computer_fundamental_presentation(1).pptx

Computer presentation

1. Dhaka International University WELCOME TO OUR PRESENTATION DEPARTMENT OF CIVIL BATCH : 55 (2 nd )

2. Name Roll Masuda Parvin 9 Md Saiful Islam 10 Abir Hossan 11 Tanvir Niloy 12 Nusrat Jahan Barsha 52 Code :0611-1101 Fundamental of Computer Presented To : Presented by: Md Ariful Islam Lecturar Department of CSE

3. A piece of equipment/hardware which helps us enter data into a computer is called an input device. Input – Any data or instruction entered to computer. Input device helps to communicate with computer. Helps to enter information and issue commands. What is Input Device

4. Input Devices Keyboard Mouse Scanner Microphone Joystick

5. A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols into a computer. It is one of the most used input devices for computers Most common and widely used Made up of buttons called [KEYS] . Keys are arranged to sections Alphabet keys Function keys Numeric keys Arrow keys Command keys Keyboard

6. Mouse is a Pointing device Used to control the movement of mouse pointer an to make selections. Type of mouse Mechanical Mouse Optical Mouse Wireless Mouse Optical Mouse Mechanical Mouse Wireless Mouse Mouse

7. A scanner is a device that captures images from photographic prints, posters, magazine pages and similar sources for computer editing and display. Scanner Light sensing input device Type of scanner Bar code reader – decodes Information contained in bar codes. Optical Scanner – converts a documents text or graphics to digital data. Bar Code Scanner Optical Scanner

8. Microphone A microphone is a device that translates sound vibrations in the air into electronic signals and scribes them to a recording medium or over a loudspeaker. Microphone Used to input sound that is stored in digital from. Also called as mic. Also lets you to others to communicate with others.

9. Joystick The joystick is an input device that is used to control the cursor. The joystick is used for gaming purpose. A joystick is equipped with one or more push-buttons for controlling. Pointing device that works on principle. Function is same as mouse. It is a stick having spherical ball at both upper and lower ends. Joystick

10. What is Output Device An output device is a piece of hardware used to receive data from the computer. The results of data processing. Converts the electronically generated information tinto human readable form.

11. Monitor Printer Speaker Hard disk Flash drive

12. Monitor Monitor Commonly called as VDU (Visual Display Unit) Main output device. Can display text as well as graphic images. Types of monitor Cathode Ray Tube(CRT). Flat Panel Display. An electronic device with a screen used for display (as of television pictures or computer information.

13. Printer Printer Printer, also called computer printer is an electronic device that accepts text files or images from a computer and transfers them to a medium such as paper or film. It can be connected directly to the computer or indirectly via a network. Used to print text or illustrations. Type of printer: Daisy-wheel Dot- matrix Ink-jet -Laser LED

14. Speaker Speaker Speakers are standard output devices used with computer systems that enable the listener to listen to a sound as an outcome. Enable the computer to output sound. Allows users to listen to computer generated sound. Speakers are required to listen to music or video CD/DVD sound.

15. Hard Disk Hard Disk Made of aluminium or other metal alloys. Not removable. Several disks are packed together and mounted on a common drive. A hard drive is the hardware component that stores all of your digital content. Like documents, pictures, music, videos, programs, application preferences, and operating system represent digital content stored on a hard drive. Hard drives can be external or internal.

16. Flash Drive Flash Drive Solid state. Plug and play Portable Enable the computer to output sound. A flash drive stores data using flash memory. Flash memory uses an electrically erasable programmable read-only (EEPROM) format to store and retrieve data. Flash drives operate in a similar fashion as conventional hard drives. Flash drives are non-volatile, which means they do not need a battery backup.

17. Thank You