IT

• Innovation


  Improvement, enhancement, development
• Factors of innovating technology


  • Human Mind
  • Human to Execute
  • Research
  • Raw Materials
  • Process (Step by step)
  • Manner (on how you do it)
• Advantages of technology


  • Makes our life easy and fast
  • Lest time
  • Online Classes
  • Comfortable
  • Increase Productivity
  • Hospital - life support
• Main components of computer

  • Hardware - Parts of the computer we can touch (tangible)
  • Software - We can see and experience (intangible)
  • People or Users - The one who manipulates the computer
• Input devices


  Devices we can use to input data or transfer/transport data to the computer
• Scanners

  Used to transfer/input graphical images or documents to the computer
• Factors that influence the quality of the monitor

  • Screen size
  • Resolution
  • Pixel - Smallest single component of an image and each pixel is composed of 3 or 4 components of colors
  • Dot pitch - Distance of pixels from one another
• Primary storage

  Devices that can store data temporarily and are dependent on electricity, located in the Computer System Unit (CSU)
• Primary storage


  • Random Access Memory (RAM)
• Classification of secondary storage

  • Magnetic Storage (Floppy Disk, Hard Disk)
  • Optical Storage (Compact Disc (CD), Digital Video Disc (DVD))
  • Chip Storage (Flash Drive)
• Classification of computers


  • Pocket/Palm Computer
  • Desktop Computer
  • Notebook Computer
  • Laptop
  • Mainframes Computer
  • Super Computer
• Software


  Intangible component of computer (already created), step by step instructions created by programmers, composed of different codes
• System utilities


  Software that can be enhanced or improves the operation of the computer, assists the user by improving productivity
• Application software


  Software used for specific purpose, located in Operating System
• Command line user interface (CLU)

  Interacting the computer by typing the command, requires a user to have a good memory of commands to perform an operation
• Icons


  Symbols that represent tools/menu bars
• Parts of CPU


  • Fan (represents as exhaust fan)
  • Heatsink (it absorbs the heat)
  • Control Unit (CU) - Reads and interprets the input data, controls the flow of the instruction/data in and out of the primary storage
  • Arithmetic Logic Unit (ALU) - Where the execution of instruction/data happens
  • Register - Used to store data/instruction inside the processor temporarily
• Binary format


  Only language that the electricity could read, accept, and understand, all the letters and symbols are being transferred to the binary, composed of ones and zeros (8 bits), 8 bits is equivalent to 1 byte
• Random access memory (RAM)


  Primary storage, stores the data while typing in the secondary data
• Buses


  The data or instructions travel in the chips via electric pathways
• American standard code for information interchange (ASCII)

  Determines the representation of numbers by a series of binary digits, all CPUs have ASCII installed in it