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describe the hardware and software used to create and edit g
Transcript of describe the hardware and software used to create and edit g
Section One: HARDWARE
This Section Includes:
Graphics Cards Features
USB Storage Devices
A graphics card is responsible for processing and sending images which are displayed on your computer monitor. Computer systems have a built in graphics card which is located in the motherboard, however, users often decide to purchase a sepearte graphics card. The reason for this is it's more powerful than the one already situated on the motherboard. The main purpose of a graphics card is to allow the graphics of images to be more clear on the computer monitor. There are many types of graphic cards available which all have different features allowing the price range to go from £10 to £1,300. However, when deciding which graphics card to purchase; the user must take into consideration the capacity of their monitor as the graphics card must fit the highest resolution of the screen.
Graphics Card Features
Graphics Cards: Impacts On Graphics
The impact on graphics that a Graphics Card has is that it allows the graphics of an image to look of a better quality on the display screen. The higher capacity of graphics card you have, the better quality a final image will be.
Computer hardware refers to the physical parts
or components of a computer.
RANDOM ACCESS MEMORY
RAM- Random Access Memory
Impact on Graphics
Impact On Graphics
RAM is a piece of hardware that is located on a omputer's motherboard. Every time you open a program from your hard drive, it’ll be loaded into your computers RAM as it’s a lot faster to load from the RAM instead of the computer's hard drive. Effectively, the more RAM you have, the quicker your computer will function.
Upgrading Computer memory (RAM) is one of the quickest, most efficient and most cost-effective ways to boost computer performance.
There are many forms of RAM. One example is DDR2.
Cache stores recently used information so that it can be quickly accessed at a later time. Computers incorporate various different types of caching in order to run more efficiently, as a result improving performance.
Cache memory is extremely fast memory that is built into a computer’s central processing unit (CPU), or located next to it on a separate chip. The CPU uses cache memory to store instructions that are repeatedly required to run programs, which consequently improves overall system speed.
A level one cache, which has a small memory inside of the CPU, is responsible for directing access to the most commonly used programmes. This saves time as the processor can get data from the cache memory, as opposed to going back to the hard disk and RAM repeatedly. This is how is how it improves the speed of graphics. The better your cache memory, the faster the processor can collect data, allowing for quicker translation of graphics.
If you're constantly loading and using various programs to help you edit images, it can be strenuous on your computer consequemtly causing it to run more slowly. This is further enhanced if you're also using the internet to gather these images. However, by using a substantial amount of RAM will speed up this process and make it easier for the graphics designer.
Example: More efficient video editing
Because video files are very large, you'll not only need a big hard drive to store the file, but a quick processor and lots of RAM help speed things up. Video editing software like iMovie and Adobe Premiere typically recommend 64MB of RAM, but once again, more is better. 256MB or more should enable you editing without waiting for your computer's hard drive to catch up.
The central processor of a computer is known as the CPU (central processing unit). The CPU is the hardware inside a computer which carries out instructions from computer programs. The CPU controls everything within a computer.
The main purpose of a central processing unit is to carry out computing calculations for a computer. Put simply, the Central Processing Unit is sendt data, then from that
data an output is created which makes the computer do something.
IMPACT ON GRAPHICS
The CPU affects how quickly the graphic card receives information and this determines how fast the computer can perform. If the processor is slow, it will take longer to load images.
A Flash Card is an Electronic Flash Memory Data Storage Device that is used for storing digital information. Flash Cards are used in Memory sticks, Digital Cameras, Mobile Phones, MP3 Players and other small portable devices. Types of Flash/ Memory Cards include SD cards, Compact Flash Cards, Mini SD and xD Picture Cards. Memory Cards are usually read by connecting the device containing the card to a computer or by using a USB Card Reader.
To read a CD, you need a CD-ROM player. All CD-ROMs conform to
a standard size and format, so you can load any type of CD-ROM into
any CD-ROM player. In addition, CD-ROM players are capable
of playing audio CDs, which share the same technology.
Most computers come equipped with CD-ROM drives,
making it one of the most popular media available.
A CD ROM is a pre-pressed compact disc which contains data. It is an
adaptation of the CD that is designed to store computer data in the
form of text and graphics, as well as hi-fi stereo sound. ''ROM'' sands for
'Read Only Memory'. Information on the CD cannot be altered or erased.
A hard drive is a mass data storage device used for storing and
There are two ways to measure the performance of a hard disk:
Data Rate: The rate is the number of bytes per second that the drive can deliver to the cpu.
Seek Time - The time between the cpu requesting a file and the first byte of data arriving at the cpu.
RAM is a form of computer data storage. RAM is the most common type of memory found in computers.
IMPACT ON GRAPHICS
IMPACT ON GRAPHICS
IMPACT ON GRAPHICS
CD ROMS store computer data in the form of text and graphics.
The use of CD ROMS makes it easy to transfer graphics from
one device to another. We can copy data from a computer onto a CD ROM, then we can transfer the data to another computer through the use of the CD ROM.
Flash Cards allow graphics/images to be easily transfered from one device to another. The card can be easily removed from a device, e.g. A
Camera, then inserted into a card reader. This allows a very effective transfer of the pictures stored on the camera to the computer.
The size of a computer's hard drive will effect how much data it can store. Images can take up a lot of space on a computer's hard drive. In order to store a large number of images a suitable sized hard drive will be required.
Section Two: SOFTWARE
This Section Includes:
IMPACT ON GRAPHICS
UNIVERSAL SERIAL BUS
A USB allows data transfer between itself and another device.
