Author: Salman Ahmed

Virus

Posted on July 22, 2018 by | 0 Comments
Computer Virus A virus is a malware/harmful software which infect a computer function. Malware = malicious + Software .A computer virus reside on a host computer. A virus attaches itself to a file. A file containing a virus is called infected file.…
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Cloud Computing

Posted on July 18, 2018 by | 2 Comments
Cloud Computing Cloud computing is a computing infrastructure where a large pool of system are connected to internet for application, data and storage services. Pay as per use model Prerequisite:  Operating system, online storage Public Cloud Public clouds are owned…
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TeamViewer

Posted on July 17, 2018 by | 0 Comments
Team viewer is a simple software to control / access any PC in the world by using Internet. You can access any Computer, You can transfer files, you can shut down the other PC and many more What is Teamviewer?…
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Software

Posted on July 11, 2018 by | 0 Comments
Software Software is the set of instructions which directs the computer hardware to perform a task is called a program or software. System Software System software controls internal functions like data processing, data movement, memory utilization and also control the…
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VoIP Voice Over Internet Protocol

Posted on July 10, 2018 by | 0 Comments
VoIP Voice Over Internet Protocol   Topics PSTN VoIP VoIP Architecture Codec VoIP Gateway Signalling Protocols VoIP Terminals Advantages and Disadvantages PSTN Public Switched Telephone Network It is known as landline telephone system. It was designed for purely analog voice…
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Cryptocurrency

Posted on July 5, 2018 by | 0 Comments
Cryptocurrency Currency is the medium of exchange between two parties.A cryptocurrency is a medium of exchange using cryptography to secure the transactions and to control the creation of new units.First cryptocurrency was introduced in 2009 with the name of bitcoin.…
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SONET Synchronous Optical Network

Posted on July 1, 2018 by | 2 Comments
SONET Synchronous Optical Network Multiplex electrical signals (Digital) from different sources and creates optical carrier (OC). USA, CANADA and JAPAN developed T1 Standard. ANSI develop  SONET. The rest of the world uses a primary rate of E1. ITU-T develop  SDH.…
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Operating System Introduction

Posted on June 27, 2018 by | 1 Comment
Operating System It is an interface between computer user and computer hardware. It is the collection of system software used to manage the overall operation of the computer. prerequisite : Introduction to computing Basic Function of an Operating System Control…
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Collision Domain and Broadcast Domain

Posted on June 22, 2018 by | 1 Comment
Video Contents Collision Domain Collision domain is a network segment in which collision can happen. It is a part of network where packet collision can occur. Collision domain applies in wireless networks and early version of ethernet networks. Collisions will…
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