This PPT is related to Health Informatics for BSc NURSING First year as per revised syllabus. Hope there are no contents related to this subject as it is a new introduced subject to the nursing course. I 'm Vineetha Abraham Assit.Lecturer in nursing from Mangalore.

1. UNIT – I
INTRODUCTION TO
COMPUTER
APPLICATION FOR
PATIENT CARE
DELIVERY SYSTEM &
NURSING PRACTICE PARTS OF
COMPUTER

2. PARTS OF COMPUTER

3. Parts of Computer
 Computer is made up of different physical
parts & programmed with different languages
to carry out a set of algorithms and arithmetic
instructions.
 Each part has an important role to play and
helps perform a specific task.
 Computer parts are generally divided into
internal and external parts.

4. Two parts of Computer
 Internal Parts:
Refer to built-in
components & are placed
inside the computer case
such as motherboard, CPU,
RAM, etc.
 External Parts:
Refer to components that
are attached to the
computer using one of the
ports linked to the
motherboard.
Eg: Mouse, Keyboard,
speakers, webcam, etc.

5. 1. Monitor
 Also called the visual display unit, it is one of the
essential parts of a computer system.
 It is made of glass, circuitry, adjustment buttons,
power supplies, etc., all enclosed within a casing.
 The monitor is connected to a computer and displays
output like text, image or video on the screen.
 LED ( Light- emitting diode) and LCD (Liquid crystal
display) monitors are most prevalent these days.

6. 2. Keyboard
 It is one of the primary input devices which helps to
interact with the computer system.
 A keyboard is one of the ways to communicate with a
computer.
 The keyboard’s layout is similar to that of a typewriter.
It has a set of keys such as alphabetical keys,
character keys, functional keys, arrow keys and
control keys.
 When we press a key on the keyboard, the computer
receives input from the keyboard.
 There are two types of keyboards: Mechanical &
Membrane type.

7. 3. Mouse
 Is an input device which helps to communicate with the
computer system.
 It allows the user to move a pointer displayed on the
monitor.
 It can be wired or wireless. A typical mouse usually has
three buttons: right, left and middle roller button.
 There are two types of mice (plural form of mouse):
Mechanical and optic.
 The mechanical mouse uses a ball and roller, the optical
mouse use laser technology to track the movements of
the cursor and allows for accurate precision and smooth
movement.

8. 4.Computer Case
 It is a special box which holds all the internal
components of a computer.
 It includes motherboard, central processing unit, power
supply, drives, memory & writing.
 The front of the computer case usually provides access
to the power on / off button, CD/DVD drives and some
ports such as USB, audio jack, etc.
 On the back are sockets for connecting a monitor,
power cord, etc.

9. 5. Motherboard
 Also called as the main board, this circuit board holds
all the different electronic components and peripherals
of the computer system.
 These are interconnected so as to allow
communication with each other and functioning of the
computer.
 The input & output devices are plugged into the
motherboard for function.
 It consists of CPU, RAM, ROM, sound card, video
card, network card, ports for input, output and storage
devices, etc.

10. 6. CPU
 Central Processing Unit – is one of the core components of
computer system.
 Is also known as the brain of the computer, processor, central
processor, or microprocessor.
 No action can take place without its permission and execution.
 It communicates with all other components of the computer.
 It has three parts: Memory unit, control unit, arithmetic & logic
Unit.
 All these components help in the efficient working and processing of
the data.

11. 7. Graphics processing Unit (GPU)
 Also called as Video adaptor, Video card and display
card help to generate high end visuals.
 This electronic circuit displays high quality images &
graphics by performing rapid mathematical
calculations..
 It helps to process 2D data and 3D data.
 Higher the quality of the graphic card , higher is the
quality of visual effects on the computer screen.

12. 8. Fan
 It is an internal part of a computer system that helps to
keep the computer & its components cool by circulating
air.
 This prevents overheating & physical damage to the
computer thereby extending the life of the computer.

13. 9. Memory
 Memory units typically store data and instructions for core
system files and configuration.
 The internal memory of a computer is mainly of two types: RAM
& ROM
 Random access memory (RAM)- is a basic computer part
which serves as a computer’s primary memory for temporary
storing of current data or on-going data. It is also known as
volatile memory as it gets erased every time the computer
restarts. It has a fast read/write speed and can be accessed
quickly by the computer.
 Read-Only Memory(ROM) – it is a non-volatile storage medium
that stores essential computer data. It keeps the stored data
even after the power is turned off.

14. 10. Storage
 Computers needs to store all the data and they either
have a hard disk drive (HDD) or a solid state drive
(SDD) for this purpose.
 These storage devices are used to store long-term
data.
 The data saved in these devices are available until it is
deleted.
 HDD are disks that store data which is read by a
mechanical arm.
 SSD are like SIM card faster than hard drives.

15. 11. Speakers
 Speakers are optional parts of a computer.
 They can be connected to a computer to get audio
output while listening to a class.
 Speakers are attached to the sound card and convert
the electromagnetic waves into audible audio waves.
 These speakers also have amplifiers that enable us to
adjust the volume level of sound output.
 Many monitors and laptop computers come with built -
in speakers.

16. 12. Mic
 The mic or microphone is another optional part of the
computer.
 It gives voice input to the computer system.
 It perceives sounds from the surroundings and converts
these sounds into electronic signals. These signals are
further converted into digital forms to be stored on the
computer.
 Mic is needed when we need to insert audio into our
presentation, do voice conferencing, recording,
broadcasting, giving voice command to the computer,
etc.

17. 13. Webcam
 This is also an optional part of the computer
system mainly used to capture images and
videos and send them in digital form to a
computer.
 They must be connected to the computer for
proper functioning.
 Webcam helps to make videos, do video
conferencing, live broadcasting, etc.

18. Other optional parts of a computer system are CD, DVD
drive, uninterruptible power supply device, printer, scanner,
etc.
 A computer user can control it by input devices such as
keyboard, mouse, touch screen and also with voice
commands or hand gestures, etc.

19. FEATURES OF COMPUTER
 Two Principal characteristics of a Computer are:
1. It responds to a specific set of instructions in a well-
defined manner.
2. It can execute a pre-recorded list of instructions (a
program).
- It has the ability to accept data, process it, and then
produce outputs.
- It can store data in appropriate storage devices and
retrieve whenever necessary.
- They are designed to execute applications and provide a
variety of solutions by combining integrated hardware and
software components.

20. Thank you