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is a computing device that works on a
continuous range of values
Analog computer
It operates on digital data such as
numbers.
digital computer
It combines the desirable features of
analog and digital computers. It is
mostly used for automatic operations of
complicated physical processes and
machines. It has the speed of analog and
the accuracy of a digital computer.
Hybrid Computer
-It is a single user computer system
having a moderately powerful
microprocessor.
microcomputer
It provides services to another
computer program
server
It is a multi-user computer system,
capable of supporting hundreds (250)
users simultaneously.
mini computer
It is very large in size and is an
expensive computer capable of
supporting hundreds
main frame
employed for
specialized applications that require
an immense amount of mathematical
calculations (number crunching).
super computers
The term refers to a computer in
which the power supply,
motherboard, and mass storage
devices are stacked on top of each
other in a cabinet.
desktop
An extremely lightweight personal
computer. It uses a variety of
techniques, known as flat-panel
technologies, to produce a
lightweight and non-bulky display
screen.
notebook computer or laptop
A portable computer that is slightly
lighter and smaller than a full-sized
notebook computer.
Subnotebook computer
A portable computer that is small
enough to be held in one’s hand
Handheld computer
Short for personal digital assistant,
a handheld device that combines
computing, telephone/fax, and
networking features.
PDA
are handheld
portable devices along with a touch
screen interface in which users can
perform both activities
(Input/Output) on its LCD screen
Tablet computer
It is a touch screen mobile phone
that is capable of performing various
advanced functions similar to
computers such as installed OS
(operating system),
Smartphone
It is a special kind of computer
primarily used for playing video
games.
Game console
TVs) are
now having their own applications
and interactive features
Modern TV
It is any small technology device
capable of storing and processing
data that will be worn on the body.
Wearable computers
primary pointing device which involves eye and hand coordination
mouse
It uses a rubber ball as its wheels
that make contact inside the unit.
mechanical mouse
It is an advanced computer pointing
device that uses a light-emitting
diode (LED
optical mouse
It uses wireless
technology like Bluetooth or infrared
radio waves.
Wireless mouse
use to enter data to the computer
keyboard
It is a type of port developed by IBM
for connecting a mouse
or keyboard to a PC
Ps2 keyboard
is a computer keyboard designed
with ergonomic considerations
ergonomic keyboard
a data entry typically found on laptop
computers.
Built in keyboard
is a computer keyboard that allows
the user to communicate with
computers, tablets, or laptops with
the help of radio frequency (RF),
infrared (IR) or Bluetooth technology
Wireless keyboard
is a keyboard usually made of soft
silicone that is highly portable
flexible keyboard
enclosure for all the other main interior component
System Unit
It is also called a computer chassi
Case
printed circuit board (PCB)
containing the principal
components of a computer or other
device.
Motherboard
is the brain of the computer
microprocessor
It holds the instructions which will
be processed by the computer
processor.
RAM
It is the mechanism that controls
the reading and writing which
furnishes the largest amount of data
storage for PCs. It stores data such
as videos, pictures, documents, etc
HDD
It stores and reads files from disc
through laser beam technology
Optical Disk Drive
It delivers stable and reliable power
to your PC.
power supply unit
to enhance the quality of their specific function
Expansion card
It improves display of data into
attractive and colorful images on
the screen.
Video Card
It converts digital data to analog
sound waves you can hear.
Sound card
It connects your computer to a local
data network or the Internet.
Network Interface Card