Tuesday, 13 March 2012

Security Risks


 



Staff are allowed to install and remove software

Allowing staff to install and remove software could lead to staff installing non protected programs carrying viruses and uninstalling actual important programs that the company paid for and needs which may lead to data being lost and money being lost. A solution to this problem is to allow limited access to certain programs for the staff and to monitor what is being installed and uninstalled at all times also installing and anti virus software to protect the system from threats.


                                                 Data is backed up once a month
If data is being backed up once a month then this is not enough. Data should be backed up at least once a week as the system could crash at ant given time which will lead to data and important information being lost which could consequently lead the company to lose important information and business.


Data Tapes in a Plastic Box

Having data tapes in a plastic box on top of a server is by no means secure. The sever heats up which could melt the plastic box which could then lead to a fire starting and the data and other equipment being destroyed therefore the business being destroyed as all important data has been lost. And also as the data is not secure it could be stolen and the data on those tapes could be used by someone planning on committing identity theft. The safest way to secure your backed up files is in a fire and waterproof case that has a lock and placed in a different location.


Records in a Database on Customers

Allowing all staff to access a database that consists of the customer’s purchases, account numbers, bank details, name and address and purchase history is very risky. Any of these users could steal a customer’s personal information at any time and use that information which is known as identity theft for example they could use their bank details to purchase goods for themselves. To tolerate staff that discusses customer’s information to other staff and over the phone to other suppliers is forbidden. The Data Protection Act 1998 that is in place must be followed here and as it is being breached the company and the users are breaking the law this makes your business look very unprofessional. Let your staff know that discussing customers details is unacceptable as it is breaking the law and will lead to a written warning or being Paid Off.

Email is Available to All

Emails being available to all staff can lead to spam and malware as staff may click in to emails, links to websites that ask for personal details and adverts that consist of viruses, worms and Trojans. Worms and viruses carry out nasty actions like shutting down the system, making the system slow and unresponsive.  Viruses spread from one program to another and from one computer to another. Trojans steal information and harm computers. The outcome of this is a slow responsive system which means business can not be run to standards. I recommend that you install an anti virus software and give authorisation to a few members of staff to access emails.


IP Address Log

Not keeping the IP address log of the sites visited means you can not see what websites your staff are visiting during working hours and as there are no restrictions for internet access the staff could be viewing inappropriate and offensive sites. Sites that carry viruses and worms may be viewed by the staff. Firstly I suggest that you install an anti virus software and secondly I suggest that you set more discipline within the company to monitor the sites that are being visited by your staff.


No Firewall

Having no firewall in place means you have no form of protection from worms, viruses, Trojans etc. Without a firewall your network is vulnerable to viruses and hackers. Therefore unauthorised individuals can get in to your personal details, files and documents and steal this information and ruin your business and corrupt your system and with no internet restrictions the network is even more vulnerable to threats from the internet. You should install a powerful and recommended anti virus software to protect your files and the personal details of your customers from hackers and viruses.


Downloads are not Monitored

When downloading media files like videos, music, photos, these downloads must be monitored as the files that are being downloaded could be corrupt and contain viruses and also to know when and why they were downloaded. As there is no form of protection on the system then it is more than likely that viruses will get through when downloading which will corrupt the system, slow it down and slow business down. When an anti virus is in place it will scan the download for viruses, worms, Trojan etc before downloading it so it is recommended you install one.

Entrance Doors are not Protected by Keypad

You should keep a building secure to prevent unauthorized personnel from entering the building and viewing important files, stealing some ones identity, viewing confidentiality files and stealing information. If this were to happen your business would crash and burn as no one would trust you with their details therefore no new customers and current customers would cancel their account. You can secure a building by having CCTV…giving all employees an ID card that has to be swiped through a keypad to enter the building. Also a security man to stand at the entrance at all times depending on how large and important the information inside the building is.


Egos a catalogue sales company has asked me to evaluate a network for security threats and this is what I have found;

No log on to the network

Having no log on to a network means anyone can access the network and as there are 50 users this means 50 people within the same company have no security on their documents or files. This could lead to a user accessing another user’s network and deleting or stealing their files. It is recommended to have a log on to a network to keep information secure.

Unrestricted Internet Access

With no restriction to what is accessed on the internet within the company, could possibly lead to viruses, worms, spam, malware etc and this usually leads to the system being non responsive or failing which means customers may be impatient while making orders and cancel their order which looks unprofessional and the company will lose money. To avoid this it is recommended to put restrictions in place and to install an anti virus software to protect the network from viruses.
 

