The TI 73 series is a series of graphing calculators made by Texas Instruments , all of which have identical hardware.
15-548: The original TI-73 graphing calculator was originally designed in 1998 as a replacement for the TI-80 for use at a middle school level (grades 6-8). Its primary advantage over the TI-80 is its 512 KB of flash memory , which holds the calculator's operating system and thereby allows the calculator to be upgraded. Other advantages over the TI-80 are the TI-73's standard sized screen (as opposed to
30-457: A 48 x 64 dot-matrix display with a 5 x 3 pixel font, the smallest screen of any TI graphing calculator. It had the slowest processor (980 kHz ) of any TI graphing calculator. The first revision of the TI-80 'A' contained a proprietary Toshiba T6M53 ASIC while subsequent revisions contained a Toshiba T6M53A. Additionally, the TI-80 had the processor on board the ASIC, unlike later calculators like
45-669: A bridge between the TI-15 Explorer and similar calculators and the TI-83 Plus , TI-84 Plus , and similar calculators. Later, the TI-73 Explorer was remodeled to resemble the TI-84 Plus graphing calculator more closely. Due to lack of demand in middle schools, the TI-73 and TI-73 Explorer have not been huge sellers for TI and are not carried by most retail stores. Most American upper-level middle school algebra courses generally tend to use
60-554: A link port, 25 KB of RAM (as compared to the TI-80's 7 KB of RAM), and a faster 6 MHz Zilog Z80 processor (as compared with the TI-80's 980 kHz proprietary processor). The TI-73 also uses the standard 4 AAA batteries with a lithium backup battery (instead of the TI-80's 2 CR2032 lithium batteries). In 2003, the TI-73 was redesigned with a new body shape and redesignated the TI-73 Explorer to indicate its currently intended use as
75-548: A new body shape and redesignated the TI-73 Explorer to indicate its currently intended use as a bridge between the TI-15 Explorer and similar calculators and the TI-83 Plus , TI-84 Plus , and similar calculators. Later, the TI-73 Explorer was remodeled to resemble the TI-84 Plus graphing calculator more closely. Due to lack of demand in middle schools, the TI-73 and TI-73 Explorer have not been huge sellers for TI and are not carried by most retail stores. Most American upper-level middle school algebra courses generally tend to use
90-559: The TI-83 or TI-84 families instead of the TI-73 or TI-73 Explorer, while most basic middle school math courses generally do not use graphing calculators, instead opting for scientific calculators such as the TI-30 or TI-34 families. Originally the TI-73 could only run programs written in TI-BASIC , although that has changed in recent years. In 2005, an assembly shell called Mallard was released for
105-415: The TI-83 or TI-84 families instead of the TI-73 or TI-73 Explorer, while most basic middle school math courses generally do not use graphing calculators, instead opting for scientific calculators such as the TI-30 or TI-34 families. Originally the TI-73 could only run programs written in TI-BASIC , although that has changed in recent years. In 2005, an assembly shell called Mallard was released for
120-534: The TI-83 , TI-83 Plus , and TI-84 Plus which had separate ASIC and processor chips in certain models. In comparison, the TI-81 , released in 1990, featured a 2 MHz Zilog Z80 processor. However, the TI-80 did feature 7 KB of RAM (compared with the TI-81's 2.4 KB ). The TI-80 also had more built-in functions than the TI-81 (such as list and table functions, as well as fraction and decimal conversions). Like
135-552: The TI-73. Mallard allows the user to run programs written in assembly language. As with the TI-82 and the TI-85 before, a hacked backup file is downloaded containing the assembly shell. Released in late 2008, the Windows utility Chameleon allows a user to load the TI-73 Explorer with a slightly modified TI-83+ firmware, giving it nearly equivalent functionality. In 2009, Texas Instruments updated
150-406: The TI-73. Mallard allows the user to run programs written in assembly language. As with the TI-82 and the TI-85 before, a hacked backup file is downloaded containing the assembly shell. Released in late 2008, the Windows utility Chameleon allows a user to load the TI-73 Explorer with a slightly modified TI-83+ firmware, giving it nearly equivalent functionality. In 2009, Texas Instruments updated
165-399: The TI-80's smaller screen), the addition of a link port, 25 KB of RAM (as compared to the TI-80's 7 KB of RAM), and a faster 6 MHz Zilog Z80 processor (as compared with the TI-80's 980 kHz proprietary processor). The TI-73 also uses the standard 4 AAA batteries with a lithium backup battery (instead of the TI-80's 2 CR2032 lithium batteries). In 2003, the TI-73 was redesigned with
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#1733085316027180-482: The TI-81, the TI-80 did not feature a link port on the base model, however, unlike the TI-81, the ViewScreen variant (meant for use with TI's overhead projection units) did. The TI-80 was the only graphing calculator to use 2 CR2032 lithium batteries (instead of the standard 4 AAA batteries with a lithium backup battery). Since its release, it has been superseded by the superior TI-73 and TI-73 Explorer . The TI-80
195-447: The skin of the TI-73 Explorer to match the shape of the larger TI-84 Plus 's case. This resulted in a slight increase in mass from 182 grams to 208 grams. The hardware and software remained unchanged and is identical to an older unit wearing the TI-83 plus style casing. TI-80 The TI-80 is a graphing calculator designed by Texas Instruments in 1995 to be used at a middle school level (grades 6-8). The TI-80 featured
210-433: Was officially discontinued in 1998, when it was replaced by the TI-73, however, production continued until at least October 2000. This microcomputer - or microprocessor -related article is a stub . You can help Misplaced Pages by expanding it . TI-73 The TI 73 series is a series of graphing calculators made by Texas Instruments , all of which have identical hardware. The original TI-73 graphing calculator
225-411: Was originally designed in 1998 as a replacement for the TI-80 for use at a middle school level (grades 6-8). Its primary advantage over the TI-80 is its 512 KB of flash memory , which holds the calculator's operating system and thereby allows the calculator to be upgraded. Other advantages over the TI-80 are the TI-73's standard sized screen (as opposed to the TI-80's smaller screen), the addition of
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