問題一覧
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used to provide data and control signals
input device
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helps to input data to the computer
keyboard
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pointing device
mouse
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works more like a photocopy machine
document scanner
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captures a video image of the scene in front of it
web camera
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joystick and microphone are
input device
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what is OMR
optical mark regocnition
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capturing human-marked data from documents forms such as surveys and tests
optical mark regocnition
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receives data from computer, usually for display, projection, or physical reprodution
output device
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creates a visual display for users to view processed data
monitor
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generates a hard copy version of processed data such as documents and photograps
printer
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are attached to computers for the output of sound
speaker
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headset, projector and plotter are
output device
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are the premier way to store data in a computer and portable fashion
flash drives
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are designed either for desktops or laptops and have a storage capacity of up to 700 gigabytes
external hard drives
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are also known as memory cards
smart cards
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also called "remote backup"
online storage
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are often used to store music, text files, photos and other data
rewritable cds
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an american who invented the QWERTY
christopher latham sholes
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used in combination with other keys
shift
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allows access to additional commands and shortcuts
ctrl
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provides access to menu options and alternative functions
alt
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opens the operating system's start menu or application launcher
windows
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cancels an action or closes a program
esc
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moves the cursor to the next predefined position or switches between fields
tab
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toggles between uppercase and lowercase letters
capslock
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confirms an action or moves to the next line
enter
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deletes the character to the left of the cursor
backspace
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captures a screenshot of the entire screen
print screen
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toggles the scrolling behavior of some applications
scroll lock
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pauses or interrupts the current process
pause or break
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helpful botton opens the help screen
help key
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help key is
f1
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allows you to rename the selected file
rename key
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rename key
f2
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helps you find whatever you are looking for
search key
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search key
f3
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closes the active window
close key
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close key
f4
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refreshing the active webpage
refresh key
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refresh key
f5
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allowing you to type in a specific website address
address bar key
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address bar key
f6
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performs a spelling and grammar
spell checker key
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spell checker key
f7
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allows you to boot the system in safe mode
safe mode key
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safe mode key
f8
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activates the send and receive function for your emails
email key
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email key
f9
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accesses the menu bar in any active microsoft programme
menu key
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menu key
f10
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it makes your internet browser full screen
full screen key
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full screen key
f11
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keeps your file saved
save key
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save key
f12
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ctrl + k
hyperlink
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ctrl + h
replace
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ctrl + x
cut
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ctrl + y
redo
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ctrl + z
undo