Engineering Practicals and Notes: Shailesh Patel

8. What is E-mail, blogs? Explain with advantages and disadvantages? Email stands for electronic mail. It is one of the most popular services of the internet. It is a technology of ICT to exchange digital messages between sender and receiver. An email is a letter that is sent over a computer network instead of being sent through the post. You can attach documents and photos to emails, just like you can include a photo or a document with a letter.   Just bcoz of launching of android phones in 2009 in India and Digital India concept in 2015 it become more and more popular than it has been and majority of people unaware of Email and ICT technology have initiated using the email facility other ICT technologies. Advantages of Email: ·       Emails are delivered in an instant when compared to traditional mailing post. ·       Emails can be sent and received from any internet enabled computing device, to anyone and anywher...

6. What is CCTV networking structure? Explain.  Nowadays everyone talk about CCTV facility for security purpose, but still they don’t know what the full form of CCTV is. The full form of CCTV is Closed – Circuit Television. Basic components require for CCTV network are Cameras: The security cameras of a CCTV system DVR: The security DVR is the heart of a CCTV system. CCTV Cable. BNC Connectors ( Bayonet Neill–Concelman connectors) CCTV Power Supply Tools Basic components require for wireless CCTV network are Wireless Cameras IP Camera and Wireless Antenna/Transceiver Network Video Recorder (NVR) Wireless Access Point Outdoor Wireless Systems Wireless Transceiver Omni-directional Antenna PoE Injectors Basic Structure of CCTV History of CCTV The first CCTV system was installed by Siemens AG in Germany in 1942, for observing the launch of V-2 rockets Walter Bruch a German engineer was respon...

5. Learn and identify institute’s computing networking structure. And learn how to create peer to peer      and LAN networks. All the computers in our campus are connected in network for exchanging Information and data and sharing resources, which are again connected to a single server called cyberom for internet. The basic components used to create a small computer network.      Two or more computers           Hub or Switch           RJ 45 connector (Registered Jack)          Cables (cat-5, cat-6)          Crimping tool      Crimping tool is not a part of network but use for connecting connectors.  Types of Network in same location          Peer to peer network (P2P)          Local Area Network (LAN) Peer-to-peer (P2P) network is created between two or more...

4.  List and Explain basic Linux commands. Basic Linux commands are ls mkdir cd pwd cat more head and tail rm cp chmod grep date cal whoami ls Command ls : This is a list command. It will display the list of directory without any details. ls – al : This will display the formatted  list of files and directories along with hidden files and other details like time, date, size, permissions etc. ls – t : it will display the sorted formatted list of files and directories other details like time, date, size, permissions etc.. mkdir command This command is used to create the directory. Example: student@abg2:$ mkdir Patel It will create the directory Patel cd command cd:   This command will change from current directory to home directory or from current to specified directory . Example: student@abg2:~$ cd Patel                This will change to Patel directo...

3. What is Operating System? Explain basic DOS commands. An operating system (OS) is a software program that manages the hardware and software resources of a computer. The OS performs basic tasks, such as controlling and allocating memory, prioritizing the processing of instructions, controlling input and output devices, facilitating networking, and managing files. During the booting process commands are automatically loaded into the computer’s memory. They are in fact included in the Command.com file. So these commands are executable immediately after getting the dos prompt. A few internal commands are           VER           VOL           DATE           TIME           CLS           DIR           MD           CD           PATH  ...