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67 terms

MIS Exam 1

STUDY
PLAY
system
a set of components that interact to achieve a common goal
information system
a collection of hardware, software, data, people, and procedures that work together to produce quality information
system development
a set of activities used to build an information system
phases
system development activities are often grouped into larger categories called _____
system development life cycle
the collection of phases
planning analysis design implementation operation, support, and security
5 phases of SDLC
users
anyone for whom the system is being built
systems analyst/developer
responsible for designing and developing an information system
steering committee
a decision-making body in an organization
project team
consists of users, analyst, IT professionals who work on the system development project
project leader
manages and controls the budget an schedule of the project
project manager
controls the activities during system development
feasibility
a measure of how suitable the development of a system will be to the organization
project request
in large organizations users right a formal request for a new or modified information system
planning phase
begins when the steering committee receives a project request
analysis phase
conduct a preliminary investigation and perform detailed analysis
IT consultant
a professional who is hired based on computer expertise, including service and advice
prototype
a working model of the proposed system
direct conversion
the user stops using the old system and begins using the new system on a certain date
parallel conversion
consists of running the old system alongside the new system for a specified time
phased conversion
each location converts at a separate time
pilot conversion
only one location in the organization uses the new system
motherboard
the main circuit board of the system unit; electronic components attach to it
central processing unit
the brain of the computer
system clock
controls the timing of all computer operations
clock speed
the pace of the system clock- measured in GHZ
machine cycle fetch decode execute store
_________ is for every instruction, a processor repeats a set of four basic operations, which comprise a machine cycle _____, _____, ____, and _____
bus
allows the various devices both inside and attached to the system unit to communicate with each other; path bits take on motherboard
computer literacy
having a current knowledge and understanding of computers and their uses
hardware
the electric, electronic and mechanical components of a computer
input device
any hardware component that allows you to enter data and instructions into a computer
output device
any hardware component that conveys information to one or more people
memory
electronic components that store instructions waiting to be executed and data needed by those instructions
storage device
records and retrieves items to and from storage media
software
a series of related instructions, organized for a common purpose, that tells the computer what tasks to perform and how to perform them
GUI
visual images such a icons; what you are interacting with
system software
programs that control or maintain the operations of the computer and its devices
operating system utility programs
2 types of system software
application software
consists of programs designed to make users more productive and/or assist them with personal tasks
operating system
a set of programs that coordinates all the activities among computer hardware devices
utility program
allows a user to perform maintenance-type tasks usually related to managing a computer, its devices, or its programs
servers
small cabinet; controls access to the hardware software and other resources on a network
mainframes
partial room to a full room of equipment. large expensive powerful computer that can handle hundreds or thousands of connected users simultaneously
supercomputers
full room of equipment; the fastest most powerful computer
embedded computers
miniature; special purpose computer that functions as a component in a larger product
office user
a company with fewer than 50 employees; or the self-employed who work from home
home user
use computers at home
mobile user
use a computer on a mobile device while away form home, work or school
power user
user who requires the capabilities of a powerful desktop computer, called a workstation
enterprise user
person in a large company with hundreds or thousands of employees
internet world wide web
the _______ is a worldwide collection of networks that links millions of businesses, govt agencies, educational institutions, and individuals; _____ is a widely used service on the internet, consists of a worldwide collection of electronic documents
portal
a website that offers a variety of internet services from a single, convenient location
search engine
a program that finds web sites, web pages, images, videos, news maps
e-commerce
a business transaction that occurs over an electronic network such as the internet
ip address
a number that uniquely identifies each computer or device connected to the internet
netiquette
the code for acceptable behaviors users should follow while on the internet
top level domain
.com
domain name
www.google.com
url
http://www.google.com
system unit
a case that contains electronic components of the computers used to process data
RAM ROM cache
____ main memory; ___ memory chips store permanent data and instructions; ______ stores frequently used data and instructions
volatile nonvolatile
when the computer's power is turned off, ________ memory loses its content; while _______ does not.
system bus frontside bus
which bus connects the cpu to the RAM
ROM
the boot up instructions are in which memory?
ASC11 unicode
the _____ understands 256 symbols while the ____ understands 65000
Cache ROM
____ is volatile and ___ is nonvolatile
gigahertz gigabytes
speed is measured in ______ and memory is measured in _____