Category: Computer Science

OSI model and layers

International standard organization (ISO) provide us the model known as Open systems interconnection. This model has seven layers. Each layer has its own properties, functionalities and protocols as pre-defined by the organization. 1) Physical Layer 2) Data Link Layer 3)

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Data and signal (Analogue & Digital)

What is Difference between Data and signal? There is difference between Data and signal & the important points are given below:- # Data Signal 1 The Entities which convey meaning within computer or computer system. These are the electromagnetic or

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OSI Model (History & Explanation)

In early nineteens 19’s, only the devices of same company could connect to each other. The devices of different companies could not be connected to each other (for example Microsoft devices could connect to other Microsoft devices but not with

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What is Network? Difference Between Network and Networking? Explain Types of Networks? How many types of Network Topologies?

Network is the combination of two or more devices (computers, mobiles or laptops) which are connected with one another to share information and data. The most common example of network is THE INTERNET. Network is established by following a certain

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DBMS – Overview

It collects the relevant data. Afterwards, the collection of data is about facts and figures  which processed to produce information. In Database, the related data is often represented as record-able facts. Data helps to produce the relevant information, which is

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Computer Network – Overview

It is the system of interrelated computers and hardware items or peripherals such as printers is known as computer network. Such connected computer item having computer assists information distribute among them. Computers may attach to each other by both wired

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Operating System – Overview

An operating system (OS) is a collection of software that accomplishes computer hardware possessions and delivers collective facilities for computer programs. It is a dynamic module of the system software in a computer system.  It is system software that acts

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What are Hardware Components?

Hardware are the physical components which we can touch and feel. Computer Hardware are the collection of physical components that constitutes a complete computer system. There are many physical components referred as items of computer hardware as like monitor, mouse,

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What are the Functions of Operating System?

Functions of Operating System Operating system provides an extensive verity of functions.  Below are shown the imperative operating system functions we believe are worth rating. Process management Memory management File and disk management Security management Input/output or device management Interpretation

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What are the Types of Operating System?

Types of Operating System Here are some types of operating system which are extensively in use . Batch operating system Network operating system Time sharing /multitasking operating system Distributed operating system Embedded operating system Batch Operating System A sort of

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