensuring that workloads have all available resources at their disposal when needed. These solutions are scalable, and provide consistent, predictable performance. They also provide enterprise-class data protection and high levels of reliability.

HPE Nimble All-Flash Arrays deliver enterprise-class features in a flash-optimized architecture. With sub-millisecond response times and six-nines guaranteed availability, HPE Nimble All-Flash Arrays can support the most demanding, mission-critical workloads. Variable block de-duplication and compression provide five times the data reduction of competitive products with no performance impact. HPE Nimble All-Flash Arrays are simple to deploy, configure and manage, enabling you to scale up performance and capacity independently and non-disruptively, and scale out to four arrays managed as one.

The HPE Nimble Storage Predictive Flash platform also includes an advanced predictive analytics engine for organizations seeking a true next-generation all-flash solution. HPE InfoSight predictive analytics is capable of addressing over 86 percent of storage issues before they occur. This technology offers both superior performance and the highest availability with options to scale to petabytes to meet growing requirements.

If flash is on your radar for 2018, look for purpose-built solutions that deliver the performance and reliability your organization demands.

When To Save Big On Cable Assemblies – And When To Splurge

Everyday, we are blessed by the comings and goings of materials that allow life to move forward. From the simplest diodes inside of computers to the massive cranes that aid in construction projects, plus the cable assemblies that allow power or data to flow efficiently, we see how various materials make our world run. Lost…

Everyday, we are blessed by the comings and goings of materials that allow life to move forward. From the simplest diodes inside of computers to the massive cranes that aid in construction projects, plus the cable assemblies that allow power or data to flow efficiently, we see how various materials make our world run. Lost in the mix of all of this has to be the purchasing department of any business that deals with industries require any number of parts and pieces to operate.

For all intents and purposes, let's focus on cable assemblies. Again, they transit power or information from one place to another. Look at the inside of a computer, factory machinery, hospital equipment, or car, and you'll certainly encounter a cable assembly of some kind. When you have been given the responsibility to order cable assemblies for your company, it is hard to not be a bit unsure of what to do. That is if you've never done it before. Even if you do have experience with ordering cable assemblies, you are aware that there are things that can make every order a little different.

Regardless if you're a newbie to cable assemblies or not, you can take a cursory look at them and deduce that the materials involved in their construction do not seem like they cost too much. However, it's important to know that not all cable assemblies are built the same way. In fact, much of the work involved is customized to a particular customer operating in a specific industry. Given the importance of these items, is it right to be considering the cost when ordering?

There are a few ways to approach the issue. If you want to save money, consider the following:

Look Over Project Specs & Bill of Materials – Working with a trusted, responsive manufacturer makes it easier to look over what materials you need for your order. The manufacturer will be able to provide options as to where certain materials can be used to still accomplish the same tasks & reach the same goals but be easier on your budget.

Have A Better Understanding of the Project – This goes hand-in-hand with looking over materials. By knowing what the cable assemblies are for, both you and the manufacturer can work together to explore options for your business. You may even have some better insight as to how to assess your current needs and see how they may change in the future.

However, while saving money can make you a hero, you also need to know when it's best to actually splurge on cable assemblies. Actually, it might be best to note that the word 'splurge' may not be the best choice of words because it follows that you're doing more than would be necessary. That's not the case here, but if we're to use 'splurge', you'd want to spend accordingly if the specs of a project call for certain materials. There is no room for substitutions, and even with a better understanding of the project, everyone understood understand that getting the job done requires the right materials.

What You Should Know When You Need A Laptop Repair Center

The world has become a home to some of the smartest and most innovative gadgets that will always blow our minds. While we are awed by the many functionalities of these gadgets especially computers and their hardware, the need to repair them is increasing. Computer repairing services have made it possible for us to get…

The world has become a home to some of the smartest and most innovative gadgets that will always blow our minds. While we are awed by the many functionalities of these gadgets especially computers and their hardware, the need to repair them is increasing. Computer repairing services have made it possible for us to get back our gadgets the way we bought them when they are faulty

computers may not be easily transported around especially for office people, who may want to work everywhere. The need to move around with a mobile office has brought laptop to our rescue. Laptops have made deadlines to be met and office works to be simple and fun. We have been able to enhance our productivity with laptops. Sometimes, we end up struggling to work with a laptop because of a simple fault that we are stuck.

When our laptops break down, we go for laptop repairing services that can be found online or offline to repair your gadget. It can be very frustrating when we are held in bondage by a faulty laptop. Few laptop or PC users most have experienced a situation where a gadget is tricky to repair. At the end of the day, we realize that the fault was nothing to waste time or money on because it was something minor.

