CDP Lesson 1

Commercial Data Processing is concerned with the large amount of data the companies need to store and process

We need it because of the

Large Volume of Documents
The high speed of processing required
The high speed of access required and
because it does repetitive tasks

Advantages are ...
Single Entry Multiple Use
Orders can be processed quicker than manually
it is easy to search, sort and update information
Computers have in built error checks to stop mistakes

Robots ...

5 parts of the Robot Arm
Waist
Shoulder
Elbow
Wrist
end effector (tool!)

Tools it uses
Spray Paint
Suction cup
welding bit
gripper
screw driver

Two types of Robot

Mobile - can move around
Three types of guidance for these
Magnetic - follows buried metal wires, if you want to change the layout you need to dig it all up
Laser -
Light - follows a painted white line by reflecting light - line could be affected by dirt etc!

Stationary - stay in the one place

Automated Systems

Automated Systems
What are Automated Systems
Humans provide the input
Machine/Robot/system carries out the process
Provides the output

Auto Sys in the home

* washing machine
* cameras
* sky +
* stereos
* microwaves
* dishwashers
* tumble dryers

Auto Sys in industry
* car manufacture
* coca cola factory
* irn bru factory
* tunnocks
* wool factory

Reasons why we use Auto Sys
* they are re-programmable
* faster than humans
* can work longer, 24/7
* do boring jobs
* more accurate than humans
* can do dangerous jobs

Databases

Searching!

Simple Search - search on one field

Complex Search - search on two or more fields

Simple Search

Simple search the forename field for "Brad" - finds everyone called Brad

Complex Search

Complex search on the forename field for "Reece" and the looks field for ">10" - would find Reece Mourning! : )

Databases!

There are three parts that make up a Database (Largest to Smallest they are ...)

Data File - the all the information, the whole database

Records - is all the information gathered on one person/subject

Fields - store one individual piece of information

Example Field Types

* Date/Time
* Numeric
* Text
* Graphic

Graphics Stuff

Crop
- when you cut out a specific bit from the image, removing unwanted parts

Scale
- increasing or decreasing the size keeping it in proportion without removing any parts

Rotate
- turning an image by an angle

Ware!!!!!!!!

The three categories of Software are ...


Freeware
+ Always Free
+ Can't sell it on to other people, but you can copy it and give to your pals

Examples Include - MSN Messenger, SKYPE, LimeWire, MS Paint, Windows MovieMaker

Shareware
+ Free Trial Period
+ Need to buy it after this period (money, no mario coins ...)
+ uninstall it if you don't need it after this time

Examples Include - Norton Anti-Virus, StopZilla (?),

Commercial Ware
+ You must buy from the beginning

Examples Include - Football Manager, FIFA, PES, COD, Microsoft Office, Windows XP (Operating Systems)