i3, i5, i7, Quad Core, Dual Core Processors. How to they Differ?

By Rich

If you’re in the market to buy a PC and you’re looking for the best value for money, you’ve likely asked yourself: “what’s the difference between Dual and Quad Core and what about i3, i5, and i7?”
This guide offers a basic explanation of these five types of processors and will help you determine the best for your needs.

This guide will answer the following questions:

• What is a processor?
• What is a core?
• What is a multi-core processor?
• Why do I need multiple cores?
• How many cores do i3, i5, and i7′s have?
• How Do Core 2 Duo and Core 2 Quad Compare with Core i3, i5, and i7?
• What Does the “i” Stand for in i3, i5, and i7?
• Do I need a Dual/Quad core or an i3/i5/i7?

What is a Processor?

The Processor or Central Processing Unit (CPU) component of your PC that carries out instructions given to it by your Operating System (Windows.) Think of the processor as a brain that receives instructions and messages (i.e. “HOT HOT HOT Burning!!!”) and sends out instructions to other hardware (i.e. “Arm: lift hand” or “mouth: open; vocal chords: scream”.)

What is a Core?

A standard processor has one core (single-core.) Single core processors only process one instruction at a time (although they do use pipelines internally, which allow several instructions to be processed together; however, they are still run one at a time.)

What is a Multi-Core Processor?

A multi-core processor is composed of two or more independent cores, each capable of processing individual instructions. A dual-core processor contains two cores, a quad-core processor contains four cores, and a hexa-core processor contains six cores.

Why do I Need Multiple Cores?

Multiple cores can be used to run two programs side by side and when an intensive program is running (AV Scan, Video conversion, CD ripping etc.) you can utilize another core to run your browser to check your email etc.
Multiple cores really shine when you’re using a program that can utilize more than one core (called Parallelization) to improve the program’s efficiency. Programs such as graphic software, games etc. can run multiple instructions at the same time and deliver faster, smoother results.
So if you use CPU-intensive software, multiple cores will likely provide a better experience when using your PC. If you use your PC to check emails and watch the occasional video, you really don’t need a multi-core processor.

How many cores do i3, i5, and i7′s have?

• A Dual-core processor has two cores.
• A Quad-core processor has four cores.
• An i3 processor has 2 cores.
• An i5 processor has 2 or 4 cores (depending on the model you have.)
• An i7 processor has 2, 4 or 6 cores (depending on the model you have.)

How Do Core 2 Duo and Core 2 Quad Compare with Core i3, i5, and i7?

Added 2012/01/21:
If you’re looking for a good value PC and have decided on a Core 2 Duo, Core i3, or Core i5 (all best in value for casual computer use), please read on:
Core 2 Duo processors run two threads; i3′s and i5′s run four threads. Core 2 Duo processors are socket 775 (45/65nm); Core i3 and i5 processors are socket 1156 (nm) but only work with DDR3 RAM (Some Core 2 Duo’s work with both DDR2 and DDR3.)
For desktops, I’d stay clear of core 2 duos; for laptops, it all depends on your usage. As laptops aren’t as easy to upgrade, buying dated technology might burn you in the future when you find your Core 2 Duo PC’s motherboard only supports 4GB RAM–for example.
i5′s come with “turbo boost”; however, i3′s overclock very well if that’s your thing. That’s where I’d put my money if you’re considering Core 2 Duo, i3, and i5: the i3 provides the best value for most casual PC users.
While I focused on i3, i5, and Core 2 Duo to answer a reader’s question, the principles apply when comparing i5, i7, and Core 2 Quad. I’d go for the i5 unless you are willing to pay a premium for a little more performance.

What Does the “i” Stand for in i3, i5, and i7?

Added 2012/03/03:
I searched around the web and found speculation that the “i” stands for “Intel”; however, there’s no substantiation to that claim. After coming up with no explanation, I sent an email to Intel tech support. Here’s what they had to say (emphasis added):

Hello Rich,
Thank you for contact Intel(R) Technical Support.
We have received your request. Please be informed that the letter ‘i’ on the model number of the Processor does not stand for any particular detail, technology or feature presented on the product.
This is just a marketing brand name decision. For any additional information, please do not hesitate to contact us back.
Thank you for your understading (sic).
Sincerely,
Alvaro A.
Intel Customer Support

The i# processors are just branded that way with no special meaning.

