CS-101 / Fall 1997

9/19/97


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Table of Contents

CS-101 / Fall 1997

Computer Hardware and Structure: Lecture Overview

Computer = Information Processor

Information Representation

A Bit About Bits

One If By Land and Two If By Sea

A Bit About Bits

A Bit About Bits

Bits as Codes

Bits as Codes

Bit-related Terminology

Bits as Numbers

Bits as Numbers

Information Representation: Digital Media

Digitizing the Real World

Color Depth (pixel depth)

Bits as Instructions

Computer Structure and Components

Input Devices

Pointing Devices

Computer Structure and Components

Output Devices

Output: From Pulses to People

Screen Output

Classes of Monitors

CRT (cathode ray tube)

LCD (liquid crystal display)

Paper Output

Impact Printers

Nonimpact Printers

Other Nonimpact Printers

Output You Can Hear

Machines Controlling Other Machines

Computer Structure and Components

Storage

Storage

Primary Storage: The Computer’s Memory

Secondary Storage: Input and Output

Magnetic Tape

Magnetic Disks

Hard Disks

Diskettes

Optical Disks

Computer Structure and Components

Central Processing Unit

CPU = Control Unit + ALU

Factors Influencing the CPU

Factors Influencing the CPU

Author: Azer Bestavros

Email: best@bu.edu

Home Page: http://www.cs.bu.edu/faculty/best