Module 2 S1 Data Com for students.pdf

Engr. Ma. Editha A. Grande, MAEd, PECE Ma. Editha A. Grande, MAEd, PECE SYNCHRONIZATION MODULE 2 Ma. Editha A. Grande, MAEd, PECE LEARNING OBJECTIVES q Identify the types of data communication codes q Differentiate the different character codes q Understand how each character...

Engr. Ma. Editha A. Grande, MAEd, PECE Ma. Editha A. Grande, MAEd, PECE SYNCHRONIZATION MODULE 2 Ma. Editha A. Grande, MAEd, PECE LEARNING OBJECTIVES q Identify the types of data communication codes q Differentiate the different character codes q Understand how each character are converted using the character codes Ma. Editha A. Grande, MAEd, PECE Key Points Types of Data Communication Codes The Character Codes Standard Organization Ma. Editha A. Grande, MAEd, PECE EVOLUTION OF DATA COMMUNICATIONS Ma. Editha A. Grande, MAEd, PECE ANY QUESTIONS Ma. Editha A. Grande, MAEd, PECE Key Points Types of Data Communication Codes The Character Codes Standard Organization Ma. Editha A. Grande, MAEd, PECE Data Communication Codes: An Overview Data communication codes are crucial for transmitting information effectively. These codes ensure accurate and efficient transmission by converting data into a standardized format. by Ma. Editha Grande  TYPES Data Link Control Character - used to facilitate the orderly flow of data from source to destination. Data Graphic Control Communica - involved the syntax or presentation tion Codes of the data at the receive terminal. Alpha/Numeric Character - used to represent the various symbols used for letters, numbers and punctuations. Ma. Editha A. Grande, MAEd, PECE Binary Codes 1 Simplicity 2 Efficiency Binary codes use only Binary code is a compact two digits, 0 and 1, way to represent data, making them ideal for allowing for efficient electronic systems. storage and processing. 3 Versatility 4 Ubiquity Binary codes can Binary codes are used in represent various types computers, mobile of data, including devices, and many other numbers, letters, and digital technologies. symbols. Alphanumeric Codes Text Representation Examples Encoding Standards Alphanumeric codes represent Common alphanumeric codes These codes provide a letters, numbers, and special include ASCII and Unicode, standardized way to represent characters using a combination which are widely used in text, ensuring consistent of symbols. computing and interpretation across different communication. systems.  Data Communication Codes  also referred to as: CHARACTER CODES,CHARACTER SETS, SYMBOL CODES OR CHARACTER LANGUAGES ÂBaudot Code ÂCCITT #2 ÂASCII code ÂCCITT #5 ÂEBCDIC ÂBar Code ÂQR Code Ma. Editha A. Grande, MAEd, PECE Morse Code Morse code represents letters and numbers using a series of dots and dashes. It was traditionally used in telegraphy and is still used in some applications, such as amateur radio. Dots and Dashes Telegraphy Letters and numbers are Historically used in represented by unique telegraphy for long-distance combinations of dots and communication. dashes. Amateur Radio Still used by amateur radio operators for communication. Baudot Code ASCII (American Standard Code for Information Interchange) ASCII is a standard for representing characters in computers. It assigns numerical values to letters, numbers, and special characters, making it possible for computers to exchange text data. Character Representation Keyboard Input Each character is represented by a unique numeric code. Keystrokes are translated into ASCII codes for computer processing. EBCDIC (Extended Binary Coded Decimal Interchange Code) - an eight-bit character encoding used mainly on IBM mainframe and IBM mid range computer operating systems. Unicode Unicode is an international standard for representing characters in computers. It extends ASCII to include a wider range of characters from different languages, making it suitable for global communication. 1 Global Support 2 Multilingual Unicode supports a vast Communication range of characters from Enhances multilingual various languages. communication and information exchange. 3 Standard Unicode is a widely adopted standard for character representation. Barcodes Barcodes are visual representations of data, using a series of bars and spaces to encode information. They are commonly used for product tracking and inventory management. Scanning A barcode scanner reads the bars and spaces. Decoding The information is converted back into a readable format. Identification The product is identified using the decoded information. Barcodes Product Identification Inventory Management Barcodes contain unique Barcodes streamline identifiers that allow for inventory processes, quick and efficient tracking enabling faster and more of products. accurate stock control. Point-of-Sale Data Storage Barcodes are essential for Barcodes can store retail transactions, information about a facilitating quick checkout product, such as its name, and reducing errors. price, and manufacturer. Magnetic Ink Character Recognition (MICR) Codes Banking Transactions MICR codes are primarily used in banking for processing checks and other financial documents. Magnetic Ink MICR characters are printed using magnetic ink that can be read by specialized devices. Error Reduction MICR codes provide reliable and accurate data entry, reducing the likelihood of errors. Security Features MICR codes contribute to the security of financial transactions by preventing alterations and fraud. Optical Character Recognition (OCR) Codes OCR Codes Used in document processing Scanned Text Convert scanned images of text into editable text files Applications Widely used for data entry, document management, and automated processes Advantages Speed up data capture, reduce manual errors, and enhance efficiency Quick Response (QR) Codes QR codes are two-dimensional barcodes, containing more information than traditional barcodes. They are widely used for sharing information, linking to websites, and accessing digital content. 