Enter the size of the binary word or bus size in the text box, then click the Calculate button. A table is produced showing the value of each binary bit and total number of bytes actually addressable. E.G Enter 10 and click calculate. A table is produced showing the value of each bit. It shows that a numerical value 1024 can be produced. Remember that in memory terms bytes are usually rounded down. So, 1024bytes is referred to as 1Kbyte.