Ensuring Data Integrity

:Back-Up Teqniques- Must be done regularly and must be planned or scheduled (On a Calandar)

:FRECUENCY OF SAVING- SAVING OFTEN IN CASE OF POWER CUT, AND CRASHES.

:VIRUS PROTECTION FACILIYTY-YOU NEED FIRE WALL. BLOCKS ANY THING UNAUTHOURISED.ANTI-VIRUS SOFTWARE.

:UPS OR SURGE PROTECTER- SURGE PROTECTER IS DESIGNED TO PROTECT ELECTRICAL DEVICES FROM VOLTAGE SPIKES.UPS= UN-INTERUPTED POWER SUPPLY. FOR SHORT TERM POWER CUTS.

3DS Launch

The Nintendo 3DS is a portable game console produced byNintendo, first released on February 26, 2011. A distinguishing feature of the system is its ability to produce "3D effects without the need for any special glasses" via a process called autostereoscopy. The device was released in Japan on February 26, 2011, Europe on March 25, 2011, North America on March 27, 2011 and Australia and New Zealand on March 31, 2011. The 3DS succeeds the Nintendo DS series of handheld systems( The DS, DS lite, DSi and the DSi XL)

Security

• Locking the Door: Physical lock on the door to prevent unauthorized access.
• Locking the Keyboard: Screensaver effect (When Screensaver is activated) and when refreshed the password enter box will open up, also ctrl + alt + Delete brings up the password enter box as well.
• Locking the Workstation: Another physical lock that holds the computer locked to the desk.
• Shutting Down the Workstation: Shutting down the computer so that when it is started up the person who is trying to access it will have to log on.

Data Integrity

Back-up Techniques:
                                 Must be regularly.
                                 Must be backed up on schedule.
Visus Protection Facility:
                                        Use a Firewall (Blocks any unauthorized access by monitoring traffic).
                                        Antivirus software can be downloaded to protect your computer from viruses.
Frequency of Saving:
                                  If any number of things such as power cuts, battery depletion or crashes your work                      
                                  should be saved so it is not lost when those happen.
UPS or Surge Protector:
                                      A device on the electrical circuit that blocks spikes/surges in voltage.
                                      Uninterrupted Power Supply (UPS) is a solution for short term power cuts the                          
                                      computers and servers will keep running.

2781 File Structure

Personal
              -Images
                         -Screenshots
                         -Holiday
              -Videos
                         -Viral
                         -Movies
                      
              -TV
                     -Scrubs
                     -SNL
                     -Chuck
                     -Other
            
              -iTunes
                        -Apps
                        -Music
                        -Podcasts

School
           -Computer Studies
                                       -2780
                                       -2781
                                       -18739
                                       -18740
                                       -18741
           -English
           -Maths
           -Geography
           -Economics
           -Science


                    
            
                

Application software

Word Processing: Letters, Memos
Spreadsheet: Mark Recording, Balance sheets
Database: Large bak of info, Easy retrieval of information

Printer Issues

Paper out: When the Printer says out of paper it means there is no paper in the paper in the tray. To fix this you need open the paper tray add more paper then shut the paper tray again.

Paper jam:When the printer says it is jammed it means there is a piece of paper stuck in the printer . To fix this you need to open the printer and feed the paper through till it is dislodged.

Load A4 paper: When you want to load A4  paper you need to set the tray to the A4 size. Then you need to set the printer up for A4.

Printer Offline:When the printer the printer says it is of line it means you wont be able to print. To fix this you need to restart the printer.

How Twitter Helped Christchurch

In what ways did twitter help in Christchurch?:

It helped because when people were trapped in the fallen and destroyed buildings were tweeting things like Help me stuck in building need rescue and also people outside Christchurch have been tweeting @ the people in Christchurch with support messages and links to relief websites and donation sites “please help the people of Christchurch, New Zealand by going to www.redcross.org.nz/donate #eqnz” was tweeted by @MCHammer. This also helps because it means that people all around the world who read MCHammer’s tweets will be aware of the situation and a few may even click the link that was tweeted and donate.