1 Scanning A smartphone camera scans the QR code. 2 Decoding The QR code is decoded to reveal the encoded information. 3 Action The information triggers an action, such as opening a website or displaying a contact. ANY QUESTIONS Ma. Editha A. Grande, MAEd, PECE STANDARD ORGANIZATION ISO IEEE ANSI ITU-T EIA TIA Ma. Editha A. Grande, MAEd, PECE ISO (International Organization for Standardization) The ISO is the world's largest developer of voluntary international standards. Its mission is to promote the development of standardization and related activities in order to facilitate international exchange of goods and services and to promote cooperation in the spheres of intellectual, scientific, technological and economic activity. Founded 1947 Headquarters Geneva, Switzerland Membership 166 member countries Standards Developed Over 22,000 ITU (International Telecommunication Union) The ITU is a specialized agency of the United Nations that focuses on telecommunications and information and communication technologies (ICT). It is responsible for setting standards for telecommunication networks, services, and equipment, as well as promoting the development of ICT in developing countries. Telephone Broadcasting Sets standards for telephone Develops standards for radio networks, services, and and television broadcasting. equipment. Internet Satellite Promotes the development Sets standards for satellite and standardization of communication systems. internet technologies. Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers(IEEE) is an international professional organization founded in the United States and is comprised of electronics, computer, and communications https://www.ieee.org/ engineers. Ma. Editha A. Grande, MAEd, PECE American National Standards Institute (ANSI) is the official standards agency for the United States and is the U.S. voting representative for the ISO Although ANSI has no affiliations with the federal government of the United States, it serves as the national coordinating institution for voluntary https://www.ansi.org/ standardization in the United States. Ma. Editha A. Grande, MAEd, PECE  Electronics Industry Association (EIA) is a nonprofit U.S. trade association that establishes and recommends industrial standards. EIA activities include standards development, increasing public awareness, and lobbying. is responsible for developing the RS (recommended standard) series of standards for data and telecommunications. https://www.ecianow.org/eia-technical-standards Ma. Editha A. Grande, MAEd, PECE Telecommunications Industry Association (TIA) is the leading trade association in the communications and information technology industry The TIA facilitates business development opportunities and a competitive marketplace through market development, trade promotion, trade shows, domestic and international advocacy, and standards development. The TIA represents manufacturers of communications and information technology products and services providers for the global marketplace through its core competencies Ma. Editha A. Grande, MAEd, PECE STANDARD ORGANIZATION IAB IETF IRTF Ma. Editha A. Grande, MAEd, PECE  Internet Architecture Board (IAB) - is a technical advisory group of the Internet Society with the following responsibilities: Oversees the architecture protocols and procedures used by the Internet Manages the processes used to create Internet standards and serves as an appeal board for complaints of improper execution of the standardization processes Is responsible for the administration of the various Internet assigned numbers Acts as representative for Internet Society interests in liaison relationships with other organizations concerned with standards and other technical and organizational issues relevant to the worldwide Internet Acts as a source of advice and guidance to the board of trustees and officers of the Internet Society concerning technical, architectural, procedural, andMa. Edithamatters policy A. Grande, MAEd, PECE pertaining to the Internet and its enabling technologies  is a large international community of network Internet designers, operators, venders, and researchers concerned Engineering Task with the evolution of the Force (IETF) Internet architecture and the smooth operation of the Internet. Ma. Editha A. Grande, MAEd, PECE  promotes research of importance to the evolution of the future Internet by creating focused, long- Internet Research term and small research groups Task Force (IRTF) working on topics related to Internet protocols, applications, architecture, and technology Ma. Editha A. Grande, MAEd, PECE ANY QUESTIONS Ma. Editha A. Grande, MAEd, PECE Your Key Take Away? Ma. Editha A. Grande, MAEd, PECE  REFERENCES 1. W. Tomasi, Electronic Communications Systems Fundamentals Through Advanced, 6th ed. Singapore Pearson Education. Inc., 2014. 2. C. White, Data Communications and Networking, 4th ed. McGraw Hill Higher Education, 2007. 3. R. Blake, Electronic Communications Systems, 2nd ed. Cengage Learning, 2008. 4. G. Miller, Modern Electronic Communication, 9th ed. NJ: Pearson/Prentice Hall, 2008 Ma. Editha A. Grande, MAEd, PECE Thank you for listening! Ma. Editha A. Grande, MAEd, PECE God bless! Ma. Editha A. Grande, MAEd, PECE