COMP 273 Lecture Notes - Lecture 4: Binary Number, Octal, In C
25 Jan 2017
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Document Summary
Last class, we looked at numbers in a theoretical way. We learned that a bit was the fundamental unit inside the computer. We learned you can group bits in certain ways. As engineers, the task is to figure out the best groupings. There are four common ways to group bits together: (1) nibble : 4 bits (2) byte : 8 bits. Fundamental data information unit (3) word : (4) address. Can be different lengths depending on the system. Nowadays, you see 32 or 64 and they"re thinking of 128. It is the size of a register inside your cpu (such as r1, r2, r3, l and r from the alu): It has been 32, 64, and they"re thinking of 128. Depends on the system which fixed number the address is. Most often/these days, register size is equal to address size (not always).
