a4

Read Cult of Mac’s latest posts on a4:

iPhone and iPad are susceptible to widespread CPU flaw, too [Update]

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Apple A5 chip
Apple's A series chips could also be vulnerable to a nasty flaw.
Photo: Apple

A nasty CPU flaw that leaves computer users’ most sensitive data at risk is also present in iPhone and iPad processors, Apple confirmed Thursday.

The “Spectre” bug has been discovered in the mobile ARM processors that power iOS devices, as well as Apple TV — but there’s probably no need to panic.

Apple Will Turn To TSMC For A7 Chip When Deal With Samsung Expires [Rumor]

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Taiwan Semiconductor Manufacturing Co. (TSMC) will reportedly land a deal for Apple’s future “A7” processors when the Cupertino company’s current contract with Samsung expires in 2014.

Samsung has been responsible for Apple’s mobile chips since the introduction of the A4 back in 2010, but Apple has seemingly been looking to take its business elsewhere since the pair became embroiled in a series of lengthy legal battles.

Apple Fires Samsung As MacBook, iPad Battery Maker

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Samsung is no longer supplying Apple's iPad batteries.
Samsung is no longer supplying Apple's iPad batteries.

Apple has reportedly further distanced itself from rival Samsung by switching its suppliers for iPad and MacBook batteries. The Cupertino company has been seemingly working to avoid Samsung’s components since the companies became embroiled in various legal battles all over the world.

Samsung Backs Apple Into A Corner With 20% Price Hike On All Mobile Processors [Report]

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Samsung currently supplies all of Apple's mobile processors.

Samsung has dealt Apple a nasty blow by increasing the price of its mobile processors — the ones built into every iPhone, iPad, and iPod touch — by 20%. According to a person familiar with negotiations between the two companies, Apple initially disapproved the price hike, but was forced to accept it with no replacement supplier available.

Apple Confirms iPhone 3GS Will Soon Be Discontinued [Report]

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It was nice knowing you, iPhone 3GS.
It was nice knowing you, iPhone 3GS.

As expected, the 8GB iPhone 4 replaced the iPhone 3GS as the most affordable iPhone following the announcement of the iPhone 5 yesterday. So what’s going to happen to the iPhone 3GS now? Well, as you may have guessed, it’s going to be killed off. Apple has reportedly confirmed that when existing stock runs out, the its third-generation smartphone will be no more.

iOS 5.1.1 Update Doesn’t Kill The Redsn0w Jailbreak For A4 Devices [Jailbreak]

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Feel free to upgrade your A4 devices to iOS 5.1.1 without losing the ability to jailbreak.
Feel free to upgrade your A4 devices to iOS 5.1.1 without losing the ability to jailbreak.

We’d usually advise jailbreakers to avoid Apple’s iOS updates just after their release, until hackers have confirmed that the latest software can be jailbroken. But one report claims that it’s perfectly safe to update your A4-powered devices to iOS 5.1.1 without losing your Redsn0w jailbreak.

Apple’s New A5X Processor May Not Be Suitable For The iPhone [Report]

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Image courtesy of Engadget

Apple introduced its new A5X processor in the third-generation iPad yesterday, and based on the company’s previous moves, we’re expecting the chip to appear in its next iPhone. However, that may not be the case. According to analysts, the chip requires too much power to be used in the iPhone, and Apple will need to create a more power-efficient chip with a new manufacturing process for its next smartphone.

Why You’ll Probably Never Own A Mac With An ARM Processor [Feature]

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Image via Ars Technica

UPDATE: This article was written in 2012 and some of its predictions didn’t pan out. For a much more recent look at this subject, read 5 reasons Apple should dump Intel processors [Opinion].

 

Ever since Apple launched the new MacBook Air, analysts and Mac fans alike have gone wild speculating that Cupertino might dump Intel and use custom-made, ARM-based chips in their laptop line instead. Yesterday, more fuel was thrown on the fire when it was revealed that an Apple intern worked on porting OS X to ARM devices back in 2010. Even Intel has said it would be “remiss” of them to dismiss the possibility that ARM might steal their Apple business. On the surface of things, it looks like ARM might make its way to our MacBooks soon.

