HP is a technology company that operates in more than 170 countries around the world. No other company offers as complete a technology product portfolio as HP. HP provides infrastructure and business offerings that span from handheld devices to some of the world's most powerful supercomputer installations. HP offers consumers a wide range of products and services from digital photography to digital entertainment and from computing to home printing.

Juniper Networks is a multinational corporation headquartered in Sunnyvale, California that develops and markets networking products. Its products include routers, switches, network management software, network security products and software-defined networking technology. Juniper Networks originally focused on core routers, which are used by internet service providers (ISPs) to perform IP address lookups and direct internet traffic.

Aruba Networks offers Wi-Fi-branded products such as access points, wireless controllers and software. Aruba sells products under their own brandname and as OEM products from other vendors, such as the Dell PowerConnect W-series products and Alcatel-Lucent OmniAccess products.

Dellsells personal computers (PCs), servers, data storage devices, network switches, software, computer peripherals, HDTVs, cameras, printers, MP3 players, and electronics built by other manufacturers. The company is well known for its innovations insupply chain management and electronic commerce

IBM has constantly evolved since its inception. Over the past decade, it has steadily shifted its business mix by exiting commoditizingmarkets such as PCs, hard disk drives and DRAMs and focusing on higher-value, more profitable markets such as business intelligence, data analytics, business continuity, security, cloud computing, virtualization and green solutions.