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Information Technology. University Requirement. Lecture 1.
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Course Content:. Lecture1: Fundamentals of IT systems: • What is IT? Importance in modern work environments • Understanding computer components (CPU, RAM, storage, input/output devices) • Types of software: System software (OS) vs. Application software . Types of computers. Computer hardware and software components. Data representation and number systems. Introduction to networking. Introduction to internet, hardware, and software components for internet access. Algorithm development, algorithm representation, stepwise refinement, and problem-solving tools. Introduction to specialized application areas. Circuits Fundamentals. Power supply and Rectification; Amplifiers; Integrated Circuits; and VLSI(Very-large-scale integration)..
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Parts of an Information System. People Procedures Software Hardware Data The Internet.
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People. Most important part of any system Ways this text helps you become a more efficient and effective computer users Making IT Work for You Tips Privacy Environments Ethics Careers in IT.
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computer components :. Learning Objectives Differentiate between the five basic types of system units. Describe system boards, including sockets, slots, and bus lines. Recognize different microprocessors, including microprocessor chips and specialty processors. Compare different types of computer memory, including RAM, ROM, and flash memory. Explain expansion slots and cards. Describe bus lines, bus widths, and expansion buses. Describe ports, including standard and specialized ports. Identify power supplies for desktop, laptop, tablet, and mobile devices. Explain how a computer can represent numbers and encode characters electronically..
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Hardware – Types of Computers. Supercomputers Most powerful computers Mainframe computers Process large amounts of data Midrange computers Servers Personal computers PCs Five types of PCs.
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Personal Computer Types. Desktop Laptop (Notebook) Tablet Smartphones Wearables.
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System Unit Basics. Container that houses most of the electronic components that make up a computer system System Chassis Personal Computer - Most widely used type of computer.
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System Board. System board or main board or motherboard controls communication for the entire computer system All components and devices connect to the system board Data path and traffic monitor Allows various components to communication efficiently with one another.
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Microprocessor. Central Processing Unit (CPU) or Processor Contained on a single chip call a Microprocessor Brains of the computer Two Basic Components of the CPU Control unit Tells the computer system how to carry out a program’s instruction Arithmetic-logic unit (ALU) Performs arithmetic and logical operations.
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