Computer Hardware Flashcards
all of the physical components of a
computer.
Computer hardware
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
composes the computer’s architecture, and includes the electronic circuits, microchips,
processors, random access memory (RAM), read-only memory (ROM), and graphic and sound cards.
basic hardware
square or rectangular board with circuits
into which are plugged the main electronics of the computer.
motherboard
enabled surgeons to insert endoscopy tools that allow for both visualization and precise removal of diseased tissues, leaving healthy tissues minimally damaged and the patient unscarred
Computer-enhanced surgical instruments
now being used to reduce the impact of distance and location on the accessibility and availability of healthcare.
Telemedicine
thin, flat sheet made of a firm, nonconducting material on which the internal components—printed circuits, chips, slots, and so on—of the computer are mounted.
Motherboard
made of a dielectric or non-conducting
plastic material.
Motherboard
the microchips (including the central processing unit [CPU]), and the wiring, and slots for adding components.
Motherboard
electronic storage devices or chips on the motherboard of a computer.
Memory
can be changed by the factory, but effectively, the programs are permanently
wired into the memory.
Read-Only Memory
refers to working memory used for primary storage. It is used as temporary storage. Also known as main memory,
Random Access Memory
can be accessed, used, changed, and written on
repeatedly.
Random Access Memory
called volatile memory.
Random Access Memory
smaller form of RAM.
Cache
Its purpose is to speed up processing by storing frequently called items in a small, rapid access memory location.
Cache
are wired to a controller that is plugged into the slots or circuit boards of the computer. Some devices can
serve as both input and output devices—for example, the hard drive in which most of the programs are stored receive and store information as well as
send their programs to the computer.
Input and Output Devices
These devices allow the computer to receive information from the outside world.
Input devices
most common input devices
keyboard and mouse.
commonly seen on nursing workstations
touch screen, light pen, voice, and
scanner.
both an input and output device combined.
touch screen
device attached to a computer that has special software that allows the computer to sense
light pen
device placed on a patient’s finger uses light waves to detect impulses that are sent to a computer and then interpreted as oxygen levels in the blood.
Oxymetry
These devices allow the computer to report its results to the external world.
Output Devices