Home / Muhammad Nouman Sheikh

Muhammad Nouman Sheikh

How To Avoid Phishing Scams

No one needs to fall prey to a phishing trick. There’s a justifiable reason that such tricks will proceed, however: They are sufficiently effective for cybercriminals to make monstrous benefits. Phishing tricks have been around for all intents and purposes since the initiation of the Internet, and they won’t leave …

Read More »

What Is Domain Name System (DNS) And How It Works?

  Chronicled Notes The inceptions of DNS go back to the season of ARPANET, when there were just a couple of PCs to get a passage in the database. A HOSTS.TXT record was kept up by Stanford Research Institute, which constituted the information of the considerable number of machines, and …

Read More »

Implementation Methods For Network Address Translation (NAT)

In the relatively recent past, the Internet had an issue. There was an appeal for Internet get to, yet just a predetermined number of accessible Internet (IP) addresses. One answer for this issue was the creation and wide organization of Network Address Translation (NAT), which basically settle numerous IP addresses …

Read More »

What Are Switches, Routers And Wireless Access Point

Computer Hardware And Software / Types Of Computer Software / System Software / Internet Applications

  Switches, switches, and remote access focuses Switches, switches, and remote access focuses perform altogether different capacities in a system. Switches Switches are the establishment of most business systems. A switch goes about as a controller, associating PCs, printers, and servers to a system in a building or a grounds. …

Read More »

Computer Hardware Components / Input And Output Devices

Computer Hardware Components

• COMPUTER HARDWARE A computer system consists of hardware and software. The physical components of a computer that we can see, touch and feel are called hardware. Computer hardware consists of input/output devices, storage devices, central processing unit (CPU) and the electronic circuitry that links these devices for Communication between …

Read More »

Wearable Computing Devices / Basic Operations Of Computer / Classification Of Digital Computers

basic operations of computer

Wearable Computing Devices All machines, components or devices that contain embedded, specialised computers are called computing devices. For example ATM machine, Digital alarm clock, Digital washing machine, Microwave oven, Toys, Cell phones, CD player, etc. are computing devices. All these devices Contain embedded Computer chips which allow these devices to do special computing …

Read More »

Short And Long Distance Wireless Communication

SHORT AND LONG DISTANCE WIRELESS COMMUNICATIONS Wireless communication may be differentiated based on the region it covers into short distance and long distance wireless communication. • Short Distance Wireless Communication:- Short distance wireless communication consists of very short distance of few meters (infra-red) to a distance of up to 50 …

Read More »

Communication Media And Communication Devices

communication media

Communication Media And Communication Devices:- Guided Communication Media:- It is also called physical or bounded communication media. In this type of media signals pass through a physical path. It uses cables that guide the data signals along a specific path. The following are some important guided media. • Telephone Cable …

Read More »

Data Modeling And Entity Relationship Diagram

DATA MODELING AND ENTITY RELATIONSHIP DIAGRAM:- Data modelings the process of designing logical structure of a database with a diagram using text and symbols to represent the way data needs to flow. This diagram is called Entity Relationship diagram EFC Data models define how data is connected to each other …

Read More »

Database Design Steps / Planning Database

Database Design Steps / Planning Database

PLANNING A DATABASE (Database Design Steps / Planning Database) :- Database planning is a systematic approach to the development of database that moves from concept to design and development to implementation. A well-designed database promotes Consistent data entry and retrieval. Database should be planned in a systematic way to save time, …

Read More »

Database Programming Languages / Basic Database Terminology

DATABASE LANGUAGES SQL (Structured Query Language) is a standard language for accessing and manipulating databases. There are three types of SQL languages for relational databases. These are: • Data Definition Language • Data Manipulation Language • Data Control Language Data Definition Language:- Data Definition Language (DDL) is a computer language …

Read More »

Advantages Of Mobile Phones And Disadvantages Of Mobile Phones

Advantages Of Mobile Phones And Disadvantages Of Mobile Phones

Advantages Of Mobile Phones And Disadvantages Of Mobile Phones. (Features And Limitations Of Mobile Communication Systems) Following are the features and limitations of mobile communication system. Features:- • Mobile devices readily access information from the World Wide Web. The validity and accuracy of information cannot be guaranteed since anybody can …

Read More »

Advantages And Disadvantages Of Wireless Networks

wireless signals

Advantages of Wireless Networks:- Wireless networks can easily add users without having to change the physical Connection. Wireless networks provide robust security protections. Traffic of a wireless network can be filtered or simply blocked very easily. Using wireless networks users are no longer tied to a specific location, as were …

Read More »

Computer Network Architect / Network Structure And Architecture

Network Architecture:- Network Architecture is the design of a communication system.It includes hardware devices such as routers and switches, cabling, network topology and physical and wireless connections.Network Architecture consist of server and client computers. Server Computer:- A computer on the network that shares resources for the others to use is …

Read More »

What Is Wireless Network Terminology / Introduction To Networking / Computer Networking Basics

What Is Wireless Network Terminology / Introduction To Networking / Computer Networking Basics:- Wireless Network Terminology includes Radio Signal, Radio Transceiver, Wireless Access Point, and Line Of Sight Communication. Radio Signal:- A radio signal or radio wave is an electromagnetic wave propagated by an antenna.Radio waves have different frequencies and …

Read More »