O'Reilly logo

CISA® Certified Information Systems Auditor®: Study Guide, Third Edition by David Cannon

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Understanding the Differences in Computer Architecture

All computers are not created equal. The differences in architecture have a substantial impact on performance and system security. However, every computer has three basic types of components:

Central Processing Unit The first component group centers around the central processing unit, also known as the CPU. The CPU performs mathematical calculations with the assistance of an internal arithmetic logic unit, a high-speed memory cache, and working memory space known as random access memory (RAM). Data stored in RAM is erased when power is turned off.

Input/Output The second component group provides input and output to peripheral devices such as keyboards, monitors, and disk drives. This input ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required