সঠিক উত্তর হচ্ছে: Mission-critical systems have tended to remain there.
ব্যাখ্যা: Early mainframes had a single processor, which was known as the central processing unit (CPU). Today's IBM® mainframes have a central processor complex (CPC), which may contain several different types of z/Architecture® processors that can be used for slightly different purposes.
মন্তব্য প্রদান করতে দয়া করে প্রবেশ কিংবা নিবন্ধন করুন।