Old school

[Donald Trump]

Anything that is from an earlier era and looked upon with high regard or respect. Can be used to refer to music, clothing, language, or anything really.

[Couch Potatoe]

from back in the day

[Tanya Shivari]

A positive appellation referring to when things werent flashy but empty of substance, were done by hard work, didnt pander to the lowest common denominator, and required real skill. Labour-saving devices, shortcuts that reduce quality and quitting before the task is done are not characteristics of old school.
In reference to computer games, refers to a game that had substantial playability without flashy graphics or [eye candy]. Old school gamers appreciate difficult maneuvers, careful planning, and [scorched earth] policies.
In reference to role-playing games, old school refers to games that tested players wits, could kill off careless characters, and required dedication and inner strength to play. Old school games didnt pander to the ideas that everyone is created equal, that all options are open to all races, that the markets were somehow free, and that a quasi-medieval society could have near 100% literacy.
See also [classic].

[Tina]

1. Music from back in the day, the last decate and before.
2. A. Some thing that past is time or its fashion, or
   B. a bring back memory of of a thing in the respectable way.

[Little_Girl]

1. Retro
2. As Before (as something was done, said, etc.)

[Little_Girl]

The term old school is of English origin and dates back to at least the 19th Century and is used to denote something that is considered to be out of date with currents trends/ideas and thinking. An early example of the term can be found in the Charles Dickens novel Bleak House (first published 1852).

[Donald Trump]

Old School (sp. Ol Skool) is a term that originated sometime in the very early 1990s with the introduction of Hip-Hop (which was the dance anyone could do, originaly consisting of foot-work and had its roots in jazz-funk). Old School refers back to 1984 when break-dancing was at its prime,because so many moves had to be studied and practiced just as one would learn in school.

To take some-one to school, meant to either teach and instruct them or show by greater example how a move should be properly executed.
Given the new popularity of Hip-Hop in the early 1990s, many of the younger generations only learned how to perform the Hip-Hop moves (those who only knew Hip-Hop were refered to as the New-School).
Note: Anything that took place within the 1990s is refered to as, back in the day.

Old School, Originaly the term was first used to differentiate between Break-Dancing and Hip-Hop.

An era that is marked by the very first computer generation; those who had the first personal computers (which soley ran off basic language and consisted of no hard drive) like the CoCo, Commodore, Apple, Pong, etc. This era occured after the baby-boomers of 1945-1965.

[Cami]

[The way] [things] used to be [done].