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Pb,symbol for the element leadlead,
metallic chemical element; symbol Pb [Lat. plumbum]; at. no. 82; at. wt. 207.2; m.p. 327.502°C;; b.p. about 1,740°C;; sp. gr. 11.35 at 20°C;; valence +2 or +4.
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McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
BlackBerry PlayBookA tablet from BlackBerry. Introduced in 2011, manufacturing ceased in late 2012. The PlayBook had a 7" screen, rear camera for still and HD video recording and front camera for video calling. Weighing less than a pound, it ran the QNX operating system and included Wi-Fi for the Internet and cellular access via the user's BlackBerry phone plan.
Also an Android Tablet
The PlayBook also supported Android apps, and third-party Android developers could submit their programs to BlackBerry's online store (see BlackBerry App World).
BlackBerry Phone Synchronization
Prior to Version 2.0 of the PlayBook OS, email, calendar and contacts on the tablet were available only via Bluetooth and the user's BlackBerry phone. As of Version 2.0, these functions became native within the tablet. As of Version 2.1, the PlayBook could send and receive text messages over Bluetooth and the phone. See BlackBerry and QNX.
petabitOne quadrillion bits (one trillion kilobits). Also, Pb, Pbit and P-bit. Petabit is a future measurement of transmission speed. See petabyte and space/time.
petabyteOne quadrillion bytes. Also PB, Pbyte and P-byte. In 2012, Facebook indicated that it stored 100 petabytes of member data. See Petabyte Age, peta, brontobyte, Hadoop, binary values, petabit and space/time.
|Hard to Imagine|
|A large datacenter holds petabytes of data in all of its drives combined. However, we have a long way to go for a single storage drive to hold just one petabyte.|
|Twenty-Megabyte Hard Disk|
|In 1984, people were amazed at how much the hard disk on IBM's new PC AT could hold. (Image courtesy of IBM.)|
PowerBuilderA popular application development system from Sybase for Web, multitier and client/server development. It supports Java EE-branded application servers, such as Sybase EAServer, IBM WebSphere and BEA WebLogic, and DBMSs such as Sybase ASE, IBM DB2 and Oracle. PowerBuilder contains patented technology with its DataWindow capability and provides visual programming tools as well as a BASIC-like programming language called PowerScript. Included with PowerBuilder is InfoMaker, a report generation application.
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