Quote examples of tweets that show different uses

MCHammer‎ RT - please help the people of Christchurch, New Zealand by going to www.redcross.org.nz/donate #eqnz”

Why is twitter good in a crisis

Because people can tweet @ the twitter users who are trapped or are helping and using twitter actively telling them where they are and what is wrong

Spacial Environment

Space: there should be sufficient for the user to move around and be comfortable

Housekeeping: Equipment should be kept clean and required maintenance done

Atmospheric condition the room should be a good temperature and with fresh air

Noise: both external and internal noise should be kept within reasonable levels

Lighting: lighting should be sufficient and set up so as not to reflect off the screen

Décor: should be pleasant and relaxing

Printer location: away from user to reduce noise and smell

Inputs, Outputs, Storage and Processing

ROM: read only memory is used to be read. It job in the computer is start it up because it is the same every time.

RAM: Random access memory is used to store information but then it retrieves the information when it needs it again .

CPU: Central processing unit is a section of the computer that carries instructions of a computer program

Motherboard:  The motherboard holds many of the crucial components of the system

Keyboard: The keyboard typically has characters engravedor printed on the keys and each press of a key typically corresponds to a single written symbol.

Mouse: The mouse's motion typically translates into the motion of a cursor on a display.

Display monitor: A monitor or display is an electronic visual display for computers.

Disk drive: it stores files

Printer: a printer is a output devivice which produces a text or graphics of documents stored in electronic form, usually on physical print media such as paper or transparencies.

Digital camera: a digital camera is a camera that takes videoor still photographs, or both, digitally by recording images via an electronic image sensor.

Scanner: A scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to adigital image.

Modem:

WiFi: A Wi-Fi enabled device such as a personal computer, video game console, Smartphone, or digital audio player can connect to the Internet when within range of a wireless network connected to the Internet.

Ergonomics

Desk Dimensions: Have a large desk space so the computer does not take up all desk space as to allow for things like wrist rests.
Posture in Chair & Seating Hight: Firstly, one option is buying an ergonomic chair, sitting up straight and seating high should place your wrists at 90°.
Feet Placement: Should be flat and 90° with your legs.
Position of Monitor: Should be at perfect head hight so user is not looking down but straight ahead. Monitor should also be at least 20 inches away from users face.
Keyboard & Mouse Relative to User:  Ergonomic Keyboard advised, with enough space to accompany a wrist rest wrist rest. should be square 90° with the users elbow.
Rest Period & Exercises: for every two hours you should get at least 30 minutes rest and within that 15 minutes should be exercise.

Application software

Word processing: Is a computer application that is used for editing, formating of any printable documents. Spreadsheet: Is a computer application that stimulates the paper, accounting worksheet.                     
Database: its intended to organize, store, and retrieve large amounts of data easily.
Desktop publishing: Combines a personal computer to create publication document on a computer for either large scale publishing or small scale local multifunction peripheral.
Graphics: Are visual presentation on walls, computer screens etc.
Communications: Communications is a process whereby meaning is defined and shared between living organisms.
Multimedia: Multimedia is a media and content that uses combination of different content forms.
Web browser: A web browser or internet browser is a software application for retrieving, presenting and traversing information resources on the world wide web

OS-App relationship

• The app allows the user to communicate with the machine ( User interfaces with the app).  (User tells Microsoft Word to print)
•  App passes on messages to the OS.  (App tells OS to print the document)
• OS communicates with the Hardware. (OS passes print job to the Printer )

                            App is designed to interface with the specific OS.

First Blog - Hardware vs Software

Hardware vs Software:

Software and hardware are computer-related terms that categorize different types of computer related paraphernalia.

Hardware includes every computer-related object that you can physically touch and handle like disks, screens, keyboards, printers, chips, wires, central processing unit, floppies, USB ports, pen drives etc.

Software includes every computer-related program that you cannot feel with the physical senses for example, system operating system, an anti-virus program, the web browser, the memory, all data, reports etc. All storage devices that keep data safe and store it in some electronic form are hardware while all data in itself is software.