Select the true statements $.$ The "fetch$-$execute cycle $"$ refers to a software engineering principle A pipeline is an optimization technique in processor design to improve the instruction rate. In IEEE $754$ floating point format, the binary string $11111111111111111111111111111111$ represents the value RISC processors are not widely used today because of their small instruction sets. x$64$ is a CISC ISA for many Intel and AMD processors