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Pentium Notebooks

 

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The newest Intel Pentium CPU was made expressly for notebooks. A 75-MNz version that could operate on a 50-MNz bus would ship in 1994. A 90-MNz version that had a 60-MNz data bus was available in 1995.

Toshiba is the first mainstream player to design cutting-edge features into its notebooks to make the best use of these Pentium chips. To reduce heat and keep the size and weight of the units down, Toshiba’s forthcoming Pentium notebook will use a paper-thin tabautomated bonded (TAB) version of the Pentium chip instead of the bulky ceramic pin-grid array (PGA), which encases the chip used in desktop systems. The smaller TAB package bonds easily to the motherboard and doesn’t need a noisy, bulky fan to keep it cool.

Toshiba’s new notebook will also an advanced form of DRAM called extended-data-out (EDO). EDO will provide performance comparable with that of a secondary cache, that is why Toshiba can save engineering time and manufacturing dollars. Notebooks can also save on battery power. EDO DRAM which is known as hyper-page-mode (HPM) DRAM, replaces fast-page-mode (FPM) DRAM in the Toshiba notebook. The result is a significant speed improvement. HPM will replace fast-page mode because it’s 38 percent faster.