CP102 Lecture Notes - Lecture 2: Blu-Ray, Network Interface Controller, Hdmi
Document Summary
Chapter 2: looking at computers understanding the parts. Perform four major funcions: input: gathers data, allows entering data, process: manipulates, calculates, or organizes data, output: displays data and informaion, storage: saves data and informaion. Bit: binary digit, 0 or 1. Byte: unique combinaions of 8 bits of 0s and 1s. Decimal values: 327 = 3*100 + 2*10 + 7. Examples: keyboard, mouse, microphone, scanner, digital camera, stylus. Send data out of the computer in the form of: text, pictures, sounds, video. Wireless speaker systems: headphones or earbuds. Motherboard: cpu, rom, ram, and cache, slots for expansion cards, network interface card (nic) Random access memory (ram: stores instrucions and data, series of several memory cards or modules, temporary (volaile) storage. Read-only memory (rom: stores start-up instrucions, permanent (non-volaile) storage. Central processing unit (cpu: brains of the computer, controls all funcions of the computer"s components, processes all commands and instrucions, billions of tasks per second.
