Virus

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.…
Software

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…
Operating System Introduction

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…
Binary System and ALU Logic Operation

ALU Analog Value Analog quantity has continuous values.Most of the things in nature appear in analog form. Temperature never goes from 30 to 31 instantly.It takes infinite steps. If we draw a graphical representation, it will give us a continuous…
Introduction to Computing

Computer. Computer is an electronic device that perform computing Operates under the control of instructions (Software) Accept data as input. Manipulate data as per instructions. Generates information Computer Characteristics Fast Computer can process data with amazing speed Reliable Computer has…
Computer Ports

  Computer Ports Computer ports or Motherboard I/O interfaces are used to connect external devices to the computer. These interfaces are mostly located on the back side of the motherboard. Number of Interfaces depends on the size of Motherboard and technology…
Ethernet

Dailymotion Ethernet Introduction Ethernet is the name of LAN standard defined by IEEE 802.3. It was basically introduced as a LAN technology.With the introduction of Gb Ethernet. Now It is MAN and WAN standard. Shared access network technology Link layer…
RAM Random Access Memory

RAM Random Access Memory It is a type of memory and store data. A processor can access its individual memory cell in any sequence. It is: Volatile memory. Temporary memory. Primary memory. We have already discussed volatile, temporary memory and primary…
OSI Reference Model

OSI Reference Model In the beginning, when networks established, devices can communicate with devices of the same manufacturer. OSI (open system interconnection) reference model was first introduced by ISO (international organization for standardization).Its main purpose is to facilitate communication between two systems…
Storage Devices

Storage Devices Storage devices are used to save data in a computer.In this video, we are going to learn some more information about storage device.We will cover following definitions Storage devices volatile memory RAM Non-volatile memory Primary storage Secondary storage
How to check a computer.

How to Check a Computer? How to check a computer? It is a basic question when purchasing a computer.In our daily life, a computer is an important and very useful machine. We are using it to perform several functions in our…