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© 2005 Pearson Addison-Wesley. All rights reserved Figure A.1 Each octal digit is exactly equivalent to three binary digits. OctalBinaryOctalBinary 00004100.

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Presentation on theme: "© 2005 Pearson Addison-Wesley. All rights reserved Figure A.1 Each octal digit is exactly equivalent to three binary digits. OctalBinaryOctalBinary 00004100."— Presentation transcript:

1 © 2005 Pearson Addison-Wesley. All rights reserved Figure A.1 Each octal digit is exactly equivalent to three binary digits. OctalBinaryOctalBinary 00004100 10015101 20106110 30117111

2 © 2005 Pearson Addison-Wesley. All rights reserved Figure A.2 Each hexadecimal digit is exactly equivalent to four binary digits. HexBinaryHexBinary 0000081000 1000191001 20010A1010 30011B1011 40100C1100 50101D1101 60110E1110 70111F1111

3 © 2005 Pearson Addison-Wesley. All rights reserved Figure A.3 The ASCII code. CharacterASCIICharacterASCII 00011 0000I0100 1001 10011 0001J0100 1010 20011 0010K0100 1011 30011 L0100 1100 40011 0100M0100 1101 50011 0101N0100 1110 60011 0110O0100 1111 70011 0111P0101 0000 80011 1000Q0101 0001 90011 1001R0101 0010 A0100 0001S0101 0011 B0100 0010T0101 0100 C0100 0011U0101 D0100 V0101 0110 E0100 0101W0101 0111 F0100 0110X0101 1000 G0100 0111Y0101 1001 H0100 1000Z0101 1010

4 © 2005 Pearson Addison-Wesley. All rights reserved Figure A.4 Some common graphics formats. ExtensionDescription AVIMicrosoft’s audio video interleaved format. Used for movies and videos, with soundtrack. Access through Windows Media Player. BMPMicrosoft Windows bitmap. No compression. GIFGraphics interchange format. A de facto Web standard developed by CompuServe for compressing bitmapped graphics and pictures. Lossless. Limited to 256 colors. JPG or JPEG Joint Photographic Experts Group. A de facto Web standard for compressing bitmapped still images and photographs. Lossy. MOVQuickTime movie file. The Apple Macintosh video format, now supported by Windows. MPG or MPEG Motion Picture Experts Group. A highly compressed format for storing movies. PDFPortable Document Format. Adobe Acrobat’s page definition format. Download Acrobat Reader to view a PDF file. PNGPortable network graphics. A proposed replacement for GIF. Lossless, with better compression than GIF. QTWQuickTime for Windows. Movie files. SVGScalable vector graphics. An open, XML-based vector graphics standard. SWFMacromedia Shockwave Flash file. Flash is a proprietary, scalable, vector graphics file format. Requires a downloadable plug-in. TIF or TIFF Tagged image (or information) file format. A bitmap format popular in desktop publishing applications. No compression.

5 © 2005 Pearson Addison-Wesley. All rights reserved Figure A.5 Some common audio formats. ExtensionDescription AIFAudio interchange format. An Apple Macintosh format. AUAudio file. An early Internet sound format. MID or MIDI Musical instrument digital interface. Access through Windows Media Player. MP3MPEG, audio layer 3. MP3 uses a compression algorithm that shrinks CD-level sound files by a factor of 12 with no loss in sound quality. A popular format for swapping audio files. RA or RAM RealAudio file. Used for Internet streamed audio and video. WAVWaveform. Sound file for Windows. Access through Windows Media Player and Sound Recorder.


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