Do I need a Dual/Quad core or an i3/i5/i7?

The reason you’re reading this guide is to find out which type of processor you need. I want to give a simple answer and, if you have more to add, please let us know in the comments. As with all computer hardware, the type of processor you need depends on your needs, for how long you want your computer to stay current, and your budget.
Here’s a very simple breakdown of what you should look to buy depending on your computing needs. All suggestions assume you are buying a pre-built PC (so you don’t have to worry about motherboard and RAM specs and so you don’t have to worry about upgrade compatibility.)
If you:

• Browse the internet, check email, and play the occasional flash game (like Farmville): Get a single core netbook or desktop (and don’t spend more than $300 USD — Updated 12/01/21.)
• Do your word processing, spreadsheets etc. on your PC, listen to music often, and watch movies, get a dual core or i3.
• Play the occasional game and are happy with lower resolution and lower quality graphics (my suggestion assumes the graphics processor on the pre-built PC will be well-matched for the processor suggestions), watch HD movies etc., get a dual core or i5.
• If you do graphic publishing, music creation, programming (and compilation), watch HD movies, and like to play visually appealing games, get a Quad core, i5, or i7.
• If you like to have the very best hardware and play the most graphically intense games, get an i7 Extreme.

I realise my suggestions are somewhat generic but should point you in the right direction.

source  http://mintywhite.com/more/hardware-more/i3-i5-i7-quad-core-dual-core/

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Apple Macbook Pro Md311ll/a 17-inch Laptop

Apple Computer has done some serious work this year on its MacBook Pro line and the latest one that we have looked at the 17-inch MD311LL/A shows that Apple isn't relying on its iPod and iPhone for its revenue. It shows that even though it uses processors built by others - Intel, in this case - it is still a serious computer company.

Interestingly, it is a computer company whose focus is on delivering some of the narrowest and lightest units on the market. Like the other MacBooks, Apple has used a single casting for the entire machine as a single unit that is less than an inch thick and while it is still 17-inches wide, it still comes in at little over five pounds which does make it a lightweight laptop that can be used for a variety of features.

There is little double that Apple knows what do to with computer components. For example, although it will only support a maximum of 8 GB of memory, the MD311LL/A 17-inch MacBook actually uses two separate video systems to deliver seamless video. For heavy duty work, it supports the AMD Radeon HDG770 video chipset with its own dedicated 1GB of GDDR5 RAM. At the same time, the Intel 3000 chipset is built into the system software so that it can rely on the Intel chipset for everyday video delivery.

The 17-inch MacBook Pro, like the others in the MacBook line, supports Thunderbolt technology which is similar to the old Applenet chain technology that allowed you to chain together Apple devices on their own dedicated high-speed network for greater throughput. In other words, if a device has the right Thunderbolt Display adapter, you can simply hook them together in a chain that can deliver up to 10 Gbps. Its Apple's proprietary network but it will also support, if the adapter is right, DVI, HDMI and other specialized devices.

Like other state-of-the-art laptops that use the quad-core I7 processor, Apple makes use of Intel's built-in multi-threading technology that allows each processor of the quad core to perform up to two tasks at the same time. In other words, you can have one device performing up to eight simultaneous tasks. Apple also makes use of Intel's direct access technology that lets each processor have full access to all available system memory on the 1333 front-side bus. The processor runs at its standard clock of 2.4 GHz and takes advantage of Intel's Turboboost mode to 3 GHz when needed.

Standard storage is handled by a 750 GB 5400-spin hard drive. This MacBook also supports an 8X CD/DVD Superdrive.

One interesting feature that all MacBooks share is the larger-than-normal glass-faced touchpad. Instead of including the extra buttons that other laptops include the MacBook's touchpad is extra large and will support functions that are similar to a more standard laptop which has the traditional left and right buttons plus a touchpad. It doesn't take long to learn to use this feature.

