Data Doctors: Are extended warranties on computers worth it?

Practically anyone selling you a computer will likely try to get you to pay a little extra for a “protection plan” that goes above and beyond the standard factory warranty. Should you go for it?

Q: Are computer extended warranties worth buying?

A: No matter what tech device you buy, practically any retailer will likely try to get you to pay a little extra for a “protection plan” that goes above and beyond the standard factory warranty.

In some cases, it seems like such a small amount of money that you may think, “Why not get the extra coverage?”

But the credit card you made the purchase with may already provide basic protection.

Many of the electronic devices you’ll buy today don’t have the moving parts that would commonly wear out in the past, making the “protection” even less likely to pay off.

In the vast majority of cases, you’re simply improving the profitability of the sale for the retailer — which is why you’re seeing it virtually everywhere.

It’s not covered

When it comes to computers, there are a variety of reasons that buying “extra protection” up front can be a waste of money.

First and foremost, these protection plans generally only cover hardware components, which is rarely what causes aggravating computer problems.

In our 30-plus years of servicing computers, the vast majority of issues that we see are software- or operating system-based, which isn’t covered by most extended warranties or protection plans.

Retailers know most consumers don’t realize this, and won’t take the time to read the fine print. Even when some form of coverage includes the operating system, it means they will return the computer to the factory settings.

That means the stuff you really care about — your programs, data files, browser settings, printer drivers and desktop icons — are all going to be wiped out.

When you get your computer back from this type of “warranty” service, the burden of reloading your programs, restoring your data files (hopefully you had them backed up), reinstalling printer drivers and getting the computer to work the way it used to, is all on you.

Warranty service can also take a lot longer depending upon your device as large retailers may require the device to be shipped to a central repair facility in another state.

Maintenance plans

If you’re going to pay for extra coverage on a computer, it’s best to get a plan that covers software-based issues and includes data backup and restoration. Another thing it should address is the one that very few computer owners ever think about: maintenance.

The reason so many computer problems become complicated, time-consuming and expensive to fix is because most users tend to ignore the signs of a problem when they first appear.

They don’t reach out for help until the computer becomes unbearable to use, which means it’s likely loaded with problems by then. Imagine how expensive car repair would become if you never maintained your vehicle and waited until it

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Two Chinese teams claim to have reached primacy with quantum computers

The Pan team’s optical quantum computer uses a 144-mode interferometer to solve a Gaussian boson sampling problem with a factor-of-1024 speedup in computational time relative to a classical computer. Credit: Chao-Yang Lu/University of Science and Technology of China, via Physics

Two teams in China are claiming that they have reached primacy with their individual quantum computers. Both have published the details of their work in the journal Physical Review Letters.

In the computer world, quantum primacy is the performance of calculations that are not feasible on conventional computers—others use the term “quantum advantage.”

Over the past several years, several working with quantum computers have claimed to have reached primacy, but thus far have been met with skepticism due to questions about whether the algorithm used was the best choice possible, including the one used by Google. In this new effort, both teams are claiming that their computers leave no room for doubt.

Both of the teams in these new efforts were working at the Hefei National Laboratory for Physical Sciences at the University of Science and Technology of China, and both were led by physicist Jian-Wei Pan, who has become well known for his work with quantum entanglement.

In both efforts, the goal was to build a quantum computer capable of calculating the output probabilities of quantum circuits—a task that is relatively simple for a conventional computer to perform when there are just a few inputs and outputs. It grows increasingly difficult as the numbers rise until it becomes unfeasible.

In the first effort, the researchers used a photonic approach in building their computer. To tackle the problem of estimating output probabilities, the team used Gaussian boson sampling as a way to analyze the output. In this case, output from a 144-mode interferometer. Under this scenario, there could be 1043 possible outcomes. The researchers claim their machine was capable of sampling the output 1023 times as fast as a supercomputer, which, they further claim, shows quantum primacy.

