PLS 21 Notes (for MT1)

PLS 21 Notes (for MT1) - What are the Essential Parts of a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
LECTURE 1 A few Examples of Computers in Your Daily Life Phone: land line and cell phones Vehicles (ignition timing, fuel mixture) Enrollment system at UCD Computer games Traffic flow (stoplights) Desktop computers (homework!) Delivery systems (USPS, UPS, FedEx) E-mail, texting, surfing the Web I-pod, other digital music systems Credit card charges What Can a Computer Do? • Very fast calculations • Reliable calculations • Store information • Retrieve information • Reliable storage and retrieval • Run a PROGRAM Receive inputs – Produce outputs What is a Computer? A devices that, under a program’s direction & control, performs four basic operations: IPOS I nput, P rocessing, O utput, S torage The single most defining characteristic of a modern computer is its ability to run programs
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: What are the Essential Parts of a Computer? Hardware : The physical components of the computer (Motherboard, CPU, RAM, HD, etc.) Software : The programs that run on the computer (BIOS, operating system, word processor, spread sheet). The whole is more than its parts The Essential Parts ABlackBox Inputs Outputs Software (Programs) Input Something happens in here output What surrounds the Black Box? Inputs Keyboard Mouse Internet WWW E-mail Scanner Digital Camera Sensors (GPS, RFID, weight, moisture, etc.) *Outputs Flat screen Projector Printer (B&W laser) Printer (Color Inkjet) Speakers Servo devices Internet ( E-mail) *external memory-hard drive, flash drive...
View Full Document

Page1 / 2

PLS 21 Notes (for MT1) - What are the Essential Parts of a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online