Eijkhout, Chow, and van de Geijn's "Introduction to High-Performance Scientific Computing, Chapter 3: Computer Arithmetic"
Read sections 3.1 and 3.2 on pages 88-94 on representation of integers and real numbers. In subunit 2.2, you have previously read about number systems and the representation of numbers used for computing. This reading will give you a chance to review that material.
Computer architecture comprises components which perform the functions of storage of data, transfer of data from one component to another, computations, and interfacing to devices external to the computer. Data is stored in terms of units, called words. A word is made up of a number of bits, typically, depending on the computer, 32 bits or 64 bits. Words keep getting longer, i.e., larger number of bits. Instructions are also stored in words. In previous subunits, you have seen examples of how instructions are stored in a word or words. In this subunit, you will see how numbers are stored in words.