The second effort involved creating a superconductor-based that was capable of calculating using 66 qubits—only 56 of them were used, however. Still, the researchers found the machine capable of estimating sample calculations up to 1000 times as fast as the best supercomputers, which, they claim, shows that they achieved primacy.


Chinese photonic quantum computer demonstrates quantum supremacy


More information:
Han-Sen Zhong et al, Phase-Programmable Gaussian Boson Sampling Using Stimulated Squeezed Light, Physical Review Letters (2021). DOI: 10.1103/PhysRevLett.127.180502

Yulin Wu et al, Strong Quantum Computational Advantage Using a Superconducting Quantum Processor, Physical Review Letters (2021). DOI: 10.1103/PhysRevLett.127.180501

© 2021 Science X Network

Citation:
Two Chinese teams claim to have reached primacy with quantum computers (2021, October 27)
retrieved 30 October 2021
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The Benefits Of Learning How To Program Computers

Programming
If it’s essential to get a brand new laptop for programming or coding purposes and are unsure the place to start out, this quick information will help you discover the right setup for your needs. While most developers sit at their desk when coding with the pc plugged-in, should you really feel the necessity to code on the go, then be sure to get a laptop that is received an awesome battery life. One of the reasons for most programming errors is improper use of syntax.

These languages, which are designed by humans, are primarily based on the so-referred to as rules of syntax and semantics. In structured programming, this system is break up into small codes that may easily be understood. There are lots of programs which have options that can be utilized to verify the syntax of each command in addition to integral features that you simply need to make the most of.

With so many resolutions obtainable right now, it is arduous to select a laptop computer that is just right for programming. This is the rationale why it is enjoyable and straightforward for a human being such as you to learn one or a number of computer programming languages.

Programming languages often do not final that lengthy. Different languages might be tough to study and so they might be easier to know if they begin by learning yours. You will have a laptop computer that can deal with a number of tasks simultaneously like operating a browser, an area server and the code editor.

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I still bear in mind the thrill I felt once I wrote my first primary program on the BBC Micro in school. In programming individuals, we usually make use of a number of languages the particular person can understand like English or French. For any kind of programming that’s above entrance-end improvement, it is advisable that you get a laptop computer that carries an SSD. It options Vim coding assist, … Read More...

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The Benefits Of Studying How To Program Computers

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This text will tell you invaluable information about writing a customized programming language. Programming languages often don’t last that lengthy. Different languages can be difficult to be taught and so they is likely to be simpler to know if they begin by studying yours. You’ll need a laptop that may handle a number of duties simultaneously like operating a browser, a local server and the code editor.

For front-finish growth work, it is best to be able to get away with a laptop computer that uses either a Core i3 or Core i5 dual-core processor. Little do we know that this job can simply be performed if we utilize the constructed-in features of the programming language.

Correct names utilized in capabilities and variables make the coding course of easier. One other essential aspect of language design is coping with this system’s complexity. Not solely auto code completion and syntax highlighting however help are available as effectively for the Python version 2.7 and three.5.

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Nearly all of the packages let you break the program into functions. I met some good friends once I was writing programming tutorials for numerous Atari ST diskzines within the Nineties who I nonetheless hear from to this day. A unique kind of procedural programming, structured programming affords additional instruments that can be utilized to cope with the problems produced by bigger applications.

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This text will inform you priceless information about writing a custom programming language. In programming individuals, we normally make use of several languages the person can understand like English or French. For any kind of programming that’s above entrance-end development, it’s really helpful that you get a laptop computer that carries an SSD. It options Vim coding support, a Unicode assist together with an extended keyboard.

Moreover, syntax highlighting … Read More...

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The Advantages Of Studying How To Program Computers

Programming
This article will inform you invaluable information about writing a custom programming language. Programming languages often don’t last that long. Different languages can be troublesome to study they usually could be easier to grasp if they start by studying yours. You have to a laptop that can deal with multiple tasks concurrently like operating a browser, a neighborhood server and the code editor.

