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•	The delivered item(s) has value to the customer on a standalone basis; and

•	If the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company.

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•	It is commensurate with either of the following:

•	The Company's performance to achieve the milestone; or

•	The enhancement of value of the delivered item or items as a result of a specific outcome resulting from the Company's performance to achieve the milestone.

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•	It relates solely to past performance.

•	It is reasonable relative to all of the deliverables and payment terms (including other potential milestone consideration) within the arrangement.

(1)	Included in "Short-term investments" and "Long-term investments" on the Company’s Condensed Consolidated Balance Sheets.

(2)	Included in “Prepaid expenses and other current assets” on the Company’s Condensed Consolidated Balance Sheets.

(3)	Included in “Other accrued liabilities” and “Other non-current liabilities” on the Company’s Condensed Consolidated Balance Sheets.

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•	Supercomputing with many-core commodity processors driving increasing scalability requirements;

•	Increased micro-architectural diversity, including increased usage of many-core processors and accelerators, as the rate of per-core performance increases slows;

•	Data needs growing much faster than computational needs;

•	Technology innovations in storage allowing for faster data access such as NVRAM and SSDs;

•	The commoditization of HPC hardware, particularly processors and interconnect systems;

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•	Electrical power requirements becoming a design constraint and driver in total cost of ownership determinations;

•	Increasing use of analytics technologies (Hadoop, NoSQL and Graph) in both the HPC and big data markets;

•	The growing commoditization of software, including plentiful building blocks and more capable open source software; and

•	Cloud computing for cost-effective computing on loosely-coupled HPC applications.

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•	The delivered item(s) has value to the customer on a standalone basis; and

•	If the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in our control.

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•	It is commensurate with either of the following:

•	Our performance to achieve the milestone; or

•	The enhancement of value of the delivered item or items as a result of a specific outcome resulting from our performance to achieve the milestone.

•	It relates solely to past performance.

•	It is reasonable relative to all of the deliverables and payment terms (including other potential milestone consideration) within the arrangement.

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•	our ability to secure sufficient orders for our Cray XC30 and CS300 systems as well as upgrades and successor systems;

•	successfully delivering and obtaining customer acceptances of our Cray XC30 and CS300 systems;

•	our ability to successfully generate revenue and profitability from opportunities developed from our YarcData and storage and data management businesses;

•	our ability to scale our internal processes effectively to enable growth;

•	the level of revenue recognized in any given period, which is affected by the very high average sales prices and limited number of significant system sales and resulting potential acceptances in any quarter, the timing of product acceptances by customers and contractual provisions affecting the timing and amount of revenue recognition;

•	revenue delays or losses due to customers postponing purchases to wait for future upgraded or new systems, delays in delivery of upgraded or new systems, longer than expected customer acceptance cycles or penalties resulting from system acceptance issues;

•	our expense levels, including research and development expense net of government funding;

•	our ability to successfully and timely design, integrate and secure competitive processors for our Cray XC30 and CS300 systems and upgrades and successors systems;

•	the level of product gross profit contribution in any given period due to volume or product mix, particularly with the introduction of flexible commodity-based supercomputers, competitive factors, strategic transactions, product life cycle, currency fluctuations, acceptance penalties and component costs;

•	the competitiveness of our products and prices;

•	our ability to secure additional government funding for future development projects;

•	maintaining our product development projects on schedule and within budgetary limitations;

•	the level and timing of maintenance contract renewals with existing customers; and

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•	the terms and conditions of sale or lease for our products and services.