Is ARM really a threat to Intel? Yes, absolutely, and especially as we transition into Apple’s Post-PC world. But there is next to no chance Apple will replace Intel chips for ARM-based ones any time in the next five years. In fact, there’s a good chance the exact opposite could be true, and Intel chips will be powering our iPhones and iPads by then. Here’s why.

iOS 5.1 Beta Suggests Next-Gen Quad-Core iPhones And iPads [Report]

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While we’re all expecting Apple to introduce a quad-core A-something processor to its iOS devices at some point in the future, it appears there are already references to the devices in the company’s latest iOS 5.1 beta release. In addition to support for Apple’s latest dual-core A5 processor, the software also support quad-core processing, according to one report.

Apple’s Television Set Will Be Powered By A Custom-Built Processor Like Its iOS Devices [Rumor]

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Like its iPhone, iPad, and iPod touch which utilize the company’s A4 and A5 processors, Apple’s upcoming television set will be powered by a custom-built chip made specifically for the Cupertino company. Sources claim that a number of manufacturers are currently bidding for Apple’s order, including Taiwan Semiconductor Manufacturing Company (TSMC), Advanced Semiconductor Engineering (ASE), and Siliconware Precision Industries (SPIL).

Infinity Blade II: 40 New Locations, 10 Million Hitpoint Baddies And More, More, More

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Some people count down the days until Christmas, but for me, Christmas is coming early this year with the December 1st debut of Chair Entertainment’s Infinity Blade 2, their widely-anticipated sequel to a game I still think is an elegiac action masterpiece.

I’ve only got another three weeks to wait, but in the meantime, Justin Davis over at IGN got a chance to take Infinity Blade 2 for a hands-on. What to expect? Don’t expect just a couple new areas, a few new helmets and a cool new sword or two. This isn’t just a phoned-in sequel, it’s a generational leap at least four times beefier than the first game… already one of the most sizable titles on the App Store.

How Would Apple Make A $50 iPhone? [iFixIt Q&A]

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Earlier this week, a report surfaced claiming that Apple is currently working on a more affordable model of its iPhone 4, which is set to launch alongside the iPhone 5 later this year. The device will reportedly be aimed at those looking to purchase an iPhone with a tight budget, and will have just 8GB of storage in order to keep costs down.

This got us thinking: how would Apple bring down the price of an iPhone 4 to appeal to low-cost subscribers? How exactly would they make an iPhone 4 that would cost $50 or so with a two year contract? We’ve been speaking to Miroslav Djuric of iFixita popular online repair shop that produces how-to repair guides and tear-downs — to try and find out, and we think we know how Apple would do it. Here’s how.

This Is How ARM Saved Apple From Going Bust in the 90s

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Apple has built the majority of its modern day fortunes upon the back of the low-voltage ARM chipset. Ever since the first iPhone, ARM chips have driven Apple’s biggest and best-selling products. Thanks to the success of iOS, which only runs on ARM, the futures of Apple and ARM are so intertwined that Cupertino now designs its own custom specced ARM chips.

Given how forward thinking Apple is, it probably wouldn’t surprise you to hear that the Mac maker once bought a 43% stake in ARM back in the early 1990s. What probably would surprise, you, though, is that Apple sold that stake at a loss… and that sale saved the company from total bankruptcy.

Apple’s A4 Chip Could Be The Minimum Requirement For Running iOS 5

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With iOS 4, Apple left the original iPhone and iPod Touch behind in the dust of iOS 3.1.3, and even the iPhone 3G could not avail itself of some of iOS 4’s most notable features, like multitasking. As long as you at least had an iPhone 3GS, though, you’d be fine.

Given how many problems the iPhone 3G hardware had running iOS 4.0, it should come as no surprise that Apple is hoping to consign that hardware to the dustbin when they debut iOS 5 at WWDC next month. What may be more surprising is that the iPhone 3GS will go into the dustbin too.

Apple A5 Dual-Cores Clocked Lower Than A4 in Early Benchmarks

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Early benchmark tests of Apple’s new dual-core A5 chip featured in the iPad 2 have revealed that each processing core is actually clocked at a slower speed than the previous A4 chip, which features in the original iPad, iPhone 4, and the latest iPod touch.

Tests performed by iOSnoops show that overall, each of the A5’s cores runs at least 10% slower than the single core featured in Apple’s A4 chip, running at around 890 MHz in comparison to the 1 GHz A4. The speed of the A5 fluctuates depending on the applications it’s running however, with its lowest speed clocked at 861 MHz and its highest at 894 MHz.