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IEEE Membership & Staff
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| Milestone Buildings Exist
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Yes
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| Milestone Distinguishing Features
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As for portable computing devices prior to … As for portable computing devices prior to T-1100, Compaq released Portable I in 1982, but it came with size of the suitcase, 12.5kg weight, separate display and keyboard. Therefore, although it was portable, it was not light enough to call lap-top. In Japan, HC-20 of Seiko released in 1982 and PC8201A of NEC released in 1983 were about 1.7kg handheld device, but were 8 bit BASIC machine not compatible with IBM PC/AT. T-1100 was the first clam-shell lap-top computer with IBM-PC/AT compatibility and workable without AC power. mpatibility and workable without AC power.
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| Milestone Obstacles Overcome
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In order to realize portability, operabili … In order to realize portability, operability without AC power, and compatibility with IBM-PC/AT, it was necessary to make it as light as possible and reduce power usage for long battery life. To achieve this, Toshiba had consolidated a great number of ICs which were normally used in desktops PCs into a few Gate Arrays and, instead of the existing mainstream NMOS technology, adopted CMOS technology. With these solutions, T-1100 realized not only compaction and light weight of 4kg, but also low power consumption. In addition, Toshiba had also developed main components such as LCD and 3.5 inches floppy disc drive for achieving the highest density implementation ever before. Toshiba had also developed rechargeable NiCad batteries from the ground and achieved 8 hours battery life. This battery life was realized with the enabling technologies including charge/discharge mechanism and driver software which were not yet available for PC ATs. This technology had been improved to the current “ACPI (Advanced Configuration and Power Interface)” which has been widely used as a common power control standard and enables stand-by/suspend mode and cutting power supply to sleeping devices. Although Clam-shell system is suitable for portable PC to guard LCD and keyboard, there was no clam-shell hinge and FPC (Flexible printed circuits) cable with light and enough durability and endurance. But Toshiba developed these components with countless repeated trials. components with countless repeated trials.
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| Milestone Present Site Owner
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Toshiba Corporation
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| Milestone Site Access Details
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As Ome Complex is one of Toshiba’s facilit … As Ome Complex is one of Toshiba’s facilities, it has enough secure gates.
But it has a museum area in the building, and people are allowed to go into the building can access the museum area.
Already IEEE Milestone Award “The First Word Processor for The Japanese Language, 1971-1978” is displayed at Ome Complex. e, 1971-1978” is displayed at Ome Complex.
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| Milestone Site Description
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Toshiba Ome Complex
This achievement (T-1100) developed in the factory in 1984-1985 and mass production also was performed by this factory.
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| Milestone Site Owner Approval
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Yes +
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| Milestone proposal submitted
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false +
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| Proposed Milestone IEEE Section
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The IEEE Tokyo Section +
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| Proposed Milestone Location
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Ome Complex of Toshiba Corporation, in Ome, Tokyo, Japan
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| Proposed Milestone Name
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The first laptop personal computer, 1984-1986 +
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| Proposed Milestone Year
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1984-1986 +
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| Modification dateThis property is a special property in this wiki.
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1 October 2012 18:06:36 +
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