Hardware+_+Software

Hardware Software - A Digits in a Computer ASCII ASCII One ASCII Digit Eight Binary Digits Two Hex Digits ASCII Hex Binary C 43 01000011 S 53 0000

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CS 170:  01000011010100110010000000110001 001101110011000000111010   Prof. Jim Appenzeller [email protected]
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Digits and PandA 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K  L M N O P Q R S T U V W X Y Z α β χ δ ε φ γ η Ι ϕ κ λ μ ν ο π θ ρ σ τ υ ω ϖ ξ ψ ζ          Do digits matter? To Be or Not to Be  Simplest way to describe the physical world is with a Yes or No type  of description.  Logic is based on True and False If digits don’t matter, then PandA can be represented by anything
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Representing Analog Information Digitally Analog Sound Wave Digital  Representation of   Sound Wave Digit
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Digits in a Computer There are 10 types of people in the world, those who understand binary and those who don’t. Binary Binary
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Digits in a Computer Hexadecimal Hexadecimal One Hex Digit Four Binary Digits
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Unformatted text preview: A ???? Digits in a Computer ASCII ASCII One ASCII Digit Eight Binary Digits Two Hex Digits ASCII Hex Binary C 43 01000011 S 53 01010011 20 00100000 1 31 00110001 7 37 00110111 30 00110000 : 3A 00111010 Under the Hood ALU Control Input Output Memory Anatomy Anatomy Cycle Cycle • Instruction Fetch • Instruction Decode • Data Fetch • Instruction Execute • Result Return 9-8 Bits, Bytes and RAM Digital Wave 1 Byte Slice of Wave Long Term Persistent Storage Hard disks • Mechanism • Speed • Capacity • Long term persistent storage Other Storage (Archival Memory) • Magnetic Tapes • CDs ▫ Read ▫ Write (burn) • DVDs • Flash Media A Computer’s View of Software Layers of Software File System Example File Names • my_file.html (GOOD) • my_doc.docx (GOOD) • My Docment.doc (Could be a problem) • something_else.xls...
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This note was uploaded on 12/28/2011 for the course 198 170 taught by Professor Kristianstout during the Spring '10 term at Rutgers.

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Hardware Software - A Digits in a Computer ASCII ASCII One ASCII Digit Eight Binary Digits Two Hex Digits ASCII Hex Binary C 43 01000011 S 53 0000

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