Google IT Support Professional Certification - Course 1: Technical Support Fundamentals, Complete Solution

Google IT Support Professional Certification - Course 1: Technical Support Fundamentals, Complete Solution Binary System The communication that a computer uses, also known as a base-2 numeral system Byte A group of 8 bits is referred to as a byte. Each byte can store one character, and we can have 256 possible values thanks to the base-2 system (2^8) Character encoding Assigns our binary values to characters, so that we as humans can read them UTF-8 Allows us to store a character in more than one byte Logic Gates Allow our transistors to do more complex tasks, like decide where to send electrical signals depending on logical conditions What is the highest decimal value you can represent with a byte 255 Abstraction To take a relatively complex system and simplify it for our own use Hardware Layer Made up of the physical components of a computer Operating System Allows hardware to communicate with the system Software Layer How we as humans interact with our computer User Interacts with the computer Ports Connection points that we can connect devices to that extend the functionality of our computer CPU Central Processing Unit. The brain of our computer, it does all the calculations and data processing RAM Random Access Memory. RAM is our computer's short term memory Hard Drive Holds all of our data, which includes all of our music, pictures, applications. Motherboard The body or circulatory system of the computer that connects all the pieces together. Programs Instructions that tell the computer what to do. External Data Bus How data travels