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utilities
software programs that perform specific tasks together with the operating system kernel
virtualization
The software utility that allows a single physical computer to operate as though it were two or more separate computer systems.
Unix
open-source operating system kernel developed by Google that is used in many cell phones
most important resource for development
people
Application Programs
Devices that translate processed data in to information and presents it in human-readable format.
Secondary
this type of storage retains data even if the power is turned off.
ARPANET
network that launched the internet as we know it today
Protocols
The rules for exchanging data between computers.
App Store
A website that provides access to specific applications is known as:
site content is created in
html
websites are accessed with
http
UI/UX Developer
someone who creates the graphical user interface for application software
Firmware, BIOS
The generic name of the software embedded in "Internet-of-Things" devices, like Ring doorbells, smart speakers, etc.
cpu chip with more than one physical cpu embedded in
multicore
RAM
Memory that loses it's contents when power is turned off
slots
The name of the location on a computer systemboard where additional circuit boards can be installed are called
cache
memory that is embedded into a cpu chip, which improves processing speed and acts as a fast holding area between cpu and ram
ports
Various locations on a computer system unit that allows external devices to be connected to the computer
character encoding
The standard of defining unique sequences of bits to represent letters, numerals and other symbols in a digital computer system
System Bus
The pathway between the CPU and RAM memory
Flash memory
memory used in USB memory sticks
control unit and arithmetic/logic unit
two basic functional components inside a CPU chip
MICR
Device used by banks to automatically read numbers on checks
routers
devices are the primary components that allow traffic to flow between different networks all around the globe.
codecs, transceivers, and modems..
convert data
uefi
standard for booting up computers
zombie bots
Infected computers that can be controlled remotely are called:
Net-neutrality
the practice of Internet Service Provider's handling internet traffic equally for all customers, regardless of who are the customers.
5 basic functional areas in company
accounting, marketing, human resources, production, and research and development
information worker categories
data and knowledge workers
DSS - Decision Support System
An information system that allowing analysis of unanticipated situations using data and decision models
TPS - Transaction Processing System
Tracks routine operations and records events in databases on a daily basis.
MIS - Management Information System
Produces standardized reports (periodic, exception and demand) using data from the TPS
ESS - Executive Support System
presents summary information in a flexible, graphical format and contains info on industry competitors
batch processing
computer compiles the information over time and then presents it all at once later
real time processing
each transaction occur at the same time that it is started
6 phases of systems analysis and design process
preliminary investigation, analysis, design, development, implementation, maintenance
job title for preliminary investigation
business system analyst
Pseudocode
is a written outline of how a program should operate and process data, and it often looks like a programming language.
If-then-else statements
The logic structure that directs control based on a "condition".
Interpreting
The process of converting a procedural language one statement at a time into machine readable code
Relational data structure
where the data elements are stored in different tables that have one or more common "key" fields.
Data Cube
Data Cube
Key Field
The distinctive field found in each record of a database.
DBMS Engine
The bridge between the logical and physical views of the data.
Data
Facts or observations about people, places, things, events, etc.
systems maintenance
Which phase of Systems Analysis & Design process tends to incur the most cost over the lifetime of using the application?
person responsible for preliminary investigation
systems or business analyst
Which phase of Systems Analysis & Design process tends to incur the most cost?
systems maintenance
preliminary investigation
This phase is concerned with economic, technical and operational feasibility.
machine language
The computer language that consists of 1's & 0's
compiler
converts all source code into machine code all at one time
Interpreter
will convert one line of source code at a time
Field
a group of related characters in a database
two documents created during systems analysis
organizational charts and system flowcharts