ICT 202 Lecture Notes - Lecture 6: Binary System, Digital Electronics

• School: University of Kentucky
• Department: Information Communication Technology
• Course: ICT 202
• Professor: Nicholas Proferes

Document Summary

Decimal system is composed of 10 numerals or symbols. Also called the base-10 system because it has 10 digits. Places(10*3= 1,000) ; (10*2= 100) ; (10*1= 10) ; (10*0= 1) Values: 2,635= (10*3 x2) + (10*2 x6) + (10*1 x3) + (10*0 x5) Binary system is comprised of two numerals or symbols. Possible units for representation: 0 and 1. Places: (2*3= 8) ; (2*2= 4) ; (2*1= 2) ; (2*0= 1) Binary value: 1 1 0 1: (2*3 x1) + (2*2 x1) + (2*1 x0) + (2*0 x1) 1 1 0 1= (8) = (4) + (0) + (1) = 13. The circuitry in a computer or mobile device represents the on or the off states electronically by the presence or absence of an electronic charge. Eight bits grouped together as a unit are called a byte. Computer systems are often 8, 16, 32, or 64 bit.