UNIT 2- COMP SOF AND HAR Flashcards
is all of the physical components of a computer.
Hardware
is a machine that uses electronic components
and instructions to the components to perform calculations,
repetitive and complex procedures, process text, and
manipulate data and signals.
computer
A square or rectangular board with circuits into which are
pugged the main electronics of the computer.
motherboard.
Computer’s Architecture: attached to the motherboard
Electronic circuits
Microchips
Processors
Random access memory (RAM)
Read-only-memory (ROM)
Graphic and sound cards
a thin, flat sheet made if a firm, nonconducting
material on which the internal components -
printed circuits, chips, slots, and so in - of the
computer are mounted.
motherboard
what is the motherboard made out of?
made up of dielectric or
nonconducting plastic material.
this is made up of dielectric or
nonconducting plastic material.
motherboard
what do you call the motherboard’s storage media?
memory
what are the three types of memory
ROM
RAM
CACHE
Form of permanent storage in the computer.
- It carries instructions that allow the computer
to be booted, and other essential machine
instructions.
READ-ONLY MEMORY
refers to working memory used for primary
storage.
- It is used as temporary storage.
RANDOM ACCESS MEMORY
RANDOM ACCESS MEMORY is also known as ___
main memory
this type of memory can be accessed used, changed, and written on repeatedly. it is volatile because it unloads when the computer is turned off
RANDOM ACCESS MEMORY
smaller form of RAM
CACHE
what is the purpose of cache?
speed up processing by storing frequently called items in a small, rapid access memory location
___ allow the computer to receive information from the outside world
input devices
what are the most common type of input devices
keyboard and mouse
electrodes, pulse oxi, computerized imaging devices are examples of what?
input devices
Allow the computer to report its results to the
external world. Any equipment that translates the
computer information into something readable by
people or other machines. It can be in the form if
text, data files, sound, graphics, or signals to other
devices.
OUTPUT DEVICES
WHAT ARE the most common output devices
monitor and printer
heart monitors, volumetric infusion are examples of
output devices (medical device)
includes the main memory but also external
devices on which programs and data are stored.
Storage
most common storage device
hard drive