Engineering

Facebook engineers announce development of Time Cards

A pair of Facebook engineers have announced the development of Time Cards—PCIe cards that can be used in x86 architecture machines to serve as a timekeeping device. In their announcement on the Facebook Engineering blog ...

Consumer & Gadgets

Scrambling against smudge attacks

The security-conscious among us use a PIN, a personal identification number, to "lock" our smartphones so that if the device is lost or stolen, a third party should not be able to access our contacts, messages, and other ...

Internet

The Chrome browser leans in with more personal profiles

Space: It is a final frontier for astronauts and astronomers to search and explore other worlds, but for many of us, it is about personal space—a place where you have the freedom to be yourself, form an identity, and extend ...

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Personal computer

A personal computer (PC) is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end user, with no intervening computer operator.

A personal computer may be a desktop computer, a laptop computer or a tablet computer. The most common current operating systems for personal computers are Microsoft Windows, Mac OS X and Linux, while the most common microprocessors are x86-compatible CPUs, ARM architecture CPUs and PowerPC CPUs. Software applications for personal computers include word processing, spreadsheets, databases, Web browsers and e-mail clients, games, and myriad personal productivity and special-purpose software. Modern personal computers often have high-speed or dial-up connections to the Internet, allowing access to the World Wide Web and a wide range of other resources.

A PC may be used at home, or may be found in an office, often connected to a local area network (LAN). This is in contrast to the batch processing or time-sharing models which allowed large expensive systems to be used by many people, usually at the same time, or large data processing systems which required a full-time staff to operate efficiently.

While early PC owners usually had to write their own programs to do anything useful with the machines, today's users have access to a wide range of commercial and non-commercial software which is provided in ready-to-run form. Since the 1980s, Microsoft and Intel have been dominating much of the personal computer market with the Wintel platform.

This text uses material from Wikipedia, licensed under CC BY-SA