Input Devices Any hardware component that allows user to enter data and instructions into a computer.
Any hardware component that allows user to
enter data and instructions into a computer.
A touch-sensitive display device.
can interact with touch screens by
touching area of the screens
used to perform tasks such
as making on-screen selection, or entering
Designed specifically for playing games on the
Transmits data to the system unit using wireless
technology, such as bluetooth, or infrared.
designed for comfort and to reduce the chance of
wrist and hands injuries.
contains keys that users can
press to enter data and instructions into a
– Pointing device that fits in a palm, and used to
control the pointer by moving it along a flat
A stationary pointing device with a ball on its top
a small, flat, rectangular pointing device that is
sensitive to pressure and motion.
allows user to control a
pointer on the screen
A small metal or plastic device that looks like a
tiny ink pen but uses pressure instead of ink.
Slightly larger than a stylus, pressure sensitive,
and provide more functionality such as electronic
erasers and programmable buttons.
used to write, draw and tap on the
flat surface such as screen of mobile phone,
tablet or signature capture pad
Scanning mechanism passes under the item to be
scanned, which is placed on the glass surface.
Pen or handheld
Move pen over text, then transfer data into
– Item to be scanned is pulled into stationary
– Item to be scanned rotates around stationary
A light-sensing input device that reads printed
text and graphics and then translates the
results into the form the computer can
uses a light source to read
characters, marks, and codes and then converts
them into digital data that computer can process
OCR reader – reads printed or handwritten
OMR reader – reads hand-drawn marks such as a
small circle or rectangle.
Bar code reader
Uses laser beams to read bar codes by using light
patterns that pass through the bar code lines.
Uses radio signal to read information on RFID tag
which is placed in or attached to an object, an
animal, or a person
Magnetic stripe card reader
Reads the magnetic stripe on the back of credit
card, student card, bank card or other similar
Reads text printed with magnetized ink (such as
characters pre-printed on a cheque), and converts
into the form the computer can process.
Devices that can capture data directly from a
source document into the computer.
a device that converts sound
into an electrical signal
process of entering any
sound into the computer such as speech,
music and sound effects
Digital video camera
A device that records video as digital signals,
which can be transferred into a computer by
connecting the video device to the computer
A type of digital camera attached to or built in a
computer that enables user to capture video and
still images and share them through the Internet
the process of capturing fullmotion
images and storing them on a
computer’s storage medium
Captures curves and indentations of a fingerprint
Face recognition system
Captures a live face image and compares it with a
Hand geometry system
Measures the shape and size of a person’s hand
Voice verification system
– Compares a person’s live speech with stored voice
Signature verification system
Recognizes the shape of handwritten signature, as
well as measures the pressure and the motion
used to write the signature
Iris recognition system
Reads patterns in the iris of the eye.
Scans patterns of blood vessel in the back of the
the technology of authenticating
a person’s identity by verifying a personal