THE WELCH COMPANY
440 Davis Court #1602
San Francisco, CA 94111-2496
415 781 5700


S U M M A R Y


DIARY: June 13, 1992 04:39 PM Saturday; Rod Welch

Shopping for color laptops.

1...Summary/Objective
...Compaq Portable
...Toshiba T4400SXC (Color)
...Toshiba T3200SXC (Color)
...Toshiba T5200 (Color)
...AST Premium Exec (Color)
...Toshiba T6400DXC (Color)
...Toshiba T6400SXC (Color)
...Zenith Data Systems
.....Local Bus
.....Wengine


..............
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CONTACTS 

SUBJECTS
Laptop Computer, to demonstrate SDS
Presentation Tools, e.g. Color
Notebook Computer

0505 -    ..
0506 - Summary/Objective
0507 -
050701 - More research today for color laptop or notebook to demonstrate SDS
050702 - for marketing.
050703 -
050704 - Looks like we may be getting into the range of our budget.
050705 -
050706 -
050707 -
0508 -
0509 -
0510 - Pricing
0511 -
051101 - It appears pricing may have begun to come down.  June 2, 1992 issue
051102 - of Computer Currents shows on page 1:
051103 -
051104 - Computerland                                  510 794 9311
051105 - Fremont & Stockton stores
051106 -
051107 -     They are showing 50% off on their inventory of T5200C, 200 MB
051108 -     laptops.  This indicates the manufacturer is getting ready to
051109 -     introduce new models, and the vendor wants to clear its inventory.
051110 -
051111 -
051112 -
051113 - MicroAge Bay Area Computers
051114 - 130 Sansome  (at Bush)
051115 - San Francisco, CA  94104
051116 - 415 393 9600
051117 -
051118 -          This may the store where I bought the I/O card for cpu #4 to
051119 -          get the second parallel and/or serial port.
051120 -
051121 -
051122 -   Compaq Portable
051123 -
051124 -   486 C  33 Mhz EISA 120 MB
051125 -   4MB RAM Exp 8 MB
051126 -   Detachable keyboard                                 $5,888
051127 -
051128 -
051129 -   Toshiba T4400SXC (Color)
051130 -
051131 -   486SX 25Mhz  85 MB Exp 120
051132 -   4 MB RAM Exp 25 MB                                  $5,499
051133 -
051134 -   Uses TFT (thin film transistor) LCD active matrix color.
051135 -
051136 -   Nickel cadmium battery that lasts 3 hours.
051137 -
051138 -
051139 -   Toshiba T3200SXC (Color)
051140 -
051141 -   386SX 20Mhz 120 MB
051142 -   1 MB RAM Exp 13 MB                                  $3,899
051143 -
051144 -
051145 -   Toshiba T5200  (Color)
051146 -
051147 -   386SX 20Mhz  200 MB
051148 -   2 MB RAM Exp 8 MB                                   $3,750
051149 -
051150 -
051151 -
051152 - Computown
051153 - 760 Market Street #219
051154 - Phelan Building                     415 956 8696
051155 -
051156 -
051157 -   AST Premium Exec (Color)
051158 -
051159 -   386SX 25Mhz  60 MB
051160 -   4 MB RAM Exp 8 MB                                   $2,880
051161 -
051162 -   1 MB free RAM, total 5 MB
051163 -
051164 -
051165 -
051166 - Microtech
051167 - 5865 Doyle Street
051168 - Emeryville, CA  94608                   510 658 1433
051169 -
051170 -
051171 -   Toshiba T6400DXC (Color)
051172 -
051173 -   486DX 33Mhz  200 MB
051174 -   4 MB RAM Exp 20 MB                                  $_____
051175 -
051176 -
051177 -   Toshiba T6400SXC (Color)
051178 -
051179 -   486SX 25Mhz  120 MB
051180 -   4 MB RAM Exp 20 MB                                  $_____
051181 -
051182 -
051183 -
051184 - Byte Magazine June 1992, page (opposite) 90
051185 -
051186 -
051187 -   Zenith Data Systems
051188 -
051189 -   386SL 25Mhz  120 MB
051190 -   ? MB RAM Exp ? MB                                   $5,299
051191 -
051192 -   8.4" TFT active matrix screen; 6.5 pounds
051193 -
051194 -   4 hours continuous power, max 10 hours under Z-Note Premier System
051195 -   Management (1/3 less with color screen).
051196 -
051197 -
051198 -
051199 -
0512 -
0513 -
0514 - Computer Processing Speeds
0515 -
051501 - Byte issue June 1992 on page 53 describes new technology to improve
051502 - the ability of ISA (which is what most low cost IBM compatible
051503 - computers use), and EISA system buses to provide greater throughput
051504 - for fast cpu chips, like 486 33, 50, 66 Mhz.  The method is called
051505 - "local bus" technology.
051506 -
051507 -     Local Bus
051508 -
051509 -     Byte says:  "Because it operates at three to four times the rate
051510 -     of a system bus and avoids the overhead of bus arbitration, the
051511 -     local bus delivers much greater throughput than your typical I/O
051512 -     bus.
051513 -
051514 -
051515 -     Wengine
051516 -
051517 -     This is a competing technology, that seems to be much faster than
051518 -     the "local bus" method.  Evidently this is a chip manufactured by
051519 -     C&T.
051520 -
051521 -
051522 -
051523 -
051524 -
0516 -