Not at all. It's often something some people feel quite strongly about and disagree with each other about.
The gender is often derived from synonyms or etymologically related words. I'm guessing the reason it's "Der Computer" for example is that "Computer" works similarly to e.g. "Trockner" (drier) or "Rechner" (calculator, in fact often the German synonym for "Computer") and these are all male (as generally words ending in -er tend to be).
OTOH it's "Das Steak" (maybe because "Das Fleisch" or "Das Kotlett"?) and "Das Shirt" (maybe because "Das Hemd"?). The fallback generally seems to be "das", i.e. neuter, not male.
An example of something with inconsistent use is "Der Laptop" vs "Das Laptop". Presumably this is because "Der Laptop" is derived from "Der Desktop", which in turn is likely simply a shorthand for "Der Desktop-Rechner", making it male. Even the Duden (the closest thing to a "standard" dictionary in Germany) lists it as "der; auch das Laptop" (i.e. "der" seems to be somewhat more common but both are in use).
The gender is often derived from synonyms or etymologically related words. I'm guessing the reason it's "Der Computer" for example is that "Computer" works similarly to e.g. "Trockner" (drier) or "Rechner" (calculator, in fact often the German synonym for "Computer") and these are all male (as generally words ending in -er tend to be).
OTOH it's "Das Steak" (maybe because "Das Fleisch" or "Das Kotlett"?) and "Das Shirt" (maybe because "Das Hemd"?). The fallback generally seems to be "das", i.e. neuter, not male.
An example of something with inconsistent use is "Der Laptop" vs "Das Laptop". Presumably this is because "Der Laptop" is derived from "Der Desktop", which in turn is likely simply a shorthand for "Der Desktop-Rechner", making it male. Even the Duden (the closest thing to a "standard" dictionary in Germany) lists it as "der; auch das Laptop" (i.e. "der" seems to be somewhat more common but both are in use).