Fundamental of Computer and Information Technology PDF Summary
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Fundamental of Computer and Information Technology PDF
Introduction to Computer and IT Brief history of the development of Computers. Computer System Concept, Computer System Characteristics, Capabilities and Limitations, Types of Computer-Analog, Digital, Hybrid, General,
Special Purpose, Micro, Mini, Super. Generations of Computers. Types of PCL, Computer Organization and working, basic components of a computer System (Control Unit, ALU, Input/Output Functions and characteristic), Memory-RAM, ROM, EPR OM, PROM and other types of Memory.
Input devises Keyboard, Mouse, Trackball, Joystick, Digitalizing tablet, Scanners, Digital Camera, MICR, OCR, OMR, Bar-Code Reader, Voice Recognition, Light Pen, Touch Screen. Output Devices Monitors – Characteristics and types of Monitors – Digital, Analog, Size, Resolution, Refresh Rate, Interlaced/Non-Interlaced, Dot Pitch, Video standard- VGA, SVGA, XGA etc. Printers – Daisy Wheel, Dot Matrix, Inkjet, Laser, Line Printer, Plotter, Sound Card and Speakers.
UNIT – III
Storage Devices Storage Fundamentals – Primary Vs Secondary Data Storage and Retrieval l methods – Sequential, Direct and Index-Sequential. Various Storage Devices – Magnetic Tape, Magnetic Disks, Cartridge tape, data drives, hard disk drives, Floppy disk, Optical disk – CD, VCD, CR-R, CD-ROM, DVD. Number System Data Representation in Computers. Number System of Computers – Decimal, Binary, Octal, Hexa-Decimal Representation for their Conversion, Coding System – ASCII, BCD, EBCDIC etc. and Arithmetic of Number System.
UNIT – IV
Computer Software Need, Types of Software’s – System Software, Application Software. System Software – Operating System, utility Program, Programming languages, Assemblers, Compilers, and Interpreter.
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