Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
98-Comp-A3, Computer Architecture — National Exams, May 2014 (paper header reads "December 2013"). Open-book, 3 hours; six questions of equal value (20 marks each); FIVE constitute a complete exam (all six answered below as a complete study resource).
Reference texts: Patterson & Hennessy, Computer Organization and Design, 6th ed. — instruction encoding & ISA compatibility, I/O (Q1), data representation & IEEE-754 floating point & array addressing (Q2), cache organization (Q3), pipelining & parallelism (Q4), CPU performance (Q5), and memory technology (Q6); Mano & Ciletti, Digital Design, 6th ed. — memory decoding and chip composition (Q6).