Assignment 2 Task 1

How my print screen helps people who have vision problems at the start off my print screens it shows how to more your icons around the home screen that means someone with vision problems will know were to the put the icons so  he/her can see it better they can also make the icons bigger or small so they can see what application they want to go into. 

I also show you how to get to the access tool bar in Microsoft word so that it is easy to get the things you need instead off spending time looking for them you can also add stuff to the access toolbar the flowing print screen is how to use magnifier it is very helpful to someone who has vision problems because you can use three different types of magnifier you have lens which you can zoom into your work are whatever else you are doing.

The next one is called docked which lets you see the top of the page and the current bit off work you are doing the flowing magnifier is called full view which Is just the same as lens  but you get a full view then my last print screen is off narrator which will read aloud what is on the screen as you navigate  using the keyboard how to get to narrator you simply go to all programs click on ease access and it just under magnifier if someone had vision problems  they could go on narrator which will help them with there work like if they have spelling mistake the narrator would tell them that they have mistakes it is very good applications to have and also if a blind person was using a computer you can have a  microphone that he/her talks into and it puts what he/her said into writing and  it will read it back to him computers.

Now a days computers are moving up in the world for people with disability  like 20 years ago you would not  have narrator to help someone who had vision problems or blind person would not be able to use a computer because there were just  a few applications back in the days technology has come a long.

 computers now  can help the disabled with special care Web site designers can make their sites highly accessible to disabled users.






Blind people can have documents read out loud electronically on their computer. And for people who cannot use their arms to type speech recognition programs may be the answer. These let people give commands to their computer or have their words turned into print.

Screen Magnification / Enhancement Software 

 People with low vision typically need to magnify or enhance the screen. Large monitors and software application programs can provide minor magnification and simple adjustment of font sizes, where screen magnification software provides higher levels of magnification and contrast and color enhancement.

Software

Systems software Software is the general term for information that's recorded onto some kind of medium. For example, when you go to the video store and rent or buy a tape or DVD, what you're really getting is the software that's stored on that tape or disk. Your VCR or DVD player are hardware devices that are capable of reading the software from a tape or disk and projecting it onto your TV screen, in the form of a movie.

Applications software   Application software is a term for software created for a specific purpose. Typically it is based on customer requirements but there are classes a general applications here are some examples off applications software                                              Image organizer
Media content creating/editing
3D computer graphics software
Animation software
Graphic art software
Image editing software
Raster graphics editor
Vector graphics editor
Video editing software
Sound editing software
Digital audio editor
Music sequencer

Software utilities    is a kind of system software designed to help analyze, configure, optimize and maintain the computer. A single piece of utility software is usually called a utility or other eamples would be Anti Virus Software, Firewalls.

FIREWALL- A firewall can help prevent hackers or malicious software such as worms from gaining access to your computer through a network or the Internet. A firewall can also stop your computer from sending malicious software to other computers. also means that people cant hack into your personal file to get all your information so they cant steal your identity access your bank account etc. 

Antivirus software- is a computer program that detects prevents and takes action to disarm or remove malicious software programs such as viruses and worms. You can help protect your computer against viruses by using antivirus software such as Microsoft Security Essentials

Hardware Components

Processor- The processor is the part of the computer which processes or deals with the data and processes in the system. (cpu) is the portion of a computer system that carries out the instructions of a computer program to perform the basic arithmetical, logical, and input/output operations of the system

memory refers to the physical devices used to store programs  or data there are all different types off storages devices.(CD-ROM and DVD-ROM). There are two main types of semiconductor memory: volatile and non-volatile.

Tree Frog

Tree Frog: Add this tree frog to your page to see how he inquisitively follows your mouse or eats the flies you give it

storage devices

Short for Compact Disc-Read-Only Memory, a type of optical disk capable of storing large amounts of data -- up to 1GB, although the most common size is 650MB (megabytes). A single CD-ROM has the storage capacity of 700 floppy disks, enough memory to store about 300,000 text pages

Memory Sticks are used as storage media for a portable device, in a form that can easily be removed for access by a personal computer

A hard disk drive (HDD; also hard drive or hard disk)^[2] is a non-volatile, random access digital magnetic data storage device. It features rotating rigid platters on a motor-driven spindle within a protective enclosure. Data is magnetically read from and written to the platter by read/write heads that float on a film of air above the platters. Introduced by IBM in 1956, hard disk drives have decreased in cost and physical size over the years while dramatically increasing in capacity

 

devices for network connection

Bluetooth- is near in every mobile phone now a days you can connect with your  friends  phone and send via Bluetooth eg (pictures songs videos) also Bluetooth has upgraded you can have Bluetooth wireless ear piece which means when your  driver you can answer your phone while  you are driving and you can connect to your cd player and play your music from your phone using Bluetooth eg (parriot)

Wireless- router  is a device that performs the functions of a router but also includes the functions of a wireless access point and a network switch. They are commonly used to allow access to the Internet or a computer network without the need for a cabled connection.

