Nickname for Apple's Titanium PowerBook G4, derived from the chemical symbol for titanium, Ti.

Technical Specifications of the TiBook Processor and memory
  • 667- or 800MHz PowerPC G4 processor with Velocity Engine
  • 1MB of DDR SRAM level 3 cache (static RAM)
  • 133MHz system bus
  • 256MB or 512MB of PC133 SDRAM; two SO-DIMM slots support up to 1GB
Storage
  • 30GB or 40GB 4200-rpm Ultra ATA/66 hard disk drive (60GB 5400-rpm drive available in build-to-order computers)
Optical drive
  • Slot-loading DVD-ROM/CD-RW Combo drive (reads DVDs at 8x and CDs at 24x; writes CD-R and CD-RW discs at 8x)
Communications
  • Built-in 10/100/1000BASE-T Ethernet(RJ-45 connector)
  • Built-in 56K V.90 modem (RJ-11 connector)
  • Built-in 11-Mbps AirPort Card (IEEE 802.11 DSSS compliant) in 800MHz configuration; 667MHz configuration is
  • AirPort ready
Expansion
  • One 400-Mbps FireWire (IEEE 1394) port
  • Two 12-Mbps USB ports
  • One PC Card/CardBus slot
  • Support for one Type I or Type II PC Card or CardBus card
Battery and power
  • 55.3-watt-hour lithium-ion battery provides up to 5 hours of battery life
Video and graphics support
  • Built-in 2D/3D graphics acceleration through an integrated ATI Mobility Radeon 7500 graphics processor with AGP 4X support and 32MB of DDR SDRAM video memory
  • Support for dual display and video mirroring: Millions of colors on the built-in display and on an external display at up to 2048 by 1536 pixels
  • Support for a single external display: Millions of colors on an external display at up to 2048 by 1536 pixels
  • DVI output port
  • VGA output support with included Apple DVI to VGA Adapter
  • S-video output port
  • Composite output support with included S-video to composite adapter
Display
  • 15.2-inch (diagonal) built-in TFT widescreen active-matrix display
  • Supports millions of colors at 1280-by-854-pixel resolution
  • Supports 3:2 aspect ratio resolutions of 1280 by 854, 1152 by 768, 896 by 600, 720 by 480, and 640 by 480 pixels
  • Supports 4:3 aspect ratio resolutions of 1024 by 768, 800 by 600, and 640 by 480 pixels
Audio
  • Audio line in (minijack)
  • Audio line out (minijack)
  • Two built-in stereo speakers
  • Internal omnidirectional microphone
Size and weight
  • Height: 1.0 inch (2.6 cm)
  • Width: 13.4 inches (34.1 cm)
  • Depth: 9.5 inches (24.1 cm)
  • Weight: 5.4 pounds (2.45 kg) with battery installed

The latest TiBook introduced in April 2002 came with some important upgrades. Most notably was the 800MHz processor added to the top of the line model, and the 133MHz bus and L3 cache added to all both models. The PowerBook G4 now runs quite a bit cooler thanks to the use of two fans and changes made to the architecture of the processor. (The previous models ran hot enough to warm up your coffee.) Also, AirPort reception has been impproved, as has screen brightness.

Information comes from Apple Computer and Macworld Online.

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