What are the basic applications on a ti-84 plus?

Question edited for full 'MAKER, model (what it is)'.
Question moved from MISC to correct category.

Here on the maker website

https://education.ti.com/en/products/calculators/graphing-calculators/ti-84-plus-ce-python/applications

https://www.google.com/search?q=TI-84+Plus+CE+Apps

..

In order to select additional graphs, the Transformation Graphing Application will need to be uninstalled from the TI-83 Plus Family and TI-84 Plus Family. Uninstalling the Application does not erase it from the calculator, it disables it from interfering with the normal graphing modes. Below are the steps to successfully uninstall the Application.
• Press [APPS] key
• Select Transfrm from the menu
• Press 1:Uninstall
See cap images below

What happened to it?
If you lost the preloaded applications, you can download them from the education.ti.com website. Here is the link.

Here are the values
TI84PLUS SILVER EDITION FLASH ROM 1.5MB / 24KB RAM
TI84PLUS FLASH ROM 480 KB / 24KB RAM
TI83PLUS FLASH ROM 160KB / 24KB RAM The number of applications you can charge depends on the size in kB of the applications.

About 9 applications ( around 16KB) in TI83PLUS
About 30 applications in TI84PLUS
About 90 applications in TI84PLUS SILVER EDITION.

Here is the link to the latest software for the TI84Plus /SE calculator. You will find the preloaded applications and additional ones. If you need other software visit the Ticalc.org website

To install them on the calculator, use the TI-connect software in conjunction with the TI USB SilverCable or the USB Direct Cable.
Connect calculator to computer.

1. Open the TI Connect software.
   
2. Drag and Drop the applications on the TI Connect software and let them install.
   
3. Make sure batteries are good.
   
4. Install one Application, then quit to permit de-fragmentation.
5. Restart with another application.

You go to the TI download site and download any application that interests you. Here is the link
To install them use the TIConnect software, down loadable from the same site.

Check the following:

TI-84 Plus TI-84 Plus Silver Edition Guidebook

TI-84 Plus TI-84 Plus Silver Edition Guidebook

Introduction tothe TI-83 Plus and TI-84 Plus



A collection of activities for the TI-83 and TI-84 Plus


Part II: Texas Instruments TI-83, TI-83 Plus, TI-84 Plus Graphics

maybe because you don't have the ti connect installed.

I assume you have the manual ?
If not >>
http://education.ti.com/guidebooks/graphing/84p/TI84PlusGuidebook_Part2_EN.pdf

Sounds like your pc had a static charge that it discharged to your TI and that it fried something inside the TI. No warranty, No fix. You gotta buy a new one.