Thursday, 19 January 2012

Assignment 3 Distinction

Assignment 3


My friend has contacted me about her computer as she has become a fan of computer games but is not happy as it is slow at responding and the video quality is not to standard.

First of all your internet connection could be slow and the signal may be bad so I would recommend a better ISP (internet service provider) as the one she is currently with could be low in speed. TalkTalk have up to 20Mb which is very good and great speed. It will be worth changing from her current ISP to TalkTalk as they also have a great deal at the moment which costs next to nothing.

The poor video quality could be down to her monitor as it may not have the features of HD or LED which makes a livelier picture with enhanced colours and images. I would recommend a new up to date monitor as this will make her gaming experience more thrilling as it will bring lifelike images to the screen and will show her a new world of colour.

I would also recommend buying a graphics card for your computer which is ideal for gaming, watching movies and viewing photos and videos. They are very cheap and will make the world of a difference to your monitor and gaming experience.  I also suggest RAM (random access memory) this is a form of computer storage which gives you faster speeds and much more. It is essential for upgrading your computers performance and efficiency.

Also an antivirus software to scan your computer for viruses and spyware and to remove them. An antivirus will scan and clean out your computer to keep it running effectively and keep your information safe from theft and fraud. There are many types of antivirus software that can be purchased although the most popular is Norton Security and this can be bought in any computer shop.

Thursday, 15 December 2011

Assignment 3

Assignment 3

 A friend has contacted me for help and advice regarding purchasing a PC to work from her home. I have asked a few questions so I can research specific hardware and software components that will suit her needs. The basic things first are the monitor and base unit.






This is a PC monitor. I have chosen this monitor for my friend as it is a great price and a great monitor at just £119. You will achieve the blackest black and the whitest of white. You are able to enhance the colour, brightness, contract and sharpness to suit you to your liking.





I have chosen this base unit because it has great quality. It is ideal for the entire family for either work or play. It has 500GB which makes it perfect for storing photos, music, movies, important information etc. It is at a reasonable price at £449.00 and is pre-installed with Windows 7 Home Premium.





Database and Spreadsheet


I have chose Microsoft Office Home at £80 as it is cheap and a very convenient  to install. It offers a great way to bring forth your best work in the office, school or at home. It has spreadsheets, databases, excel, publisher, visio, access and word. All the essentials you need for office or home work.










Internet and Email

TALKTALK

£3.25

Up to 20Mb


I have chosen TalkTalk as the ISP (internet service provider) because it has free wireless router and free connection. Evening and weekend calls and 12 months half price and it has up to 20Mb in speed also because it is a great deal and connection is free.




Transfer Large Video Files

I chose a Seagate external portable hard drive because it is compact and perfect for on-the-go at just £46.00. You can add more storage space to your computer and take large files with you werever you go. Setup is straight forward and easy, you simply connect a USB cable and you are ready to transfer files. Plus, it is automatically accepted by Windows, so there is no need to install software. Saving files is easy too, just drag and drop the things you want to save. It's easy to use, fast and energy efficient. It has fast data transfer speed with USB 2.0 connectivity and 5400 RPM drive performance. Built-in power management so energy is saved.





Computer Games and Joystick

At just £14.00 online I have chosen the computer game Sims 3 because it is enjoyable and you or your child will experience the variety of everyday life. It is educational on the realities of growing up and adult life. It also helps you or you child express your creativity and has great ratings.






I have recommended the joystick as a controller for computer games because for just £25.00 it makes the experience of playing games more exciting and thrilling. It is easy to use and control. It has handle rotations, hat switch and throttle.













Digital Camera and Printer

I recommend this digital camera because it is just £49.38, is a brilliant make and one of the most common makes. It is attractive and easy to use. It has 12 mega pixels and 3x optical zoom and a 3.4 inch LCD Screen with digital image stabilization which is brilliant for taking pictures and making videos. It can be plugged into your computer simply using a USB to transfer photos and videos to and from your PC hassle free.







I have chosen this printer/copier to recommend to my friend as it is only £57.00 and is an all in one colour ink jet. It uses high quality ink cartridges which are at a low cost so therfore affordable. It has an effortlessly wi-fi set up and can be easily connected to your wireless home network. It delivers high quality photos that dry instantly with brilliant detailed graphics and documents.




Friday, 18 November 2011

Assignment 2

I received a phone call from my friend asking for my help. Her son is visually impaired and she explained that he has trouble using the software on his computer in its default setup.


I am going to minimise the ribbon so that it will only appear when the user clicks on the menu name.

Before ribbon is minimsed
After ribbon is minimised


I am going to add Font Style to the Quick Access Toolbar.

