Book Image

Modern Computer Architecture and Organization

By : Jim Ledin
Book Image

Modern Computer Architecture and Organization

By: Jim Ledin

Overview of this book

Are you a software developer, systems designer, or computer architecture student looking for a methodical introduction to digital device architectures but overwhelmed by their complexity? This book will help you to learn how modern computer systems work, from the lowest level of transistor switching to the macro view of collaborating multiprocessor servers. You'll gain unique insights into the internal behavior of processors that execute the code developed in high-level languages and enable you to design more efficient and scalable software systems. The book will teach you the fundamentals of computer systems including transistors, logic gates, sequential logic, and instruction operations. You will learn details of modern processor architectures and instruction sets including x86, x64, ARM, and RISC-V. You will see how to implement a RISC-V processor in a low-cost FPGA board and how to write a quantum computing program and run it on an actual quantum computer. By the end of this book, you will have a thorough understanding of modern processor and computer architectures and the future directions these architectures are likely to take.
Table of Contents (20 chapters)
1
Section 1: Fundamentals of Computer Architecture
8
Section 2: Processor Architectures and Instruction Sets
14
Section 3: Applications of Computer Architecture

Clocking

The clock signal serving as the heartbeat of a processor is usually a square wave signal operating at a fixed frequency. A square wave is a digital signal that oscillates between high and low states, spending equal lengths of time at the high and low levels on each cycle. Figure 2.17 shows an example of a square wave over time:

Figure 2.17: Square wave signal

Figure 2.17: Square wave signal

The clock signal in a computer system is usually generated with a crystal oscillator providing a base frequency of a few megahertz (MHz). 1 MHz is 1 million cycles per second. A crystal oscillator relies on the resonant vibration of a physical crystal, usually made of quartz, to generate a cyclic electrical signal using the piezoelectric effect. Quartz crystals resonate at precise frequencies, which leads to their use as timing elements in computers, wristwatches, and other digital devices.

Although crystal oscillators are more accurate time references than alternative timing references...