83Plus:OS:VersionDifferences

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TIOS 2.21

Released March 2004. This is the first TIOS version that appeared in the TI-84 Plus family of calculators. It maintained all features of the TI-83 Plus family. The following new features were added:

  • real-time clock with timer functions
  • USB connectivity support
    • calc-to-calc
    • calc-to-computer
    • calc-to-supported peripheral
  • increased Flash ROM support
  • "library functions" support
  • new TI-BASIC commands:
    • setDate(
    • setTime(
    • CheckTmr(
    • SetDtFmt(
    • SetTmFmt(
    • timeCnv(
    • dayOfWk(
    • GetDtStr(
    • GetTmStr(
    • GetDate
    • GetTime
    • StartTmr
    • GetDtFmt
    • GetTmFmt
    • isClockOn
    • ClockOff
    • ClockOn
    • OpenLib(
    • ExecLib

TIOS 2.22

Released August 2004. Added no new "user" features. Modified no "user" features. (Probably fixed some previous bugs.)

TIOS 2.30

Released December 2004. The following new features were added:

  • updated Graph-Table (G-T) Split-Screen mode
  • "manual-line fit" - draws data points, as well as a “best fit line”. Allows the user to modify the parameters of a linear function, at the same time seeing the resulting graph.\
  • improved graphing of funtions with discontinuities when Xres=1
  • new statistics features:
    • chi-square goodness of fit test
    • confidence interval for slope
    • inverse student T
  • "plug-and-play" for specific TI-approved peripheral support:
    • CBR 2â„¢
    • EasyTempâ„¢
  • new TI-BASIC commands:
    • Manual-Fit

TIOS 2.40

Released November 2005. The following new features were added:

  • extended "plug-and-play" to ~25 sensors (when connected via EasyLinkâ„¢ by Vernier Software & Technology)
  • Press-to-Test = pressing Left+Right when turning the calculator on will temporarily disable applications and programs while students are taking an exam. To re-enable applications and programs, send any variable to the disabled calculator.
  • TestGuard 2.0 support
  • SmartPadâ„¢ support = enables a TI-84 Plus family calculator to provide key inputs to TI-SmartViewâ„¢ emulation and presentation computer software
  • updated language localization support
  • Write-to-Flash = enables TI-Navigatorâ„¢ Apps to write apps and appvars directly to Flash ROM.
  • 31 new B_CALLs added (52CF to 5329)

TIOS 2.41

Release date unknown.

  • no new bcalls added

Sources