Assignment 3

My friend has asked me to to help her with puchasing a new pc and also the software and other items that could be usefull. she has gave me information on what she will be using it for and i have came up with a list of products that i think will suit her needs.


PC and Base Unit

I think that this monitor is good because it is HD and is good for using as a computer screen, gaming and just watching TV it has 1920 x 1080 / 60 Hz resolution and it is only £139.99 which is good value. It has a lot of features such as power saving mode and ecolour management which is also good. I would buy this product because it is a reasonable size for a computer and it is good value for money.

This is a PC Pavillion base unit. it has windows 7 home premium and 4GB of memory . It costs £319.97. I have decided to buy this product because it comes with 3 years "what ever happens" support and is good value and has good programmes on it which will benefit my friend.

Data base and spreadsheets

I chose this anti virus package as the system software for a computer because  its only £24.99 and can be used for up to 3 computers and it comes as a disc so it is easy to install which would help people that arnt that good with computers.

This application package is for one windows computer. It includes all the software you need such as word and excel and would be appropriate for my friend as it has all the applications that will be using and more.

This is utility software it can be used on 3 computers and is in English and on a disc although you have to have certain things on your computer for it to work such as 300 MHz or faster processor, 256 MB of RAM, 200 MB of available hard disk space.

   Internet and email

Sky is a service provider and is the top selling throughout the uk. For £5 a month you can have upto 20MB speed and unlimited downloads. there is a contract of 12months which  means you will pay £60 for the year. when you sign up for the package you get a wireless router and free evening and weekend calls, also if you are a sky TV customer you pay only £3.75 per month. i think this is a good deal because of the cheap price and the actualy things that are being offered

talk talk is the second best service provider in the UK. it costs £3.25 per month for the first 6 moths and then it is £6.50 for the other 6 months because it is a 12 month contract. you get 40gb downloads and upto 24Mb speed. also evening and weekend calls.

 I would choose sky because it is the top selling and  the best price and also has better deals.




Transfere large video files

This product is £139.99 and had good memory it is a good product to buy and is small and compact it has a good capacity of 2TB. It includes a network base and a hard drive and has a very quick start drive. It is a good product to but to transferring large files from one computer to another.

I would buy this product because it is cheep and also has good memort. you can store video files and also documents and any other type of files on to it. it only costs £7.99 and is stylish and can be used on any computer.

Computer Games

This product has 250GB of memory and also comes with additional devices such as controllers and headsets which is good for its money because it only costs £199.99. It comes with a removable hard drive and also a standard definition a/v/ cable.

I picked this product because it has rapid fire trigger also a scroll button and 6 buttons at the base. The product is self powered through the usb and only costs £49.99. it is a good gamestick becuase you can play many games on the computer with it.

Digital camera and Printer

This camera has 14MP and also is only £49.99 pulse has an additional 10% when you buy it online. It has 3x optical zoom and 6.7 digital zoom. also digital image stability. The camera has different effects and also can record video. I think this camera is a very good thing to buy because of the good features,good price and the battery lasts very long.

For £328.99 you get the printer and the netbook.  The printer is wireless and you can print using your somputer or mobile phone, it also has a built in scanner which means it is more compact that having to separate items.

Assignment 2

I have recieved a phone call from my friend asking for my help. Her son is visually impared and has diffaculty using the software in its default setup so i am going to shows ways that will help him.

                             This shows the computer desktop before i rearranges any of the icons.

                I right clicked on the desktop and chose to take off the auto arrange icons option.

                                      I arranged the icons wherever I wanted to put them.

I decided to change my icon size on the desktop which could help someone with vision problems. so i right clicked on the desktop again and clicked on view larage icons.

This shows the large icons.

I am now going to show what i did to add in the font style and other commands to the quick access tool bar

the 3 previous screen shots show how i added different icons like font into the quick access tool bar.

This is a screen shot of the font style added.

I am going to show the magnifier tool which will make everything on screen closer up

this is one of the magnifiers which magnafies anything which you scrool over with the lense

the magnifie shows everything up close at the top of the screen

this shows that the magnifier zooms up the screen compleatly

this print screen shows the resolution being changed.

 

As you can see previously made many different changes to Microsoft Word, the desktop and the display which will help my friend’s son. All the changes I have made will help him be able to use a computer easier because it will be like he is not as visually impaired.

Firstly I changed the size of the desktop icons and rearranged them; this meant that the son would be able to see them better because they are bigger than normal, I changed them to large. I also put the icons in alphabetical order which meant that he would be able to find them more easily because they aren’t in a random order all over the screen.

Secondly I added font style and a few other tools to the quick access tool bar, I think this would be beneficial for my friends’ son because he will not have to look for what he needs on Microsoft word as they will always be at the top of the screen.

Thirdly I changed the resolution on the computer so that the text and images were more defined this means that the boy would be able to see things more clearly although all colour depths may not be available this will benefit him greatly.