One thing to note, though, about the MacBook is that since it is made from a single aluminum case, it might run a little warm although they do have a pretty sophisticated cooling system to keep things running as cool as possible.

The MacBook also supports Bluetooth 2.1 and ultrafast WiFi 802.11 b/g/n, as well as having a standard tri-speed LAN port that supports 10/100/1GB speeds so it can be part of an over-the-air network, use public hotspots or be part of your home network.

It also has 3 USB 2.0 ports, a Firewire 800 port, and ExpressCard slot.

Overall, this is a fine update to a very good series and is a serious machine for users.

By: Roberto Sedycias

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Laptop Repair Tips: Preventing Laptop System Crash

If your laptop’s system crashes, this only means that there is something wrong with the machine. It needs laptop repair service so that you can use your computer again. But before this thing happens, you can actually do something to take care of your computer. Regular maintenance is an effective way of doing so. This can prevent laptop repair problems from happening. You can avoid instances wherein your system will crash. The signs of a crashed system include the laptop turning off by itself or a blue screen on your monitor. Here are the things that you need to do for the regular maintenance for your laptop:
1. Install updated antivirus software.
By installing anti-virus software, you can prevent laptop repair problems. The software is cost effective solution of preventing the entry of spyware, adware and viruses to your laptop. If these malwares will enter your system, they can delete files, send your files to other computers, slow down your computer, and more. There are many anti-virus software applications that you can download online. Update your software as well.
2. Use minimal programs at one time.
Sometimes, you go hyperactive when you use your laptop. You might let it do some difficult multi-tasking jobs. You may listen to music, browse the Internet to research about something, view images online, copy and paste these images to your word document, and more. However, the more things you let your system do all at once, the more chances there are of your system crashing in the end. When your system crashes, you will need laptop repair. To avoid this problem, open only windows and software that you need to avoid letting the system overwork.
3. Clean the laptop regularly.
You can easily clean the external parts of your laptop to maintain its appearance of being shiny and new. However, it is also important not to neglect the necessary internal cleaning of the machine too. Here are the things that you can do for laptop cleaning:
• Delete all the unused and unnecessary files from the computer. You can start doing so with the received files that you have stored in your laptop. These are usually files that come from other people that you no longer need or even read. You can discard them for the sake of your laptop’s system.
• Run the disk de-fragment program in your laptop. This is usually found built-in to the laptop already. If you run this program, it can gain more free space for the computer. This way, your laptop will work faster. For your first time de-fragmenting your computer, it usually takes time.
• Save files to an external storage device. For instance, you can save some of the documents that you rarely use in a Flash drive. This can help free some space from your system.
4. Do not use unauthorised material.
To avoid the access of viruses into your laptop, do not download any files from an unauthorised website or download email attachments from suspicious or unknown sources. Moreover, do not just use CDs or USB drives in your laptop if you do not know the data stored in it.





Published At: Isnare.com Free Articles Directory - http://www.isnare.com/
Permanent Link: http://www.isnare.com/?aid=832914&ca=Computers+and+Technology

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The best laptop

By: Abbatha Odetta

There are a number of laptops available in the market these days. With each manufacturer claiming that their laptop is the best incorporating cutting edge technologies into them. There is a new laptop being launched almost every week with a plethora of them being launched at electronic exhibitions.

So how can one decide which is the best laptop among them all? The fact is the laptops are so closely matched in features that if you declare a particular model of laptop as the best. You will have at least 10 other laptops manufactured by other computer manufacturers that has the same configuration. Besides each laptop fits a particular need or demand for it in the market. So there cannot be one laptop that is best suited to the needs of every individual in the computer users’ universe.

So how about we build our own version of the best laptop and see how long it takes for the manufacturers to actually build one and launch it in the market.

Display – The best laptop should have a mutitouch touch sensitive surface with support for 3D graphics rendering. It must have the capacity to recognize gestures and sensors and cameras that can be configured to track retina movements. We could have an input mechanism where you blink twice in quick succession or focus on a particular button to press it.

