Chapter 2 Essential of Computers System.pdf

Chapter 2 of computer

1. Dr. Honey Tyagi
Assistant Professor
AISSMS College of HMCT, Pune
[email protected]
Chapter 2
ESSENTIAL OF COMPUTER
SYSTEM

2. OBJECTIVES
Explain Computer Hardware
Discuss relation of hardware with software
State Computer memory
Identify Input devices
Identify Output devices
Understand the use of Software and its types

3. Computer Hardware
It includes physical parts of the computer
Electronic components which are supported by electrical devices and mechanical system
Hardware represents the physical and tangible components of a computer
Give and 5 Examples????
A computer consists of Fiveprimary hardware components
Input devices
Output devices
CPU
Storage devices
Memory

4. Input Devices
Allows data and programs to
be sent to the CPU.
•Mouse
•Keyboard
•Joystick
•Microphone
•Webcam
•Scanners

5. Types of Mouse
•Wired Mouse
•Wireless Mouse
•Ball/Mechanical Mouse
•Optical Mouse
•Laser Mouse

7. Types of Keyboards
Mechanical Keyboard
Ergonomic Keyboard
Flexible Keyboard
Gaming Keyboard
Wireless Keyboard

9. Other Pointing
Devices
Trackball
Track point
Touch pad
Touch Screen

10. Joystick–input device for
computer games
Light Pens –light-sensitive pen
like device
Stylus–pen like device
commonly used with
tabletPCs and PDAs(personal
digital assistants).

11. Scanning Devices
Optical scanners
Bar code readers
Character and mark recognition devices:
MICR ,OCR ,OMR, Magnetic strip reader, Smart
Card reader )

13. Image Capturing Devices
Digital
Cameras
Digital Video
Cameras
Webcam

14. Output Devices
Media used by the
computer in displaying its
responses to our requests
and instructions.
•Monitor
•Speakers/Headphones
•Printer and Plotter
•Projectors
Cathode Ray Tube (CRT)
Liquid Crystal Display (LCD)/LED (Light emitting diode)

15. Dot matrix
printer
Photo printer
Laser
printer
Printers and Plotter
Plotter
Inkjet printer

16. Projectors

17. •Find 5 well known brands of printers
•List down 5 Input devices
•List down 5 Output devices

19. Video links
•Storage devices: https://www.youtube.com/watch?v=FLQBAe0gkRA
•Storage memory: https://www.youtube.com/watch?v=t3sxTKF66M0

20. Secondary Storage Devices
•Attached to the computer
system to allow you to store
programs and data permanently
for the purpose of retrieving
them for future use.
•Hard disk, DVD,CD Rom, USB
flash drive (Pen-drive)

22. OBJECTIVES
•Software
•Application Software
•Software used in Hospitality Industry

23. Software
•Software is a set of programs, which is designed
to perform a well-defined function. A program is a
sequence of instructions written to solve a
particular problem.
•There are two types of software − Software
•System Software
•Application Software

25. Relation of hardware with software
•Hardware & Software both are interdependent on each other.
•The software can not be used if there is no support of any device.
•When no proper instruction given, the hardware cannot be used.
•To get a selected job done on PC,therelevant software package is
required.
•Hardware can be former expense
•Software can be pricey & continued expense.

26. Software used in
Hospitality Industry
•IDS
•Opera
•Fidelio
•Amadeus
•Hotelogix

27. Thank you