•	the timely availability of acceptable or customer committed components, including, but not limited to, processors, in sufficient quantities to meet customer delivery schedules at a competitive cost;

•	the timing and level of government funding and resources available for product acquisitions and research and development contracts, which has been, and may continue to be, adversely affected by the current economic and fiscal uncertainties, increased governmental budgetary limitations and disruptions in the operations of the U.S. government;

•	the introduction or announcement of competitive or key industry supplier products;

•	competitor pricing strategies;

•	price fluctuations in the processors and other commodity electronics and memory markets;

•	general economic trends, including changes in levels of customer capital spending;

•	the availability of adequate customer facilities to install and operate new Cray systems; and

•	currency fluctuations, international conflicts or economic crises, including the ongoing economic challenges in the United States, Japan and Europe.

•	the level of product differentiation in our Cray XC30 systems and successor systems. We need to compete successfully against HPC systems from both, large established companies and smaller companies and demonstrate the value of our balanced high bandwidth systems;

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our ability to meet all customer requirements for acceptance. Even once a system has been delivered, we sometimes do not meet all of the contract requirements for customer acceptance and ongoing reliability of our systems within the provided-for acceptance period, which has resulted in contract penalties and delays in our ability to recognize revenue from system deliveries. Most often these penalties have adversely affected gross profit at the time of revenue recognition through the provision of additional equipment and services and/or service credits to satisfy delivery delays and performance shortfalls. The risk of contract penalties is increased when we bid for new business prior to completing development of new products when we must estimate future system performance, such as has been required with our Cray XC30, Cray XE6 and Cray XK7 systems and will be required for subsequent systems;

•	our ability to source competitive, key components in appropriate quantities, in a timely fashion and on acceptable terms and conditions and that meet the performance criteria required. If we underestimated our needs, we could

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•	whether potential customers delay purchases of our products because they decide to wait for successor systems or upgrades that we have announced or they believe will be available in the future.

•	difficulties in successfully integrating the operations, systems, technologies, products, offerings and personnel of the acquired company or companies;

•	insufficient revenue to offset increased expenses associated with acquisitions;

•	diversion of management’s attention from normal daily operations of the business and the challenges of managing larger and more widespread operations resulting from acquisitions;

•	potential difficulties in completing projects associated with in-process research and development intangibles;

•	difficulties in entering markets in which we have no or limited direct prior experience and where competitors in such markets have stronger market positions;

•	initial dependence on unfamiliar supply chains or relatively small supply partners; and

•	the potential loss of key employees, customers, distributors, vendors and other business partners of the companies we acquire following and continuing after announcement of acquisition plans.

•	use a substantial portion of our cash reserves or incur debt;

•	issue equity securities or grant equity incentives to acquired employees that would dilute our current shareholders’ percentage ownership;

•	assume liabilities, including potentially unknown liabilities;

•	record goodwill and nonamortizable intangible assets that are subject to impairment testing on a regular basis and potential periodic impairment charges;

•	incur amortization expenses related to certain intangible assets;

•	incur large and immediate write-offs and restructuring and other related expenses; or

•	become subject to intellectual property or other litigation.

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•	Congressional failures or successes in addressing budget concerns, current economic uncertainty;

•	disruptions in the operations of the U.S. government;

•	"sequestration;”

•	the downgrading of U.S. government debt or the possibility of such action;

•	the political climate in the U.S. focusing on cutting or limiting budgets and their effect on government budgets;

•	the limits on federal borrowing capacity;

•	changes in procurement policies;

•	budgetary considerations including Congressional delays in completing appropriation bills as occurred in 2011, 2012, and 2013;

•	domestic crises;

•	political efforts to limit the activities of the National Security Agency, or NSA; including proposed state legislation that would limit or even criminalize doing business with the NSA for certain companies doing business with state governments; and

•	international political developments, such as the downgrading of European debt.

