Quiz 3 Flashcards
is a combination of machines, people, and processes that for a set of
inputs produces a defined set of outputs
data processing system
A data processing system may involve some combination of:
- conversion
- validation
- sorting
- summarization
- aggregation
- analysis
- reporting
converting data to another form or Language.
conversion
Ensuring that supplied data is “clean, correct and useful.”
validation
“arranging items in some sequence and/or in different sets.”
sorting
reducing detail data to its main points.
summarization
combining multiple pieces of data.
aggregation
the “collection, organization, analysis, interpretation and presentation of data.”
analysis
list detail or summary data or computed information
reporting
refers to the transforming raw data into meaningful output.
data processing
stages of data processing cycle
- input stage
- processing stage
- output stage
- storage stage
input stage
- data collection
- data capture
- encoding
- data transmission
- data communications
processing stage
- performing instructions
- transforming raw data into information
output stage
- decoding
- presenting data to user
storage stage
- storing data
- retrieve data
data processing methods
- manual data processing
- mechanical data processing
- electronic data processing
data is processed manually without using any machine or tool to
get required results; all the calculations and logical operations are performed
manually on the data
manual data processing
data is processed by using different devices like
typewriters, mechanical printers or other mechanical devices; These are faster than the manual mode but still forms
the early stages of data processing
mechanical data processing
is the modern technique to process data; The data is
processed through computer; Data and set of instructions are given to the computer as input and the
computer automatically processes the data according to the given set of instructions.
electronic data processing
types of data processing
- batch processing
- online processing
- real-time processing
- distributed processing
- multi-processing
- time sharing
is a method where the information to be organized is sorted into groups to allow
for efficient and sequential processing
batch processing
utilizes Internet connections and equipment directly attached to a computer.
This allows for the data stored in one place and being used at altogether different place
online processing
has the ability to respond almost immediately to various signals in order to acquire
and process information
real-time processing
commonly utilized by remote workstations connected to one big central workstation
or server; All the end machines run on a fixed
software located at a particular place and make use of exactly same information and sets of instruction.
distributed processing