Book Image

Learn Computer Forensics – 2nd edition - Second Edition

By : William Oettinger
Book Image

Learn Computer Forensics – 2nd edition - Second Edition

By: William Oettinger

Overview of this book

Computer Forensics, being a broad topic, involves a variety of skills which will involve seizing electronic evidence, acquiring data from electronic evidence, data analysis, and finally developing a forensic report. This book will help you to build up the skills you need to work in a highly technical environment. This book's ideal goal is to get you up and running with forensics tools and techniques to successfully investigate crime and corporate misconduct. You will discover ways to collect personal information about an individual from online sources. You will also learn how criminal investigations are performed online while preserving data such as e-mails, images, and videos that may be important to a case. You will further explore networking and understand Network Topologies, IP Addressing, and Network Devices. Finally, you will how to write a proper forensic report, the most exciting portion of the forensic exam process. By the end of this book, you will have developed a clear understanding of how to acquire, analyze, and present digital evidence, like a proficient computer forensics investigator.
Table of Contents (17 chapters)
15
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16
Index

Random access memory?

RAM temporarily stores working data/code on an active computer system. Unlike on traditional storage devices such as hard drives, data can be read/written on RAM at extremely fast speeds. Current technology allows the RAM chips to be created around an integrated circuit chip with metal oxide semiconductor cells. The data stored within the RAM chips is volatile.

We lose volatile data when the computer system is no longer powered on. This is a significant reason the pull the plug tactic is no longer recommended when responding to a scene involving activated computer systems.

You may run into two different types of RAM: static RAM (SRAM) and dynamic RAM (DRAM). SRAM is considered faster and more efficient in terms of energy use, whereas DRAM is cheaper to produce than SRAM. Therefore, you will typically find SRAM used as cache memory for the CPU and DRAM chips used as memory chips for the computer system.

The following is a representation of a DRAM...