Choosing more commands for the quick access toolbar



Adding Font Style to QAT

Font Style added to toolbar


I am going to rearrange the icons on the desktop.

Before icons are rearranged

Icons arranged


Icons made larger


I am going to show printscreens of using the magnifier, the lens and the dock.

Opening the magnifier

Using the magnifier



Opening the Lens

Using the Lens
Opening the Dock

Using the Dock




I am going to change the default display to a higher resolution.







I am going to open the Narrator and setup the voice settings




                                                                  Opening the Narrator


Using the voice settings on the Narrator



The changes I have made to MS Word, the desktop and the display will help my friend’s son to see the screen more clearly and make using a computer a lot easier for him with less hassle.

By minimising the ribbon he now has less to try to look at and there is nothing confusing him as to what he has to click on.
By adding Font Style to the Quick Access Toolbar it means he only has to look at the one place to change the style of the font. As he is visually impaired this means he does not have to strain to look for it along the ribbon.
By rearranging the icons and making them larger can help him see them more clearly.
Using the magnifier is great for visually impaired people this magnifies the words and the screen to a level that suits the individual. It provides a minimum level of functionality.
The lens are also of great benefit as when he scrolls over words or pictures they will appear beneath the lens at a much larger size. Unlike the magnifier if he just wants to look at a certain paragraph or a certain picture he can do so placing the lens over that picture or paragraph.
When he uses the dock this will make the screen larger and will largen the ribbon so it is more clearly for him to choose the options on the ribbon for example the colour of his font or if he wished to insert a picture or graph.
Changing the default display by opening the narrator and using the voice setting will highly benefit him as when he is really struggling to see the screen and understand what he is looking at or he has trouble seeing what he wrote and wished to spell check it the narrator will say the words and sentence to him.

Computer software can be used to display bright attractive moving images which can encourage children with visual impairments to make effective use of their vision.
There is a wide range of software and hardware devices that can help the visually impaired. Purpose made portable Braille computers and Braille input and output devices for standard computers are one of the many electronic devices specifically designed for someone with a visual impairment.

Thursday, 27 October 2011

Hardware Components

               Processor

  • A processor performs the arithmetical, logical, and input/output operations of the computer system.
  • It has four functions fetch, decode, execute and write back.

Memory
Ram
  • RAM stands for Random Access Memory.
  • It is a form of computer data storage.
  • The two types of RAM are Static Ram and Dynamic RAM.

Input/Output Devices


Input Devices

MOUSE
  • A mouse is a pointing device that consists of an object held under one of the users hands with one or two buttons and a scrolling wheel.
  • The mouse's motions translates into a motion of cursor on a display.
KEYBOARD

•The keyboard remains the most commonly used for direct  input into computers
•A keyboard has characters engraved or printed on the keys and each press of a key corresponds to a single symbol
•Most keyboard keys produce letters, numbers or signs, others keys produce actions or commands



WEBCAM



Tablet




  • A tablet allows users to create and draw images, watch videos play games listen to music.
  • The tablet is usually used by business men.


                Microphone


  • A microphone converts sounds into electrical waves.
  • Microphones are used in telephones, kareoke systems, tape recorders etc. For webcam it is essential to have a microphone so you can talk to the person you are sharing the webchat with and so that the person can hear you.


      
A  webcam is a camera that is connected to a computer, either directly or wirelessly
                    
              
                 Webcam
      
  • They are known for their low costs and flexibility
  • They can be used for business and pleasure.


         TOUCH SCREEN
 
•A Touch Screen is a visual display that can detect the presence and location of a touch within the display area.
•It works by touching the screen with a finger or hand.
             SCANNER
 •A scanner is a device that scans images, printed text, handwriting or an object and changes it to a digital image.
    GAMES CONTROLLER
•A games controller is used with games or entertainment  systems used to control an object or character. 
•http://www.youtube.com/watch?v=9MOIkSceV6k


         Output Devices

                   Printer
  • A printer is able to print the data stored in a computer it is connected to.
  • It can print documents, pictures and graphics usually on paper.
  • It is connected to a computer through a USB device.
  • Your images or data can be printed in black or colour depending on ur printer.

                    
Monitor
  • A monitor is a screen that displays output from a computer.
  • It allows the user to see programs they are vieweing on the computer.
  • It shows images, videos, animations and graphics.


            
Sound
  • Speakers are already installed into your computer but have low quality sound.
  • You can purchase better speakers and plug them into your computer for better clearer sound.
  • Speakers features usually consist of a LED pwer indicator, a headphone jack, controls for volume and a remote volume control.