कम्युनिकेशन के तत्व (Component of communication)- sender, receiver, transmission medium & protocol.कम्युनिकेशन का उपयोग (Use of communication and IT Communication Process).नंबर सिस्टम (Number system of computer).प्रोग्रामिंग लैंग्वेज (Programming Languages) Machine, Assembly, High Level, 4GL, their Merits and Demerits.स्टोरेज डिवाइस (Various Storage Devices) – Magnetic Disks, Hard Disk Drives, Floppy Disk, Zip DriveOptical Disks, CD, VCD, CD-R, CD-RW, DVD,DVD-RW,Video Disk, Blue Ray Disc, flashiness/ MMC Memory cards, Solid-Stat Drive (SSD),.डाटा एक्सेस करने की विधियाँ (Data Storage and Retrieval Methods- Sequential, Direct and Index Sequential).प्रिंटर और उसके प्रकार (Printers and its Types) Impact and Non-Impact printer, Dot Matrix, Inkjet, Laser.मॉनिटर (Monitors)- Characteristics and types of monitor, Size, Digital, Analog, Resolution, Refresh Rate, Interlaced/Non-Interlaced, Dot Pitch.इनपुट डिवाइस (Input Devices): Keyboard, Mouse, Trackball, Joystick, Scanners, Digitizing tablet, Digital Camera, MICR, OCR, OMR, Light pen, Barcode & Barcode Reader, Quick Response Code (QR Code), Voice Recognition, Touch Screen.Personal Computer (PCs-evolution of PCs, configurations of PCs, Pentium and Newer, PCs specifications and main characteristics, Types of PCs- Desktop, Laptop, Notebook, Palmtop, PDA etc.कंप्यूटर के प्रकार (Types of computers) – Analog& Digital & Hybrid Computers, General & Special Purpose computers, -Micro,Mini, Main frame and Super computers, Characteristics and area of Uses.मेमोरी क्या हैं और मेमोरी के प्रकार (Memory – RAM, ROM, EPROM, PROM and other types of memory, Capabilities and limitations).कंप्यूटर के तत्व (Components of a computer system) – Control unit, ALU, Input / Output, Memory Mother Board.COMPUTERS FUNDAMENTALS DCA 1st Semester Notes UNIT I –