It needs to be prepared primarily based on the sources your chosen programming language permit. Within the good previous days of the Spectrum you could possibly buy magazines which characteristic pre-written games in basic code that you could type into your personal Spectrum and hope this system ran okay.

Furthermore, syntax highlighting is accessible languages like Python, Ruby, Perl, Java etc. Books on fundamental programming had been also launched that may take you thru the basics of commands and construction, and find yourself programming a whole recreation.

It provides facility of writing and operating code in nearly 50 distinct programming languages. Thirdly, creating a programming language gives you a better understanding of how computer systems work and the way they work. Programming languages do evolve as a result of there’s a continuous seek for environment friendly transformation of human language into machine code.

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This is an indisputable fact that the iPad shouldn’t be probably the most favoured hardware alternative for programming purpose. Programming may also be a number of fun and an ideal passion. In case you’re doing front-finish internet development, then you definitely’ll need a basic machine that may run a text editor and a browser to verify your progress. The creation of a customized programming languages could be very helpful in a variety of ways.

Creating your individual programs can change into a actuality with the various glorious programming languages accessible reminiscent of App Recreation Kit which allows you to create software program that runs on multiple units. It is best to make a flow chart to your program, or write its algorithm earlier than you start with the process of writing this system.

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Since pc science was acknowledged as a distinct tutorial area in Nineteen Sixties, it has made nice strides particularly in making issues lots simpler for humans. Some applications also cope with cost and buying carts to make life simpler. Entrance-end developers will want a laptop that carries a display screen with a higher than average decision, since they’re going to want to test if their websites are responsive on plenty of resolutions.

Buffer gives facility of code auto completion and syntax highlighting for a lot of programming languages that embrace AWK, Ada, ASP, ActionScript, C++, C, Arduino, C#, Python, Ruby, SQL, … Read More...

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The Advantages Of Studying How To Program Computers

Programming
If that you must get a new laptop computer for programming or coding purposes and are unsure where to start out, this brief information will aid you discover the proper setup to your wants. Furthermore, syntax highlighting is offered languages like Python, Ruby, Perl, Java and so forth. Books on fundamental programming were additionally launched that would take you thru the fundamentals of commands and structure, and end up programming a complete game.

Buffer affords facility of code auto completion and syntax highlighting for many programming languages that include AWK, Ada, ASP, ActionScript, C++, C, Arduino, C#, Python, Ruby, SQL, JavaScript, Java, PHP, Perl, Puppet, INI, CSS, R, Progress etc.

For front-finish improvement work, it is best to be able to get away with a laptop that makes use of either a Core i3 or Core i5 twin-core processor. Little do we all know that this task can easily be carried out if we make the most of the constructed-in capabilities of the programming language.

Programming languages normally do not last that long. Different languages will be troublesome to learn they usually is likely to be easier to know if they start by studying yours. You have to a laptop computer that can deal with multiple tasks concurrently like running a browser, an area server and the code editor.

7 Efficient Apps That Are Suitable For Doing Programming On The IPad

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How To Create A Programming Language

This article will let you know valuable details about writing a custom programming language. Languages produced usually start with ideas, which conceal hardware and make use of representations which might be extra convenient to human programmers. In the same manner, writing a pc program requires humans to make use of languages that may be learn by the computer reminiscent of C, Pascal, Java, and Python.

Entrance-finish work implies about four-8GB of system reminiscence installed, since you’ll probably use a code-editor like Chic Text and a number of browsers to inspect your work. To be able to cross on instructions to computers, programming languages are used.

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Programming
I still remember the thrill I felt once I wrote my first primary program on the BBC Micro in school. For game, 3D or cell app improvement you’ll want a excessive efficiency laptop that may render all the pieces in actual-time. It gives needed assist to syntax highlighting for a number of programming languages corresponding to C, Apache, HTML, CSS, Go, PHP, Python, Perl, JavaScript and so forth.

To make work simpler a programmer will get all amenities which may make his work better with the provision of directions within the form of applications which is named … Read More...

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