This desktop and the display that I have set out can make going on a computer much easier for someone you is visually impaired are has any type of disability rather than using a normal set out of a computer. There many ways to help a child with disabilities if your son/daughter has any visual problems you can get stickers to go on the letter on the keyboards and the stickers are in and the letter are in bold. You can also gey large computer for people with eye sight problems

 They can also come in different colors these can really help your son see the keyboard more Cleary also use can use a tool called magnifier can help your son see the screen more clearly as you  can zoom up to 1600% this can help your son improve his reading on the screen. If your son can not read the screen there is an application called narrator.

Narrator is a text to speech utility for users who are blind or have impaired vision. Narrator reads what is displayed on screen the content of the active window, menu, options, or the text that you have typed on screen. For example if you click on all programs the narrator will repeat just what you click on. When using narrator you can change the languages of the speech and the set speed and set pitch.

Changes that I have made

I have changed the background color of the page so that your son can see the highlighted text more easily I have changed the background color to blue and the text color to white. Also changed the size of the icon on the desktop to help your son what he is clicking on and you can move the icons around the screen you have a choice of what size you would like you icons to be small, medium, are large. I have added new icons to the quick access tool bar see it is easier to find. 

Soft Ware

Software

Software typically refers to programs which need to be installed into a computer  in order to perform certain applications or functions. Software is typically installed into the hard drive. Windows is an operating system Software package.
There are all different types of software for an anti virus,firefox home page and windows.

http://windows.microsoft.com/en-GB/windows/home

 

System software refers to the files and programs that make up your computer's operating system. System files include libraries of functions, system services, drivers for printers and other hardware, system preferences, and other configuration files. The programs that are part of the system software include , file management tools, system utilites,etc

A firewall would be a software or hardware device that is used to prevent hackers to access to your computer and your files. Some internet routers can preform this function as well as some software such as Windows Defender.

Anti virus
Antivirus is software that you install on your computer to protect it from hackers or spyware, which steals your personal informationare if virus get in your computer it can be affected. Anti virus can come free but the ones that are 100% safe cost money they cost from 30 to 60 pounds

Application software
few examples of types of software applications: word processors, spreadsheets, and media players. Application software often includes multiple applications bundled together as a package or suite, like Microsoft office or OOpen office which both contain a suite of applications for common office usage. There are many types of applications software.

Game software/spreadsheet

For game software you just need to have the right software to hold the game datas and information.spreadsheet soft is the ells formula and the way the spreadsheet is layed out there is all different types but most of them do the same thing.

Hardware Components

Hard Ware Components

The processor tells your computer what to do and when to do it, it decides which tasks are more important. them to your computers needs.

A processor is a primary chip inside a computer and it contains the digital circuitry.  A processor executes all the programs and the instructions inside the computer. The processor is also embedded in the small devices and in the personal computers and is known as microprocessor. Its speed is measured in the Gigahertz.  Higher the processor’s speed, the more instructions it can process in less time.  It is also known as the central processing unit (CPU). 

RAM

Computer memory can refer to many types of memory within a computer, but, typically, it refers to random access memory (RAM). It is physically found on computer chips that are inserted onto the computer’s motherboard. RAM is electronic, rather than mechanical; that is, it does not have moving parts and therefore data access to it is very fast. Modern computers often have somewhere between 256 MB (megabytes) and 2 GB (gigabytes) of RAM, although there are, of course, computers with more or less RAM. RAM is also volatile, meaning that it gets lost when the computer is switched off.

Data flow Diagram

Storage Devices

A computer storage device is any type of hardware that stores data. The most common type of storage device, which nearly all computers have, is a hard drive. The computer's primary hard drive stores the operating system, applications, and files and folders for users of the computer.

External hard drives that connect via firewall and usb are also common. These types of drives are often used for backing up internal hard drives, storing video or photo  or for simply adding extra storage.

USB

A flash drive is a small storage device that can be used to transport files from one computer to another. They are slightly larger than a stick of gum, yet many of these devices can carry all your homework for an entire year! You can keep one on a key chain, carry it around your neck, or attach it to your book bag.

