thank you for bringing back the discussion to architecture education instead of life in UTM. there are 4 categories that u should know about, and what they do.
drafting softwaresthese are softwares u would use for draftmanship. they are not for 3D modelling or rendering, but plainly, to produce a legible drawing that using the standard visual communication language amongst those in the built environment. u use these softwares to produce plans, sections, elevations etc.
autocad and all its cad variations, minicad, vectorworx etc.
3D modelling and rendering softwaresthese softwares let u model and render ur design in 3D. commonly used to produce "artist's impression" (or rather, designer's impression) of the design. end product is a series of perspectives as well as walkthrough animation.
3Dsmax, sketchup, 3dsviz, maya, microstation, lightwave etc
vector based DTPwhere people commonly use DTP softwares to publish books or magazines, architects use them to compose their dwgs into a poster, commonly sized A1-A0.
illustrator, flash, coreldraw etc.
raster processing softwaresin these softwares, architecture students use them to manually render, touch-up, or convert a dwg into a presentable end product. images commonly produced in 3D softwares are improved in these softwares.
photoshop, painter, ms paint etc.