Re: Why Ti 80 etc. ?


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Re: Why Ti 80 etc. ?



Th TI-80 does *not* have a Z-80 processor in it.  Here is a table of TI
processors:

>From TI:
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-------------------------------------------
The processor chip and speed for our graphing calculators:

                 Chip                              Speed

TI-73             Z80                              6Mhz
TI-80            Proprietary                  980 KHz
TI-81             Z80                    6Mhz
TI-82             Z80                    6Mhz
TI-83             Z80                    6Mhz
TI-85             Z80                    6Mhz
TI-86             Z80                    6Mhz
TI-92     Motorola 68000                      10Mhz
TI-89     Motorola 68000                      10Mhz

If you have any further questions or comments please feel free to
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Kind regards,

Christopher Palomino
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>----------
>From:  Ray Kremer[SMTP:rkremer@BRADLEY.EDU]
>Reply To:      Ray Kremer
>Sent:  Tuesday, March 17, 1998 10:07 PM
>To:    CALC-TI@LISTS.PPP.TI.COM
>Subject:       Re: Why Ti 80 etc. ?
>
>To build on what you said:  The TI-80 through the TI-86 all use
>the Z80 chip, hense the name.  The 73 probably does, too; in fact it
>should really be the TI-80 and a half, but TI can't really do that.
>The 89 also breaks tradition with its 68000 inside.  They call it the 89
>to reflect that it is the size of the other 8x calcs, but they could have
>called it the TI-90 just as easily.  Note again that the "92" has no
>relation to the processor type, they just picked that number to set it
>above the 8x calcs.
>
>>It has to do with the processor the 8x series of calculators use.  the
>>82,83,85 & 86 all use the z80 microprocessor.  Whether or not that is the
>>case, I'm not sure.  I'm not sure if the 89 will use Zilog's z80 or
>>Motorola's chip.  But, I would almost bet money that's why.  The 73 may just
>>be placed lower to illustrate that it is not meant to be a better calc, and
>>probably is not a better calc than most of the 8x series.
>