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pay-per-clickA Web marketing system in which the advertiser pays when the user clicks on its ad and goes to the site. Also known as "cost-per-click" (CPC), this is a results-oriented method compared to paying for just the placement of a banner ad on a Web page (see impression).
For ads on search engines, the advertiser that bid the most gets its ad to appear at the top of the results list; the second-highest appears next, and so on. After all paid advertisers are displayed, the regular search results appear. If the user clicks a pay-per-click ad, the advertiser's account is charged the amount of the bid. See CPL and CPA.
Pocket PCAn earlier operating environment for handheld computers from Microsoft, based on the Windows CE operating system. Introduced in 2000, the Pocket PC included Pocket Office applications (Internet Explorer, Word and Excel), handwriting recognition, an e-book reader and wireless Internet. It was designed to compete with the Palm devices, which were popular at that time.
Pocket PC was part of the Windows Mobile platform and was renamed Windows Mobile Classic and Windows Mobile Professional in 2007. See Windows Mobile and Pocket PC Phone Edition.
|Pocket PCs such as this Jornada from HP emerged after the turn of the century, providing users with mobile versions of popular Windows programs.|
PowerPCA family of RISC-based CPU chips developed by IBM, Apple and Motorola. PowerPC chips have been used in a wide range of applications from embedded systems to supercomputers. They were used in Apple's Power Macs up to the G5, before Apple switched to Intel processors. Various models of IBM's System i and System p computers used PowerPC chips, and Freescale Semiconductor (formerly the Motorola chip division) features the Power Architecture for embedded systems in a variety of industries.
Although mostly compatible before, starting in 2006 with Power ISA 2.03, PowerPC chips were united in a common instruction set architecture (ISA) with IBM's POWER chips. For more information, visit www.power.org. See Power Mac, G5, POWER CPU, Power Systems, Apple-IBM Alliance and CHRP.
WordPowerPC Size Tran-Model Year (bits) sistors Notes Qor series 2008 64 Comms eSeries 2006 32-64 Automotive 970 2003 64 52M Mac G5 7400 1999 32 10.5M Mac G4 750 1997 32 6.4M Mac G3 740 1997 32 6.4M Mac G3 604e 1996 32 5.1M 603e** 1996 32 2.6M 603 1995 32 1.6M 604 1995 32 3.6M 602** 1995 32 1M 601 1993 32 2.8M ** low power for laptops
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