Chapter 1 Flashcards
What does Computer mean?
A computer is a machine or device that performs
processes, calculations and operations based on
instructions provided by a software or hardware
program. It is designed to execute applications and
provides a variety of solutions by combining
integrated hardware and software components.
made up of multiple parts and components that
facilitate user functionality.
computer
two primary categories of a computer
hardware and software
Physical structure that houses a
computer’s processor, memory, storage, communication
ports and peripheral devices
hardware
Includes operating system (OS) and
software applications
software
three general
categories if computers
supercomputer, main frame computer and personal computer
The fastest, largest, most
powerful and most expensive computer.
supercomputer
This is a little smaller and
less powerful than the supercomputer, but, like the
supercomputer it is also expensive.
mainframe computer
This is the computer that
most people use in their daily lives. This computer is
much smaller, less powerful and less expensive than
the supercomputer and the mainframe computer.
personal computer (pc)
a computer’s electronic and
mechanical parts. also
includes input devices, output devices, system unit,
storage devices and communication devices. Without
these components we would not be able to use the
computer.
Computer Hardware
is any hardware component
that allows you the user to enter data into the computer.
input devices
Six of the most widely used input devices
keyboard, mouse, scanner, microphone, digital camera, pc video camera
any
hardware component that gives
information to the user.
output devices
Three commonly used output devices
monitor, printer, speaker
The computer will not work without it. also
called programs. These are the instructions that tell the
computer what to do and how to do it. The
system software also called the operating system (OS) actually
runs the computer.
Computer Software
The two main categories
of software
system software and application software.
also called the operating system (OS) actually
runs the computer.
system software
controls all the operations of the
computer and its devices. All computers use it and without it, the
application software will not work.
computer software
The most common
OS on a Mac computer
Mac operating system