computers Flashcards
what are the 4 basic computer processes
input, process, storage, and output
what are some examples of input devices
keyboard, mic, mouse, scanner
what are some examples of output devices
CDs, DVDs, monitor, printer
what is the cpu and its function
it is the central processing unit/ acts as computers brain
what is SSD stand for and its function
solid state drive/ the most common type of hardware for storage and is also long lasting
Sata
used to connect hard drives
what does RAM stand for and what is its function
Random accesses memory/ stores short term memory in the CPU
what is ROM and what is its function
a computer storage that can only be read and not written
define cold boot
turning a computer on
define warm boot
restarting a computer
what does the computer case act as
the skin of the computer
what does the mother bpoard act as
the spinal cord of the computer
what does the buses( binary usage system) act as
they act as the nerves
what does the monitor act as
the eyes
what does the graphic card act as
the retina
what does GPU stand for
graphic processing unit
what do the speakers, headphones, and earphones act as
the ears
what does the 3,5 min cable/ quarter cable act as
the ear canal
what does the modem act as
mouth
what is the DSL
(digital subscriber line) is a modem line the uses telephone lines to transport data
how does the fiber transport data
through light pulses through glass
what does the Ethernet 6 cable act as
teh vocal cords
what does the power act as
the aorta
what does the heat sink/or fan act as
the sweat glands
what are transiters
they are the building block of the computer/ can be used to represent words, pictures or numbers/
what code does transiters use
binary
what is each 1 and 0 in binary code called
a bit
how much transistors does a computers hard ware contain
it contains billions to process info faster
what is software
a list of instructions telling transmitters what to do
to work all computers need what
processes, memory, input devices, and output devices
where is all hard ware connected through
the mother board
what do the metal pathways on the mother board do
the wire hardware to one big circuit
what is the operating system
helps master program the whole computer/manages interactions between hard ware and software
what do computers uses to send electrical signals in binary code
switches
what does one mean in binary code
on
hat does zero mean in binary code
off
what is the most common type of mouse
mechanical or ball mouse
what happens when you move the mouse
the ball on the bottom transfers movement to slotted wheels
what does each wheel in a ball mouse have
it has a light emitting diode (LED) and a light receiver called a photodiode
what does the LED shoot across the wheels to the photodiode
light
what does the flashing light from the LED to the photodiode cause
it causes pulsing electrical signals that transfer to your computer
what does the computer see the pulses of light from the LED as
a pair of coordinates
what year was the optical mouse released
in 1999
what do optiocal mice have less of
they had less moving parts so less dirt got on sensitive areas
in a ink jet printer, the futher the dots are apart means what
the lighter the image
what 4 color does a printer use to add color
cyan, magenta, black, and yellow
how are laser jet computers and ink jet computer similar
they both get signals from the computer
