Documentation

Documentation is written for people who need to use the software. Documentation should be broken down into steps and easy to understand. Having documentation is important for troubleshooting and can be used for training for users. It can also help users if they are having problems with configuration. It also helps to show people interested…

RAID

Raid stands for Redundant Array of Independent Disks. This is used to prevent data loss and redundant data RAID hopes prevent data loss. RAID has different levels of RAID. RAID level 1 reads the data  to a set of hard drives the drives are equal should one fail you can continue with one. RAID  uses half the…

Data Redundancy

Data redundancy is when  the same data is entered multiple times it can also mean when unnecessary information is present in the database . This can lead to anomalies which are sets of data which are repeated. Backing up is a way to ensure that if data is repeated you can restore to a previous…

Data integrity

Data integrity is the rules which have been set in place by the developer of the software. Only specific types of data is allowed to be entered into the database or program. The data should stay the same and up to date over the time the database or program is being used. Date integrity makes…

Code of Conduct

A code of conduct is a document which states the requirements and rules in a workplace or organisation. A code of conduct promotes appropriate . It can be used to solve problems and disagreements if they happen in the workplace. The code of conduct applies to all members of the organisation.  The code of conduct…

HTML

 Html is a language which structures webpages.This allows developers to create online documents including text, tables, lists and photo and other elements. Retrieve information using links to other pages. Design online forms for making transactions teaching information using external services  and ordering products. They can also include spreadsheets, Video and sound clips and other web apps…

Data Flow Diagrams

Context diagrams or data flow diagrams are used to illustrate how data is processed by a system. It shows the inputs from the user. Where is the data coming from and how is it being stored. There are two main types of context diagrams. Yourdon and DeMarco notation. There are two formatting for  data flow…

Software Development Life Cycle Documentation

  Systems development documentation as a part of the SDLC Software development life cycle documentation is important because it is a record of the work that has already been completed the company might  have to complete some of the steps in the process again. If you need to hand over the project  to another developer…

Software Development Life Cycle

Preliminary analysis people who are in a company meet together and decide who the target user who is going to use the piece of software. how they are  going to use the piece of software. what information is going to be stored this process is usually done by system   analysts then are agreed by…

EST Material

Storage (primary and secondary) https://pc.net/helpcenter/answers/primary_and_secondary_storage Functions of the components of the central processing unit (CPU) http://study.com/academy/lesson/central-processing-unit-cpu-parts-definition-function.html arithmetic logic unit (ALU) (What is it, explain it, where is it used, give an example) control unit (CU)  (What is it, explain it, where is it used, give an example) program counter 
 (What is it, explain it, where is it…

Prototyping


  Prototyping is  a software development process where the developer just want to get the software out quickly. The developer and customer work together. It  a software development practice called Rapid Application Development  practice. In this practice the software in created with not much planning. The product may be developed as several different prototypes and…

Wireless Mouse

A wireless mouse uses a RF (radio frequency) Trasmitter to tell the computer the position of the mouse. The transmitter in the mouse sends a radio signal to the computer  about the movements and button presses.