लेन के तत्व (components of LAN)- Media, NIC, NOS.टोपोलॉजी (Topologies of LAN) – Ring, Bus, Star, Mesh and Tree topologies structure, uses, advantage & disadvantages.कनेक्शन के प्रकार (Types of connections)- Dial up, Leased Lines, ISDN, DSL, RF, Broad band uses, advantages & disadvantages.कम्युनिकेशन केबल (Communication Channels)- Twisted, Coaxial, Fiber Optic, Modem-Working and characteristics.कम्युनिकेशन के तत्व (Component of communication)- sender, receiver, transmission medium & protocol.कम्युनिकेशन का उपयोग (Use of communication and IT Communication Process).
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.
कंप्यूटर के तत्व (Components of a computer system) – Control unit, ALU, Input / Output, Memory Mother Board.COMPUTERS FUNDAMENTALS DCA 1st Semester Notes UNIT I –