Notes on Java Programming.

Chapter One Notes Main Hardware -CPU - (Central Processing Unit) executes each step -I/O Devices - (input/output devices) keyboards, monitors, mouse,etc... -Main Memory(RAM) - Random Access Memory - Temporary Storage, smaller storage, faster access -Secondary Memory - Hard Drive, floppy disk, CD. Permanent Storage, larger storage, slower access One address location is 8 bits which is equivalent to 1 byte.* SOFTWARE -Applications - games, Microsoft Word, web browser, etc... -System - Operating System: …

…be used to create different objects An object represents something with which we can interact in a program -Has attributes and behaviors -Provides a collection of services that we can tell it to perform for us -The services are defined by methods in a class that defines the object Inheritance -one class can be used to derive another -classes can be organized into in heritance hierarchies ACCOUNT ↓ ←→ charge account bank account ↓ ← → savings account checking account