Please answer the following question: Information:  - A computer is a device that can be instructed to carry out an arbitrary set of arithmetic or logical operations automatically. The ability of computers to follow a sequence of operations, called a "program", make computers very flexible and useful. Such computers are used as control systems for a very wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer assisted design, but also in general purpose devices like personal computers and mobile devices such as smartphones. The Internet is run on computers and it connects millions of other computers.  - In computing, the form factor is the specification of a motherboard  the dimensions, power supply type, location of mounting holes, number of ports on the back panel, etc. Specifically, in the IBM PC compatible industry, standard form factors ensure that parts are interchangeable across competing vendors and generations of technology, while in enterprise computing, form factors ensure that server modules fit into existing rackmount systems. Traditionally, the most significant specification is for that of the motherboard, which generally dictates the overall size of the case. Small form factors have been developed and implemented.  - A home theater PC (HTPC) or media center computer is a convergence device that combines some or all the capabilities of a personal computer with a software application that supports video, photo, audio playback, and sometimes video recording functionality. In recent years, other types of consumer electronics, including gaming systems and dedicated media devices have crossed over to manage video and music content. The term "media center" also refers to specialized application software designed to run on standard personal computers.  - VMware, Inc. is a subsidiary of Dell Technologies, that provides cloud and virtualization software and services, and claims to be the first to successfully virtualize the x86 architecture commercially. Founded in 1998, VMware is based in Palo Alto, California. In 2004, it was acquired by and became a subsidiary of EMC Corporation, then on August 14, 2007, EMC sold 15% of the company in a New York Stock Exchange IPO. The company trades under the symbol VMW.  - Openwave (formerly software.com, phone.com, and Libris, Inc) has changed its name to Unwired Planet, and two of its former products have launched as private companies; Openwave Mobility and Openwave Messaging. Openwave is historically significant in its introduction of the Mobile Internet and its expansion into a large successful mobile software supplier in the mobile telecom sector.  - A desktop computer is a personal computer designed for regular use at a single location on or near a desk or table due to its size and power requirements. The most common configuration has a case that houses the power supply, motherboard (a printed circuit board with a microprocessor as the central processing unit (CPU), memory, bus, and other electronic components), disk storage (usually one or more hard disk drives, optical disc drives, and in early models a floppy disk drive); a keyboard and mouse for input; and a computer monitor, and, often, a printer for output. The case may be oriented horizontally or vertically and placed either underneath, beside, or on top of a desk.   - Twingo Systems is a computer security company based in the United States. Twingo Systems was a leading provider of desktop security solutions for Secure Socket Layer (SSL) Virtual Private Networks (VPNs). It was founded by French entrepreneurs, Gregoire Gentil (a McKinsey alum) and Reza Malekzadeh (previously one of the first employees at VMware).   - A small form factor (SFF) is a computer form factor designed to minimize the volume of a desktop computer. For comparison purposes, the size of an SFF case is usually measured in litres. SFFs are available in a variety of sizes and shapes, including shoeboxes, cubes, and book-sized PCs. Their smaller and often lighter construction has made them popular as home theater PCs and as gaming computers for attending LAN parties. Manufacturers also emphasize the aesthetic and ergonomic design of SFFs since users are more likely to place them on top of a desk or carry them around. Advancements in component technology together with reductions in size means a powerful computer is no longer restricted to the huge towers of old.  - Zonbu is a technology company that markets a computing platform which combines a web - centric service , a small form factor PC , and an open source based software architecture . Zonbu was founded by Alain Rossmann ( previously Founder and CEO of Openwave ) and Gregoire Gentil ( previously co-founder of Twingo Systems ) .    Given the information above, choose from the list below the object entity that exhibits the relation 'headquarters location' with the subject 'zonbu'.  Choices: - california  - central  - enterprise  - hard  - industry  - internet  - media  - mobile  - palo alto
Answer:
palo alto