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Home users can transfer videos to their computers and then use video editing software to edit the video

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Connects other computers through telephone lines, cable television lines or other transmission media

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Connects other computers and peripherals

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Connects speaker or a microphone

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Connects to USB devices

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Connects a monitor

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Connects the system unit to a musical instrument, such as an electronic keyboard

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Allows viewing of television channels on the monitor

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Connects a television

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A storage medium / media is the physicalmaterial on which a computer keeps data,instructions, and information

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A storage medium / media is the physicalmaterial on which a computer keeps data,instructions, and information

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● A storage device is the computer hardware that records and/or
retrieves items to and from storage media
● It’s function is to store data and programs when they are not
being processed
● Stores data permanently
● Available in the form of hard disk, CD, USB drive. etc

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Reading is the process of
transferring items from a storage
medium into memory

Writing is the process of
transferring items from memory to
a storage medium

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● Magnetic Storage
● Optical Storage
● Flash Memory

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- Uses different patterns of magnetization
on a magnetically coated surface to store
information
- Eg :
Hard disk : A hard disk contains one or more inflexible,
circular platters that use magnetic particles to
store data, instructions and information.
Floppy disk:

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– Stores information in deformities on the surface of
a circular disc and reads this information by
illuminating the surface with a laser diode and
observing the reflection.
– Types of optical disc are:
» Compact Disc (CD)
» Digital Video Disc
» Blu-ray Disc (BD)

(DVD)

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A CD-ROM can be read from but not written to

• Read from a CD-ROM drive or CD-ROM player

A CD-R is a multi session optical disc
on
users can write, but not erase

which

A CD-RW is an erasable multisession

• Must have a CD-RW drive

disc

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A DVD-ROM is a high-capacity optical disc on
which users can read but not write or erase

• Requires a DVD-ROM drive

A Blu-ray Disc-ROM (BD-ROM)
capacity of 100 GB

has a storage

DVD-RW, DVD+RW, and DVD+RAM are high-
capacity rewritable DVD formats

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• Flash memory chips are a type of solid state
media and contain no moving parts
Examples of flash
» Solid state drives
» Memory card
– memory storage are:

» USB flash drives

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Solid state drives (SSDs) have several
over magnetic hard disks:

advantages

Generate less heat and
consume less power

Faster access time Faster transfer rates Last longer

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A memory card is a removable flash memory
device that you insert and remove from a slot in a
computer,mobile device, or card reader/writer

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USB flash
computer

drives plug into a USB port on a
or mobile device

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MEMORY (RAM):
Hold data temporarily.
Hold programmable data , instruction and
processing data.
Memory are located on the motherboard.
Data in the memory will be lost when the power is turn off.

STORAGE:
Hold data permanently.
Hold data and information when they are not being processed.
Storage are located outside the motherboard.
Data in the storage will not be lost when the power is turn off.

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Any hardware components allow users to enter data and instructions into a computer

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- keyboard
-pointing device
-digitizer
-microphone
-webcam
-touchscreen
-joystick
-digital camera
-reading devices
-voice input
-video input
-biometric input
-game controllers

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an input device that contains key which user press to enter data and instructions into a computer
METHOD: keypress

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A pointing device is an input device that allows a user to control a small symbol on screen called pointer on screen.
METHOD; select text, icons, links

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A touch screen touch-sensitive display device
METHOD: interact, touching

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With pen input, you touch a stylus or digital pen on a flat surface to write, draw or make selections
METHOD: touch

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Is an input device that of entering any sound into the computer
METHOD: entering any sound

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Is an input device that capturing full-motion images and storing them on a computer's storage medium by using a digital signals
METHODS: capturing full-motion

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Biometrics authenticates a person's identity berifying a personal characteristic
METHOD: Verify

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Mobile devices that allows users to take pictures and store them digitally
METHOD: take picture

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Type of digital video camera that enables a user to capture video and still images
METHOD: capture

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Allows to speak into the computer
METHOD: speak

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Video games and computer games use a game controller as the input device that directs movements and actions

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Any type of hardware components that convey information to one or many people.

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-display device ( monitor)
-printer
-voice output
-data projectors
-interactive whiteboard
-tactile output
-force-feedback game controllers

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A display device visually conveys text, graphics and video information.
Form of output: text, graphic, animation and video

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An output device that convey information to the users in the format of text and graphics on a physical medium
Form of output : landscape, potrait orientation

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That convey information to user in the form of music, speech and other sounds.
Form of output: audio, music

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An output device that takes the text and images displaying on a screen and projects them on a fingerscreen.
Form of output: text and image, video displaying on a computer.