 

 

 

 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.

 

 

   is a technology that will transform wireless communications in a completely new way. It is also known as beyond 3G since it provides

With a higher data rate and broader bandwidth capability, 4G technology will focus on providing seamless service across a multitude of wireless networks and systems

 

Network Interface Card." Pronounced nick this is the card that physically makes the connection between the computer and the network cable

Different types off computer systems

base unit is the main part of the pc that lies flatthis main box where you insert the cds and/ordisks sometimes incorreclty called the processor the monitor or the hard drive

laptop

also called a notebook computer is small personal computer desgin for protability usually all of the
interface hardware that is needed to operate the laptop such as usb port previously parallel and serial ports graphics cards sound channel etcare built into single unit

Netbooks (also called mini notebooks or subnotebooks) are a rapidly evolving category of small, light and inexpensive laptop computers suited for general computing and accessing web-based applications; they are often marketed as "companion devices," that is, to augment a user's other computer access Walt Mossberg called them a "relatively new category of small, light, minimalist and cheap laptops. By August 2009,  called netbooks "nothing more than smaller, cheaper notebooks

 

Mobile phone 

A mobile phone allows calls into the public switched telephone system over a radio link. Early mobile phones were usually bulky and permanently installed in vehicles; they provided limited service because only a few frequencies were available for a geographic area. 

Now a days mobile phones can surf the web an also can be use as a mp3 also you can watch videos and can play games eg snake 

 

 GAME CONSOLE A handheld game console is a lightweight, portable electronic device with a built-in screen, game controls and speakers. Handheld game consoles are run on machines of small size allowing people to carry them and play them at any time or place

A tablet personal computer or tablet PC is a tablet sized computer that also has the key features of a full size personal computer

 

network server is a computer designed to process requests and deliver data to other (client) computers over a local network or the Internet. Network servers typically are configured with additional processing, memory and storage capacity to handle the load of servicing clients. Common types of network servers include:

Web servers

proxy servers

FTP servers

online game servers

 

Embedded devices are small programmable chips that can be programmed to execute certain orders
the control panel in an elevator is an embedded device
thermostat in your Air conditioning unit that senses the temperature and runs/switch off the A/C according to the surrounding temp
thermostat in your 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

Printer  In computers, a printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers are sometimes sold with computers, but more frequently are purchased separately. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing

¨speaker gives you sound output from your computer.  Some speakers are built into the computer and some are separate

montiors 

The monitor displays the video and graphics information generated by the computer through the video card. Monitors are very similar to televisions but usually display information at a much higher resolution.

Different Types Of input devices

Keyboard

 a keyboard is a input devices designed to enter text characters and other commands into the computer and yo alos need a keyboard for mircosoft

Mircophone is use to recored sound.Then the sound is saved on a file in the computer also  converts sound into an electrical signal Microphones are used in many applications such as telephones, tape recorders, karaoke systems, hearing aids, motion picture production

Joystick is use to move the curosr from place to place and to click on various items in programs a joystickis used mostly for games children mostly are the ones that have joysticks

scanner is used to copy pictures or ther things and save them as files on the computer

webcams are use to have video cyber chats there are long distances away  yuo can have  videos chats  with familys or business it is lot easier to use than typing all the time it means you just have to sign inot skype and you see if there online then click on the webcam symbol.

bar codes scanner scans we lebels thats has bar code on then that information is then saved into the computer bar codes are moslty in shops

 ¨A touch screen is a computer screen or other screen that you can touch with your finger to enter information.  Examples of touch screens include a smart board a microwave a dishwasher or an ATM at a bank also many supermarkets have touch screen machine in stayed  off standing in a line.  like sainburys has them.

¨A drawing tablet is similar to a white board, except you use a special pen to write on it and it's connected to the computer.  Then the word or image you draw can be saved on the computer. click here to see how a graphics tablet works

A digital camera can be used to take pictures.  It can be hooked up to a computer to transfer the pictures from the camera to the computer.  Some digital cameras hold a floppy disk, and the floppy disk can be taken out of the camera and put directly into the computer