A cd rom drive is use to store infomation is stead of on to you conmputer, laptop as you can take it any wera you would like to they can also hold dvd and othere infomation.

Computer systems

COMPUTER SYSTEMS



Pc and Base unit

Short for Personal computer or IBM PC. The first personal computer produced by IBM was called the PC, and increasingly the term PC came to mean IBM or IBM-compatible personal computers, to the exclusion of other types of personal computers. Pc stands Personal computer.

Laptops 

Laptops are versatile, lightweight, and portable. Increased RAM (random access memory) and hard drive space make them more powerful than their predecessors. They can handle the most demanding software applications, and the longer life of modern batteries encourages their use away from the home or office.

A netbook is a mini-laptop computer designed for mobility, wired and wireless online access, word processing and general office applications. They are very light and featuring LCD screens between and small screens the netbook is a perfect companion for people on the go who want connectivity without carrying a much heavier, full-sized laptop along.

 

The main purpose of a personal digital assistant (PDA) is to act as an electronic organizer or day planner that is portable, easy to use and­ capable of sharing information with your pc. It's supposed to be an extension of the PC, not a replacement.

Gane console 

A video game console is an interactive entertainment computer or modified computer system that produces a video display signal which can be used with a display device (a television, monitor, etc.) to display a video game. The term "video game console" is used to distinguish a machine designed for consumers to buy and use solely for playing video games from a personal computer, which has many other functions, or arcade machines, which are designed for businesses that buy them and then charge others to play.

Mobile Phones

An electronic telecommunications device, often referred to as a cellular phone or cell phone. Mobile phones connect to a wireless communications network through radio wave or satellite transmissions. Most mobile phones provide voice communications, Short Message Service (sms), Multimedia Message Service (Msn),  and newer phones may also provide internet services such as Web browsing and e-mail

A Tablet PC is a cross between a notebook PC and a (PDAIt's a flat-panel portable PC in the form of a slate. A user inputs data either by tapping the screen. The tablet PC can wirelessly connect to the Internet and other PCs and is intended to provide the power of a notebook in hand-held form.

A server is primarily a program that runs on a machine, providing a particular and specific service to other machines connected to the machine on which it is found. Nowadays, server functionality has become so rich, complex and varied in nature that there are whole very powerful computers dedicated to being exclusively servers. This has led many non-technical people to denote servers as being machines that run services.

Embedded devices are small programmable chips that can be programmed to execute certain orders such as open doors bank machines'
 control panel in an elevator is an embedded device
coffee machine that senses the temp of coffee/water mixture
Auto sliding doors that senses the temp of people approaching the door giving the command to a mechanical accessories to slide open then close after certain delayalot of things that run without human beings intervention are generically described as Embedded devices.

 

Output Devices

Monitor - A monitor is the screen on which words, numbers, and graphics can be seem.  The monitor is the most common output device

Printer - A printer prints whatever is on the monitor onto paper.  Printers can print words, numbers, or pictures

Speaker - A speaker gives you sound output from your computer.  Some speakers are built into the computer and some are separate.you select the volume that you would like it to be.

Headphones - Headphones give sound output from the computer.  They are similar to speakers, except they are worn on the ears so only one person can hear the output at a time.

3G

§Bluetooth is a way of exchanging data wirelessly over short distances, you can send pictures and videos, music through Bluetooth it is a part of everyday life you can also connect to other devices  and take control of it you can only do this if they do not have a lock on it you ca also connect to you computer and download songs. If you leave it on for to long it with run your battery low very quickly. You can connect to other people phone so they can send you images videos, music.

Wireless can be use for many different thing for example you router at home can be wireless if you want to connect to you internet at home you can even use you phone to go on the internet if your phone has a wireless device for example iphone blackberry etc there are many different wireless device like mouse keyboard and even printers. Wireless is known as Wi-Fi it is away of getting on to broadband  the out all of the wires

 

3G is the third generation of wireless technologies. It comes with enhancements over previous wireless technologies, like high-speed transmission, advanced multimedia access and global roaming. 3G is mostly used with mobile phones and handsets as a means to connect the phone to the Internet or other IP networks in order to make voice and video calls, to download and upload data and to surf the net.