They do things such as building or maintaining networks, computer systems and computer software.

他们要建立和维护网站、电脑系统和电脑软件。

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Software Maintenance delivers both proactive and reactive support for your networks, systems, and software through effective problem management and updates.

软件维护可通过有效的问题管理及更新为您的网络、系统及软件提供主动与被动支持。

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Amazing software allows your wireless handheld to access files on corporate systems, school networks, home computers, and the Internet!

惊人的软件可以让您的无线手持设备访问企业系统上的文件，学校网络，家用电脑和互联网！

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It helps that Elop has a varied resume in software, with stints at Juniper Networks and Adobe Systems along with Microsoft, where he worked for two years as the man in charge of developing the popular Office suite.

FORBES: How Microsoft's Elop Could Turn Nokia Around

From devices to data centers, from consumers to cloud providers, Juniper Networks delivers the software, silicon and systems that transform the experience and economics of networking.

ENGADGET: OnLive and Juniper team up on cloud-based services for enterprise

The company pushed software with Unix roots, and emphasized systems that bound computers together in sprawling networks, rather than treating them as stand-alone "personal" computers.

FORBES: Chief Executive Steve Jobs