Mnemonic
A personal floatation device.
A flotation device.
Glasses.
a mnemonic
monocle
To make it easier to recall
The online service Math XL is used for multiple purposes in education. It is used as a tutorial device for students to help them learn, a testing device for students to assess their knowledge, and as a lesson planning device to aid teachers.
A device to aid lift, such as Slats and Flaps on the wings.
A camera lucida device is used by artists as a drawing aid. A camera lucida is used to superimpose the image of an object onto a drawing surface so the artist can recreate the image.
A Mnemonic Device is an aid to memory and recall. It can be a word, a phrase, an anagram, a picture, a string around your finger. A famous one is "ROYGBIV" to remember the colors in the visible spectrum, and their order from long wavelength to short. Red, Orange, Yellow, Green, Blue, Indigo, Violet.
I would not call the MS suite a Multimedia aid although the programs could be used to generate multimedia content.
A phrase that helps you remember something else is called a mnemonic. Mnemonics often use patterns, such as acronyms, rhymes, or associations, to make it easier to recall information. They are commonly used in education and memory training to aid retention and retrieval of data.