Storage – The storage of the future is already here in the form of cloud computing where you store your data on cloud farms and access it from any device you want. The rate of transfer and reading and writing data needs to be very fast.

Keyboard – maybe it is time to bid goodbye to keyboards. Touch screen surface keyboards with haptic feedback could easily replace the little keys on your laptop.

Sound – How about a technology where you would not need earphones the sound waves can be focused on a user so only they can hear and not disturb the people around them.

Processor – A faster and smaller processor which consumes very little power and draws energy from an embedded solar panel. Overheating has always been a problem with processor so we need a processor which can remain cool at all times.

Frame – A screen that can fold along with the motherboard just like you would roll a piece of paper and slip it in your pocket. With foldable solar panels forming a transparent layer or lining the back of the screen to draw power from the sun to run the laptop.

The possibilities are endless, what do you wish to have in the best laptop?



Article Source:
http://www.articlebiz.com/article/1051535524-1-the-best-laptop/

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Top of Class Laptop Review: Toshiba Satellite L735

Toshiba Satellite L735 laptop is a powerful laptop that would suit a multi-tasking professional or even an avid gamer. It has a number of features that you might be interested in. This laptop is very portable and at the same time, it does not compromise reliability, stylishness, and affordability. It also has a large storage space which would permit you to save a significant quantity of data without hurting its performance.

If you are a multi-tasker, gamer, or even just somebody who wants to get stuff done fast; then this high speed laptop is unquestionably for you. This 13 inch laptop would keep you productive and entertained anytime and anywhere. With its 13.3" display, multicore processing power, a high quality sound system, and superb connectivity, you will certainly not run out of things to do with this laptop.

Below are the general pros and cons of this Toshiba Satellite L735-S3375 13.3-Inch Laptop:

Pros:

Build and Design
Very sleek, the Toshiba L735-S3375 is designed with a matrix silver, high gloss fusion finish. This laptop without doubt appeals to professionals who would want a simple, classy look for their laptop.

Hard Drive and Core Processor
This laptop contains a 500 GB hard drive and a 2.4 GHz Intel Core i5 dual core processor. It also has 4 GB of installed DDR3 RAM. This would permit 3D gaming and limitless multimedia and graphics management.

Efficiency and Flexibility
This laptop is very efficient when multitasking. You can do several tasks like working in a document, surfing, and listening to music all at the same time. You can also switch to power saver mode to performance mode in a snap.

Display
This Toshiba L735-S3375 has a brilliant LED high resolution display. From its 13.3 inch screen, this laptop is equipped with a Tru-brite LED backlight and a HD 720p screen resolution. It provides a clearer and sharper viewing for movies and gaming.

Sound
With built-in speakers by Harman/Kardon, the sound offers clear resonance. The sound is made with a Maxx Audio enhancement and Dolby Advanced Audio system so you can expect to listen to clear and exceptional stereo quality whether you are listening through your headphones or from your laptop speakers.

Optical Drives
This laptop has a built-in optical drive and also a super multi DVD with label flash drive which would let you play your CDs and DVDs. This means that you can play, share, or load your favorite movies and music unhindered. It also has a Blu-Ray Disc ROM capability.

Cons:

Build and Design
The Toshiba L735-S3375 weighs 4.6 pounds. For some people, it would be too heavy to carry a 2 kilogram laptop around. Also, some people with larger hands and fingers would find it harder to maneuver around the small keyboard and trackpad.

Core Processor
It only has 2.4 GHz processor. Some laptops in the market would offer until 3.0 GHz.

Display
It has a reflective screen which may distract you when you are working outdoors.

Other than those mentioned above, these are very minor criticisms for an outstanding laptop with great specifications. Numerous people considered this a powerful laptop for managing a huge amount of content. It has a great price for its value and it is comparably portable. It is also relatively easy to transport around. It weighs reasonably for a laptop as powerful as this. The size allows the user easy storage if limited space is an issue.

Article Source:
http://www.articlebiz.com/article/1051530206-1-top-of-class-laptop-review-toshiba-satellite-l735/

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