No part of this work covered by the copyright herein may be reproduced, transmitted, stored, or used in any form or by any means graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, or information storage and retrieval systems, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without the prior written permission of the publisher.ĭirector of Learning Solutions: Sandy Clarkįor product information and technology assistance, contact us at Cengage Learning Customer & Sales Support, 1-80 © 2007 Delmar, Cengage Learning ALL RIGHTS RESERVED. For valuable information on pricing, previous editions, changes to current editions, and alternate formats, please visit to search by ISBN#, author, title, or keyword for materials in your areas of interest.Įmbedded C Programming and the Atmel AVR, Second Edition Richard Barnett, Larry O’Cull and Sarah Cox Vice President, Technology and Trades ABU: David Garza The publisher reserves the right to remove content from this title at any time if subsequent rights restrictions require it. Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Due to electronic rights restrictions, some third party content may be suppressed. This is an electronic version of the print textbook. Sample task: convert 2 megabytes to megabytes (SI).Embedded C Programming and the Atmel AVR, 2eĮmbedded C Programming and the Atmel AVR, 2e RICHARD BARNETT LARRY O’CULL SARAH COX Sample task: convert 2 megabytes to bytes (binary, also MiB). While it is much more convenient to use our converter, here are some examples for the math, step by step. This is where the SI system has an advantage, since in it you always multiply by 1,000,000 - an operation anyone can do by adding zeroes. However, when the number of megabytes is, say 64 or 128, calculation gets difficult. To convert 100 MB to Bytes you need to multiply 100 by 1,048,576, which is easy as you can simply shift the decimal pointer by two, resulting in 104,857,600 Bytes.
How to convert MegaBytes to BytesĬonverting megabytes to bytes is not so easy if done by hand due to large numbers you need to multiply by. Thus, most of the time it is developers / computer programmers who deal with data in bytes.Īnother reason to want to convert MB to bytes is if you want to switch between SI and binary units: converting to bytes, which is the base unit for both, is a convenient approach. In older character sets such as ASCII a Byte equaled one letter, number, or special symbol, while in newer ones such as Unicode it is even less than that, so its practical application is usually to measure small storage spaces, such as fields in a database. In contrast, a Byte is a very small quantity of data, only 8 bits. A small video can be from several dozens to several hundreds of megabytes. A typical audio file is between 2-3 MB and 50-60 MB, depending on compression.
Megabytes are used much more frequently in daily life, as most files we encounter have sizes in megabytes and even gigabytes. The two units measure data storage in memory (RAM) or on a disk drive of some sort: HDD, SSD, USB sticks (thumb drives), external drives, and so on. If you need to convert between bytes and megabytes, make sure you understand which definition is appropriate in your particular case. In an attempt to alleviate the IEC proposed a new unit: the MebiByte (MiB) in place of the binary megabyte, but it is yet to see adoption decades after the proposal was accepted. The first one comes from computer science and binary math, the second comes from units for measuring length, weight and force, where decimal makes sense.ĭue to the conflict, there is often a confusion. Both the standard binary and the SI decimal standard have a metric called "megabyte" with a symbol "MB" and the first is defined as powers of 2, while the second as powers of 10. According to the two competing definitions, the answer is either 1,048,576 bytes equal 1 megabyte or 1,000,000 bytes equal one megabyte.