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if a supplier does not provide components or systems that meet our specifications in sufficient quantities and with acceptable quality on time or deliver when required, or delays future components or systems beyond anticipated delivery dates, then sales, production, delivery, acceptance and revenue from our systems could be delayed and/or reduced and we could be subject to costly penalties even once delivered and accepted, which has happened during 2011, 2012, 2013 and 2014 and has at times significantly lowered our revenue for a particular quarter or year;

•	if a supplier cannot provide a competitive key component (for example, due to inadequate performance or a prohibitive price) or eliminates key features from components, such as with the processors we design into our systems, our systems may be less competitive than systems using components with greater capabilities;

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if an interruption of supply of our components, services or capabilities occurs because a supplier changes its technology roadmap, decides to no longer provide those products or services, increases the price of those products or services significantly or imposes reduced delivery allocations on its customers, it could take us a considerable period of time to identify and qualify alternative suppliers, to redesign our products as necessary and to begin to manufacture the redesigned components or otherwise obtain those services or capabilities. In some cases, such as with key integrated circuits and memory parts or processors, we may not be able to redesign such components or find alternate sources that we could use in any realistic timeframe;

•	if a supplier of a component is subject to a claim that the component infringes a third-party’s intellectual property rights, as has happened with one of our suppliers, our ability to obtain necessary components could be adversely affected or our cost to obtain such components could increase significantly;

•	if a supplier providing us with key research and development and design services or core technology components with respect to integrated circuit design, network communication capabilities or software is late, fails to provide us with effective functionality or loses key internal talent, our development programs may be delayed or prove to be impossible to complete;

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if a supplier provides us with hardware or software that contains bugs or other errors or is different from what we expected, as is occurring with a key component, our development projects and production systems may be adversely affected through reduced performance or capabilities, additional design testing and verification efforts, re-spins of integrated circuits and/or development of replacement components, and the production and sales of our systems could be delayed and systems installed at customer sites could require significant, expensive field component replacements or result in penalties;

•	some of our key component and service suppliers are small companies with limited financial and other resources, and consequently may be more likely to experience financial and operational difficulties than larger, well-established companies, which increases the risk that they will be unable to deliver products as needed; and

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if a key supplier is acquired or has a significant business change, such as may occur with the proposed acquisition of the third-party original equipment manufacturers that supplies complete storage systems for our Sonexion product, the production and sales of our systems and services may be delayed or adversely affected, or our development programs may be delayed or may be impossible to complete.

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•	harm to our ability to compete in relevant markets or in customer perception of our products;

•	unanticipated costs or adverse tax consequences;

•	exposure to potential liabilities to third parties or Intel, or claims for indemnification by Intel, including with respect to third-party litigation matters;

•	failure to successfully further develop our current products or disruption to our current or future product roadmaps and ongoing business;

•	delays and difficulties in receiving key components for our products from suppliers, including Intel;

•	loss of customers, vendors or alliances; and

•	failure to create shareholder value with the additional cash resources.

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•	pay third-party infringement claims;

•	discontinue manufacturing, using, or selling particular products subject to infringement claims;

•	discontinue using the technology or processes subject to infringement claims;

•	develop other technology not subject to infringement claims, which could be time-consuming and costly or may not be possible; or

•	license technology from the third party claiming infringement, which license may not be available on commercially reasonable terms.

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•	removal of a director only in limited circumstances and only upon the affirmative vote of not less than two-thirds of the shares entitled to vote to elect directors;

•	the ability of our Board of Directors to issue up to 5,000,000 shares of preferred stock, without shareholder approval, with rights senior to those of the common stock;

•	no cumulative voting of shares;

•	the right of shareholders to call a special meeting of the shareholders only upon demand by the holders of not less than 30% of the shares entitled to vote at such a meeting;

•	the affirmative vote of not less than two-thirds of the outstanding shares entitled to vote on an amendment, unless the amendment was approved by a majority of our continuing directors, who are defined as directors who have either served as a director since August 31, 1995, or were nominated to be a director by the continuing directors;

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•	special voting requirements for mergers and other business combinations, unless the proposed transaction was approved by a majority of continuing directors;

•	special procedures to bring matters before our shareholders at our annual shareholders’ meeting; and

•	special procedures to nominate members for election to our Board of Directors.

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