alt Hacker NewsErr, no. SGIs were first very expensive (3D) graphics workstations and later mostly also-rans in some other markets like storage and general-purpose big servers.
Servers were Sun, x86, HP-PA, IBM R6000 RISC (and probably some more UNIX / RISC systems). Workstations were PC, Sun, Apple (mostly for graphics / design), some NeXT.
Er, yes.
Many media companies onboarded to the web in the early 90's using SGI machines.
The Indy was a very popular multi-host system for such things. It was not a graphics powerhouse and in many low-end configurations its primary function was web serving.
(Disclaimer: I helped build the early web using SGI systems, with many major media companies as clients..)