What type has a scratch of 750 GB?
CREATE TABLE "stichting_academisch_rekencentrum_amster" (
  "number" real,
  "type" text,
  "clock" text,
  "scratch" text,
  "memory" text,
  "cache" text
);
SELECT "type" FROM "stichting_academisch_rekencentrum_amster" WHERE "scratch"='750 gb';