Thursday, 12 February 2015
Tuesday, 10 February 2015
Year 12, Unit 2, Task 6b, M2
In this report I will compare the HP computer with an Apple Mac computer.
Although the HP computer is already pricey the Apple Mac can be well over £1000 with its current updated version being just under £2000. This is quite expensive for a computer system even though it is highly updated. However the Apple Mac computers can run faster and this is because they have newer equipment compared to the HP software.
However with the Apple Mac computers, the keyboard is more expensive compared to the HP keyboard due to it being wireless and newer and more efficient. The price for the Apple keyboard is can range from any price from around £35.00 to over £70.00. The HP keyboard isn't as expensive as the wireless one but it is more practical as you can plug it into the computer through the USB whereas you can miss place a wireless keyboard.
To conclude, in my opinion, the Apple Mac computer is better because it has more features and the use of it is more efficient when dealing with different things. The HP may be cheaper but the hardware and the products aren't as good and updated as the ones that the Apple Macs has and although the Apple Mac may be expensive it is useful!
Although the HP computer is already pricey the Apple Mac can be well over £1000 with its current updated version being just under £2000. This is quite expensive for a computer system even though it is highly updated. However the Apple Mac computers can run faster and this is because they have newer equipment compared to the HP software.
However with the Apple Mac computers, the keyboard is more expensive compared to the HP keyboard due to it being wireless and newer and more efficient. The price for the Apple keyboard is can range from any price from around £35.00 to over £70.00. The HP keyboard isn't as expensive as the wireless one but it is more practical as you can plug it into the computer through the USB whereas you can miss place a wireless keyboard.
The mouse for the Apple Mac, however isn't as expensive compared to its other products that can be bought for the computer. The price for an Apple Mouse is anything from around £35.00 to under £60.00. Although the price may seem high still the efficiency of the mouse is good because it was made for the computer and this goes for the HP mouse as well; they wouldn't be as good if they were being used in a different branded computer.
Year 12, Unit 2, Task 6a, P4
In this report I will recommend a computer system for the marketing department to purchase.
I will recommend the HP computer as it fits the standards that can suit a user into what they would want to use the computer for. It has a wide range of different hardware appliances that would become useful in a functional manner. These computers are a decent price for a computer especially for how they work and range from anything around £500.00 to over £1000.
The keyboard that I would use for the HP computer would be the HP branded keyboard that can either be bought separately but can also come with the computer itself. It works best than other keyboards because it was made for the computer itself and with it being under the same brand it works well with its functions and its process. A standard HP keyboard is around £13.00 however, if a wireless is wanted then it can be around £30.00
The mouse of which I would recommend for the HP computer would be the HP mouse. My reasoning behind this is because it would fit perfectly for the computer as it is what it is made for (just like the keyboard!), and there is a specific USB slot in which it should go in. This is also not that expensive to buy for the computer. The price for a standard mouse ranges from £6-£11 (USB) or a wireless one being around £35-£40.
Overall, I have recommended this computer and its components as its not a computer that is too expensive and its components fits with the computer as they are all from the same brand meaning that they will work together effectively.
Friday, 6 February 2015
Year 12, Unit 1, Task 4, P5, M2
Above is my comment and Emily's post for her Dummies Guide. This is for P5.
Below I have changed my guide for dummies and have added colour and enlarged the text where appropriate.
Monday, 2 February 2015
Year 12, Unit 30, Task 8b, D2
In this report I will be describing and evaluating the impact that file format, compression techniques, image resolution and colour depth have on file size and image quality.
The purpose of any file format is to store data and to reduce the amount of space the file takes up on your hard drive, however some formats do this at a cost of quality. For example, JPG reduces file size by lowering quality (LOSSY formats). Other formats, such as PSD, don't alter quality however they do not offer as much savings in terms of file size.
In Photoshop, the files you save an image under is either PSD or PPD. This is because Photoshop allows you to change and edit specific layers however, the image file size is quite large which means you have to Adobe Photoshop to open them or another type of Adobe software.
GIF; graphic interchange format, is a type of bitmap format used for animations often on presentation and websites. It has a range of colours of around 256 which is an advantage as the file size stays small however it is hard reproducing the images.
JPEG, which is most commonly used format, is used a lot when taking pictures and downloading images, from the internet etc. There is a disadvantage with this format as the image quality is not very good especially when stretching the image as it can become pixelated or when zooming into the image as it is fit for a smaller file size.
