Technical blog

 Define hardware: All physical parts of computer is called hardware.  Or  All parts of computer that we can see and touch that is called hardware. For example. LCD, Mouse, keyboard, CPU Printer, Scanner, loud speaker etc Define software: All programs present in computer that is called software. For example. Notepad, word pad, MS office etc

 Define volatile memory (RAM) RAM ( Random Access Memory: Ram is a volatile memory is present in the motherboard.  It stores the data till computer is turn on.when computer will turn off ram removes the data from it.  Define non volatile memory : ROM (Read only memory). ROM is a non volatile memory that stores the data permanently For example. Boot setting is stored in ROM etc.  Storage devices or non volatile memories are CD, DVD, fDD (Floppy Disk Drive) Memory card, Magnetic Tape, USB Hard disk drive Floppy disk drive USB Magnetic tape  Memory card DVD

 Define hard copy: A page that we can see but can not touch that is called soft copy. For example: pages in MS word, wordpad and notepad etc How you will change your hard copy into soft copy?  Ans. By Scanner Define scanner: Scanner is an input device by which we can transfer the page or picture into the computer in picture format.                  OR   Scanner converts hard copy into soft copy Define hard copy A page that we can see and touch that is called hard copy. For example: Books, paper and files that you can take in your hand etc . How you will change soft copy into hard copy? And. By printer Define printer Printer is an output device that prints the data on page OR Printer is an output device that converts soft copy into hard copy.

 Parts of computer  01) CPU ( Central processing unit) 02) LCD (Liquid Crystal Display) 03) Keyboard 04) Mouse Definition of CPU: 01 ( Central processing unit) CPU is the main part of computer that is also called the brain of computer.  All parts of computer is connected with CPU.  Definition of  (02) LCD (Liquid Crystal Display) LCD is an output device which shows the result . Or ( processed data) result screen Definition of Keyboard: Keyboard is input device it is also called The Penal of keys or buttons. We can input the data to the computer through keyboard. Definition of Mouse: The Mouse is also input device by which we can control the arrow present in the computer screen. Definition of Speaker: Speaker is an output device. By which we can listen the music or sound present in the computer files. Just like videos or audios

 There are three types of computer 1 Analog computer 2 Digital computer 3 Hybrid computer Definition of analog computer A computer that indicate the weight or speed is called analog computer. For example: meter of vehicle etc. Definition of digital computer A computer that works on binary language (0,1) that is called digital computer For example: personal computer. Definition of hybrid computer A computer that perform both analog and digital computer functions that is called Hybrid computer   An other words  Hybrid computer has the speed of analog and the accuracy of digital computer. For example. Meter of petrol pump station.

  There are three parts of the computer 1: input  2: Processing 3: output  Processing device CPU Stands for "Central Processing Unit." The CPU is the primary  component  of a computer that processes instructions. It runs the  operating system  and  applications , constantly receiving  input  from the user or active software programs. It processes the data and produces  output , which may be stored by an application or displayed on the screen. NOTE:  The terms "CPU" and "processor" are often used interchangeably. Some technical diagrams even label individual processors as CPUs. While this verbiage is not incorrect, it is more accurate (and less confusing) to describe each processing unit as a CPU, while each processor within a CPU is a processing core.

 There are three parts of the computer  1: input  2: Processing 3: output  Input device Mouse The  mouse  is another important tool for communicating with computers. Commonly known as a  pointing device , it lets you  point  to objects on the screen,  click  on them, and  move  them. There are two main mouse types: optical and mechanical. The  optical  mouse uses an electronic eye to detect movement and is easier to clean. The  mechanical mouse  uses a rolling ball to detect movement and requires regular cleaning to work properly. To learn the basics of using a mouse, check out our interactive  /mousetutorial/