Lastly I minimised the ribbon on Microsoft word so that there would be nothing else on his screen until he needed it. Although as I said before I put different things in the quick access tool bar so that he would not always have to go looking for different tools.

Data Flow Diagram

Software

Microsoft windows XP is an example of system software. 
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 software controls a computer’s internal functioning, it also controls the monitor and speakers and also storage devices. The programs that are part of the system software include assemblers, compilers, file management tools, system utilites, and debuggers. The system software is installed on your computer when you install your operating system. You can update the software by running programs like "Windows Update" and "Software Update"

A word processor is an example of application software. Application software is also known as Apps. Application software is computer software that includes database programs, word processors, and spreadsheets these are all office applications, they allow us to make documents with text and pictures. there is other types of application software such as games software, games software is an "app" that you can design games on. Application software can not run with out operating software.

Software utilities are things like firewalls that protect our computers from virus. there are many types of software utilities such as firefox click and clean or Win HMR. these types of things keep our information secure and makesure know one can hack our computers or take personal information. firewalls also allow computers to preform tasks quicker because they are keeping harmful material from slowing the computers down.

Hardware components

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

RAM means ransom access memory. the RAM provides space for your computer to read and write data to be accessed by the CPU (central processing unit). The more RAM you have on your computer the faster the speed on your computer is.

devices for network connection

3G stands for third generation. it allows the signal to carry far larger amounts of data, this meant that 3G mobile phones could access the internet at reasonable speeds, it also allows you to use video calls on your phone. As 3G suggests there was 2 pervious generations before this. There are many application you can use if you have 3G such as mobile internet and mobile TV. 3G has higher data speed and enhanced audio and video streaming. To use 3G you need to subscribed to a service provider to get the network connectivity

There is also a 4G which means fourth generation is basically the extension in the 3G technology with more bandwidth and services offers in the 3G. With 4G you get ultra broadband internet access.  4G has data transmission speeds as high as100 Mbps. 4G can be used with mobile phones and wireless computers. 4G is a wireless broadband.

Bluetooth is a way of exchanging data wirelessly over short distances. Using a special radio frequency to transmit data, it creates a short range network. It is very secure and can connect up to eight devices at the same time. Bluetooth can be used for sending images, videos or music using a mobile phone with Bluetooth or a laptop with Bluetooth. Bluetooth is very secure as you have to accept a Bluetooth invitation if you want something to be sent to you or something of yours sent to others.

 

A network interface card (NIC) provides the hardware interface between a computer and a network. A NIC technically is network adapter hardware in the form factor of an add-in card such as a PCI or PCMCIA card.

Output Devices

A printer transferes text and pictures onto paper. A printer can print out in black and white or colour. a printer plugs into a usb slot. nowadays you can but a printer with a scanner attached to it.

a monitor is a screen that shows moving or still images that have been genarated by the computer and processed by the graphics card in the computer. there are two types of monitors which are CRT and LCD. a CRT (cathode- ray tube) are the most popular type of monitor and have been used for many years but they are quite bulky. An LCD (liquid crystal display) are energy eifficient and are compact, thin and lightweight.

speakers are used on a computer to give out sound. the speakers give off freaquancys that we can hear. speaks are normally built into the computer but you can also buy speakers that plug into your computer. speakers can also be used whilst you are using webcam because you will be able to hear the people you are talking to. speakers most commanly come with a volume control switch and a socket for headphones to plug into.

Storage devices

A hard disc drive is a storage device for digital data. it has one or more rotating rigid platters on a motor-driven spindle which is in a metal case. The data is enclosed magneticaly.

A memory stick is a removable flash memory card. it stores document or pictures of videos. they are small enough to carry around and can be used on any computer to transfere information.

A CD rom is a compact disc that contains data. it can only be used on a computer for visual aid of a video or on a radio for sound, it can not be written.

Different Types of Computer Systems

   

A PC is a personal computer, It is a small computer that is Based on a microprocessor that is made to be used by one person at a time.

A base unit is the main  part of the computer, it is where you incert CD's or discs.

a laptop is a portable computer that can be used whilst travelling. It is small and light enough to carry around.

 A net book is a small laptop that is smaller than a notebook. It is designed mainly for internet applications.

A P.D.A is a personal digital assistant. It is a device to store things like addresses and phone numbers.

 A mobile phone is a hand held mobile. It connects with telephone networks so that we are able to talk and text other people.

  game console is an interactive entertainment computer or computer system that produces a video display signal which can be used with a display device

 A server is a computer were all information is stored. It also runs programmes on computers that are on the same network. 

A tablet is a tablet-sized computer that also has the key features of a full-size personal computer, It is completely touch screen.

Embedded devices are small programmable chips that can be programmed to execute certain orders e.g. the control panel in an elevator is an embedded device.