There are various way that we can get our gadgets repaired within a short time. The first thing that most gadget users think of when they need repairs is to visit service centers. There are disadvantages that come with these service centers. When a computer repairing services center has few professionals to handle a number of gadgets, some customers end up disappointed. The reason is why some people visit laptop manufacturer offices especially the companies that are nearby.

In a world where there are many laptop repairing services to choose from, it may be a daunting to pick the right one for your gadget. One of the ways to get past this level is to make use of the search engine like Bing, Yahoo or Google. To get the perfect service provider for your PC or laptop, you need to take out time to check the credibility of the center you want to use.

You need a repair professional who is competent with track record when it comes to getting your gadget fixed. You need to ask questions before choosing your repair center. You should not rely only on the information that old customers must have given you. Go the extra miles in reading more about the fault before you visit a repair center. The information you have will go a long way in making a case when you are talking to an expert.

Difference Between USB 2.0 & USB 3.0

Universal Serial Bus (USB) jacks and ports are tools that allow you to connect computer peripherals to your computers, keyboards, external hard drives, or storage keys. The numbers following the USB symbol simply correspond to the version of the USB standard concerned, the 3.0 and 3.1 series being the most recent at the time these…

Universal Serial Bus (USB) jacks and ports are tools that allow you to connect computer peripherals to your computers, keyboards, external hard drives, or storage keys.

The numbers following the USB symbol simply correspond to the version of the USB standard concerned, the 3.0 and 3.1 series being the most recent at the time these lines are written.

In addition to the color of their connectors (version 3.0 is usually blue), it is the speed of data transfer that is the main difference between these two standards.

Thus, the USB 2.0 standard, introduced in 2000, made it possible to guarantee a transfer speed much higher than that of the previous standard: from 1.5 MB per second to theoretical 60 MB! USB 3.0, appeared in 2008, has multiplied this transfer rate by 10, reaching the theoretical rate of 625 MB per second!

Be careful, if backward compatibility is supported in the case of USB 3.0 jacks (that is, your device with a USB 3.0 port will work on your computer with USB 2.0 sockets), the speed of transfer will remain blocked to 2.0 standards …
USB standards. As early as 1995, the USB standard was developed for connecting a wide variety of devices.

The USB 1.0 standard offers two modes of communication:
12 Mb / s in high-speed mode.
1.5 Mb / s at low speed.

The USB 1.1 standard provides some clarifications to USB device manufacturers but does not change the bit rate.

The USB 2.0 standard provides speeds up to 480 Mbit / s.

The USB 3.0 standard provides speeds up to 4.8 Gbps.

In the absence of a logo the best way to determine whether these are USB devices at low or high speed is to consult the product documentation as long as the connectors are the same.

Compatibility between USB 1.0, 1.1 and 2.0 devices is assured. However, using a USB 2.0 device on a low-speed USB port (ie 1.0 or 1.1) will limit the bit rate to 12 Mbps. In addition, the operating system may display a message explaining that the flow will be restricted.

USB port:

There are two types of USB connectors:
The so-called type A connectors, whose shape is rectangular and generally used for devices low in bandwidth (keyboard, mouse, webcam, etc.);
The so-called type B connectors, whose shape is square and used mainly for high-speed devices (external hard drives, etc.).

Description: USB Type A and Type B Connectors

1. Power + 5V (VBUS) 100mA maximum
2. Data (D-)
3. Data (D +)
4. Mass (GND)

USB bus operation

The USB architecture has the characteristic of providing power to the peripherals it connects, up to a maximum of 15 W per device. It uses a cable consistent of four wires (the GND ground, the VBUS power supply and two data wires called D- and D +).

Description: the USB cable

The USB standard allows the chaining of devices, using a bus or star topology. The devices can then either be connected one after the other, or branched.

The branching is done using boxes called “hubs”, with a single input and multiple outputs. Some are active (providing electrical power), others passive (powered by the computer).

Description: Bus topology of USB ports
Description: Star topology of USB ports

The communication between the host (the computer) and the peripherals is done according to a protocol (communication language) based on the principle of the token ring. This means that the bandwidth is shared temporally between all connected devices. The host (the computer) sends a sequence start signal every millisecond (ms), a time interval during which it will simultaneously give the “speech” to each one of them. When the host wants to communicate with a device, it sends a token (a data packet, containing the device address, encoded on 7 bits) designating a device, so it is the host who decides the “dialogue” with peripherals. If the device recognizes its address in the token, it sends a packet of data (8 to 255 bytes) in response, otherwise, it forwards the packet to other connected devices. The data that displaced are coded according to the NRZI coding.
Since the address is 7-bit coded, 128 devices (2 ^ 7) can be simultaneously connected to a port of this type.