There are two different ways in which files can be compressed and these compression techniques are LOSSY and LOSSLESS and each of these methods affects images. When compressing the image through LOSSY, the image loses some of the image data and results in pixels. This is so the file can be used more efficiently and at a lower file size. The amount of data loss is often adjustable. The high compression rate the smaller the output file but the image quality will be of a poorer standard.
LOSSLESS is the second compression technique and this is when you compress the image and expect it to be the same as before. Therefore you want the output high-resolution as this is used when compressing high-quality files for example school work. There are different ways of compressing the image to your standard however this effects the file size and can increase or decrease to your liking.
Image resolution can depend on the camera used or what the intended use of the image is. The amount of pixels that make up an image is its resolution therefore the more pixels used, the more quality and detail. A large file often indicates that the file has better resolution therefore a smaller file indicates lower resolution. Therefore the higher the number of pixels used in an image then the more space it will need to be stored on and camera or phone etc and for this a large memory stick will be needed.
The maximum amount of bits used in an image or hard drive is its colour depth. Depending on the amount of bits results in the different bits per pixel (BPP). Bits are worked out 2 to the power of 8, 16 or 24. If multiplied you get whats called a 'true colour'. With a large amount of bits, the colour and shading will be endless giving an infinite number of colours and of high-resolution. Therefore the file size of higher bits will be bigger as there are more colours per pixel. Colour depth is an important factor when coming to high quality image as the depth of the colour directly affects the file size with the better quality affecting larger file sizes, however will consist of much more detail.
Overall, file format have the better resolution than others. I have came to this judgement as although the file size of the image will be affected there are techniques which can decrease the file size with a compromise of the image quality. Also, colour depth is always essential when producing high quality images but the more colours you have the higher the file size will be.
The purpose of any file format is to store data and to reduce the amount of space the file takes up on your hard drive, however some formats do this at a cost of quality. For example, JPG reduces file size by lowering quality (LOSSY formats). Other formats, such as PSD, don't alter quality however they do not offer as much savings in terms of file size.
In Photoshop, the files you save an image under is either PSD or PPD. This is because Photoshop allows you to change and edit specific layers however, the image file size is quite large which means you have to Adobe Photoshop to open them or another type of Adobe software.
GIF; graphic interchange format, is a type of bitmap format used for animations often on presentation and websites. It has a range of colours of around 256 which is an advantage as the file size stays small however it is hard reproducing the images.
JPEG, which is most commonly used format, is used a lot when taking pictures and downloading images, from the internet etc. There is a disadvantage with this format as the image quality is not very good especially when stretching the image as it can become pixelated or when zooming into the image as it is fit for a smaller file size.
There are two different ways in which files can be compressed and these compression techniques are LOSSY and LOSSLESS and each of these methods affects images. When compressing the image through LOSSY, the image loses some of the image data and results in pixels. This is so the file can be used more efficiently and at a lower file size. The amount of data loss is often adjustable. The high compression rate the smaller the output file but the image quality will be of a poorer standard.
LOSSLESS is the second compression technique and this is when you compress the image and expect it to be the same as before. Therefore you want the output high-resolution as this is used when compressing high-quality files for example school work. There are different ways of compressing the image to your standard however this effects the file size and can increase or decrease to your liking.
Image resolution can depend on the camera used or what the intended use of the image is. The amount of pixels that make up an image is its resolution therefore the more pixels used, the more quality and detail. A large file often indicates that the file has better resolution therefore a smaller file indicates lower resolution. Therefore the higher the number of pixels used in an image then the more space it will need to be stored on and camera or phone etc and for this a large memory stick will be needed.
The maximum amount of bits used in an image or hard drive is its colour depth. Depending on the amount of bits results in the different bits per pixel (BPP). Bits are worked out 2 to the power of 8, 16 or 24. If multiplied you get whats called a 'true colour'. With a large amount of bits, the colour and shading will be endless giving an infinite number of colours and of high-resolution. Therefore the file size of higher bits will be bigger as there are more colours per pixel. Colour depth is an important factor when coming to high quality image as the depth of the colour directly affects the file size with the better quality affecting larger file sizes, however will consist of much more detail.
Overall, file format have the better resolution than others. I have came to this judgement as although the file size of the image will be affected there are techniques which can decrease the file size with a compromise of the image quality. Also, colour depth is always essential when producing high quality images but the more colours you have the higher the file size will be.
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