The document discusses various computer peripherals including input devices like keyboards and mice, output devices like monitors and printers, storage devices like hard drives and USB drives, and communication devices like modems, routers, smartphones, and Bluetooth devices. It describes the functions of these different peripheral types and provides examples of specific peripherals like keyboards, scanners, speakers, hard drives, Wi-Fi routers, and Bluetooth speakers.

1. 1
B.J.P.S Samiti’s
M.V.HERWADKAR ENGLISH MEDIUM HIGH
SCHOOL
COMPUTER PERIPHERALS
Shivani Karekar
Staff Name

2. Computer
Peripherals
• -

3. •Computer is a versatile machine that can
process data and provides us with important
information.
• Computer Peripherals:-Computer is made
up of several input and output devices that
work together are known as computer
peripherals.

4. HARDWARE
•Parts that you can touch and feel
•eg. Monitor, keyboard, mouse, printer
etc

5. SOFTWARE
 Parts that you can not touch and feel
 A set of instructions
 eg. Paint, MS-Word, powerpoint, VLC
media, games etc

7. IPO CYCLE
• IPO refer to Input, Output, and
Process.
• It is the information processing cycle in
which the user enters an input which is
processed to produce an output.

12. Input Devices
•KEYBOARD:
•Keyboard has small keys.
Alphabetic keys,
numeric keys, navigation
keys that help you to
enter data.
•QWERTY: first row
letters .( Standard
keyboard )
 MOUSE
It is a hand held pointing
device that controls the
cursor :
1. Move the cursor
2. Select
3. Open and execute
4. Drag and drop
5. Scroll
6. Hover

13. Scanner
•It scan documents into the
digital format.
•Flatbed, sheet fed,
handheld, drum scanner are
commonly used scanners.

14. Other input devices
•Barcode reader : Reads and prints the
details of the product from its list.
•Gamepad or Joystick : used to play games
•Stylus : a pen like instrument used with
touch screen device. Hand heat converted
into electrical energy.

15. OUTPUT DEVICES
•Device that display information or
output are called output devices.
• Monitor : it known as Video display
terminal or Unit (VDT) .
• Based on the technology used
monitors are of three types :
•CRT Monitors
• LCD Monitors
•LED Monitors

16. Printer
•Printer gives a printed output of what you
see on the monitor.
•It generate hard copy of the electronic
data.
•World’s largest printer is known as
Infinitus which is used to printing
backdrops that are used by TV, theatre.
•Printer types :

18. SPEAKERS
• It convert electronic data into sound. Speakers are
usually available in pairs.
• Other output devices :

19. Storage devices
• A storage device refers to a computing
hardware used to store information permanently
or temporarily.
• The device can be external or internal to a
computer, server, and other computing systems.
Storage devices are also known as storage
medias or storage medium.
• Types of storage devices are:
1. Primary Storage Devices
2. Secondary Storage Devices

20. Primary Storage devices
• Primary Storage devices: A primary storage
device is a medium that holds memory for short
periods of time while a computer is running.

21. Non volatile memory is permanent memory
in which nothing data erase when system is
turn off.
RAM – Random access memory (volatile
memory)
ROM – Read Only Memory ( non volatile
memory)

22. Secondary Memory/Storage Devices
• Secondary Memory is also called “storage
device” and “auxiliary memory“, “external
memory“. Secondary storage devices are
volatile in nature, it means that data does not
discard while power turn-off, in which all data
store for long time. Secondary memory has the
speed of access of data is very slow compare to
primary memory, and cheaper as well.
• Examples:

23. Difference Between Primary and
Secondary Memory
Primary Memory
• Primary Memory can be volatile
and non volatile.
• Primary memory is also known as
internal memory.
• Primary memory has two
categories like as RAM and ROM.
• Primary memory is more costly to
secondary memory.
• All data goes to loss while power is
turn off.
• Primary memory is faster than to
secondary memory.
Secondary Memory
• Secondary Memory only has non
volatile in nature.
• Secondary memory is called also
Backup or Auxiliary memory.
• Secondary memory has four categories
like as Magnetic Storage, Optical
Storage, Flash storage, and Online
Cloud System.
• Secondary memory is cheaper to primary
memory.
• All data can be access anytime either
power is on or not.
• Secondary memory is slow compare to
primary memory

24. Communication Devices
A communications device is any type of hardware
capable of transmitting data, instructions, and
information between a sending device and a receiving
device.

26. MODEM
For communications channels that use digital signals
(such as cable television lines), the modem transfers
the digital signals between the computer and the
communications channel.
How a Modem Works ?

27. The modem receives information from your ISP
through the phone lines, optical fiber, or coaxial
cable in your home (depending on your service
provider) and converts it into a digital signal.

28. Dial Up Modem
•The primary job of
a dial-up modem is to
take digital information
and convert it to an
analog signal that can
travel over a normal
telephone phone line.
Cable Modem
A cable modem is
a peripheral device used to
connect to the Internet. It
operates over coax cable
TV lines and provides high-
speed Internet access.

29. Smartphones
o Sending and receiving emails, text, photographs and
multimedia messages.
o Registering contacts.
o calculator, currency, alarm, etc. functions.
o Browsing the Internet using a mobile browser.
o Playing games.
oVideo chat.
o point of sale terminal when paying for goods or
services.

30. • A wireless router connects directly to a modem by a
cable. This allows it to receive information from — and
transmit information to — the internet. The router then
creates and communicates with your home Wi-Fi
network using built-in antennas.
• It allows computers, smart phones and other devices to
connect to the internet within specific range.
• It can transmit the wireless signals.
Wi – Fi Router

31. Bluetooth Devices
• A Bluetooth® device works by using radio waves
instead of wires or cables to connect with your cell
phone, smartphone or computer. Bluetooth is a
wireless short-range communications
technology standard found in millions of products we
use every day – including headsets, smartphones,
laptops and portable speakers.
Bluetooth Speaker

32.  Hardware and software
 Input , Output, Storage Devices
 Communication Devices
 Modem
 Router
 Smartphone
 Bluetooth Devices