For Example; if you have a file saved on your laptop and want to transfer the data onto your computer you can do so by using a USB stick.
USB's allow files/images to be easily transferred from one device
to another. A USB can be easily removed from a device, e.g. A
Laptop, then inserted into another device e.g. a computer.
This allows a very effective transfer of the pictures stored on
the laptop to the computer.
An input device is any peripheral that is used to provide data into a computer system. Examples of input devices include;
Images are stored in a sequence of instructions
• Images can be reduced or enlarged without losing quality
• Files do not use a lot of memory
Vector images are made from shapes such as circles
• Not all software is compatible with vector-based images
Digital Cameras and Card Readers
Often people who work with graphics need to transfer pictures from a camera to the computer system. There are 4 methods of doing this.
METHODS OF TRANSFER
Most digital cameras have a USB cable that will connect with a computer so that pictures can be transfered from the camera onto the computer system.
There are several types of of card available, all of different sizes. Virtually every camera uses a flash card to store the pictures that are taken on the camera. Types of card include:
- Secure Digital Card
- Compact Flash Card
- MultiMedia Card
Cards allow very quick and effective data transfer of pictures from a camera to a computer
Usually only one type of card will fit he camera, but often computers have card readers which will accept many types of card
Some cameras now offer 'WiFi radio connection'. This removes the need to use a USB cable or a Memory Card
for data transfer.
Some digital cameras use a 'cradle' to attach them to a computer and this is how the pictues are transfered ono the coputer system. This is a quick and easy method of picture transfer and often cradles charge the camera too.
• Images are represented as a sequence of dots called pixels
• Each dot is stored separately and uses a lot of memory
• Image loses quality when enlarged•
Bitmap graphics can be created when a picture is scanned into a computer system using a scanner or from a camera.
A graphics tablet makes
working with graphics much easier for users.
If a web designer was required to sketch out ideas it would be much easier to do so with a graphics tablet and pen than it would with an ordinary mouse.
A camera with a lot of pixels is useful if you want to be able to work with small parts of the picture when editing.
The camera lens in the component that that provides the image to the cameras CCD which convertis it into the digital image. If a good quality image isn't received, a good quality picture cannot be produced. There are many cameras on the market selling for a wide range of prices.
Scanners are a good way of inputting paper images into a computer. The scanner optically scans images, text, or handwriting, and converts it to a digital image
Software means computer 'instructions' or 'data'. The programs that run on a computer are 'Software' and there are many programs that can be used when creating and manipulating graphical images.
EXAMPLES OF VECTOR DRAWING PACKAGES
CorelDRAW is a graphic design software and is a vector graphics editor.
'CorelDRAW Graphics Suite X7' is the latest version and includes;
Vector illustration and page layout
Versatile drawing and tracing tools
Professional photo editing
Easy website design
AutoCAD is a design and documentation software
AutoCAD includes lots of design tools that can enhance the production of graphical images and objects.
Microsoft Visio is a diagramming and vector
Microsoft Visio 2010 for Windows is
Standard, Professional and Premium
Examples of Bitmap
Corel Paint Shop Pro
Corel Paint Shop Pro
Corel Paint Shop Pro is a photo-editing software
Paint Shop Pro's features include;
Powerful, pro-quality photo editing
Amazing instant effects
Microsoft Paint is a simple graphics painting program
The program opens and saves files as Windows bitmap.
This is a type of file format used to store bitmap
Photo manipulation software programs are bitmap programs equipped with tools that allow specialised manipulating of photographed images.
Adobe Photoshop is a graphics editing program
Adobe Photoshop is released in
Adobe Photoshop Extended
the Extended edition include extra 3D image creation, motion graphics editing, and advanced image analysis features
Corel Photo-Paint is a bitmap graphics editing program
The program can open and convert vector formats
Corel Photo-Paint's advanced image editor includes fatures such as:
Photo retouching and enhancement
Bitmap creation and digital painting
RAW image editing
The purpose of other graphics related software is to help people in the graphics industry work more effectively. This can be done through the use of many utility programs that are on offer. These include;
Cradles are an easy and effective way of transferring photo's from a camera to a computer. The device is also multi-purpose as they often charge your camera at the same time as transferring your photos.
Wireless data transfer is a fast process which allows effective transfer of images from one device to another
Data transfer through a USB cable is a popular method used by many people. It allows easy data transfer of images from a camera to a computer.
Photo Gallery tools help you organise and edit your photos
Photo Galleries also allow you to create slideshows of your images and share them online if you wish to do so
There are software programs available that can convert graphical images from one format to another.
Several graphical apps are available for file conversion and often professionals simply pick their favourite application to save an image as a new file type
An image viewer is a computer
program that can display stored graphical
images; it can often handle
various graphics file formats.
Common Image Viewers Include;
- Windows Explorer - file manager with basic built-in functionality
for image viewing
- Windows Picture and Fax Viewer in Windows XP
FOR THE FIRST SECTION OF THIS PREZI I AM GOING TO DISCUSS HARDWARE. I AIM TO INFORM YOU ABOUT DIFFERENT TYPES OF HARDWARE AND HOW THEY RELATE TO GRAPHICS.
Throughout this presentation you have been informed about the impact of graphics on both hardware and software. As you will have learned there are several factors that influence graphics and users have to take these into consideration when purchasing both hardware and software.
- Plenty of tools: Photo-Paint offers a full set of selection, retouching, and painting tools for manual image manipulations.
- Automated commands: It includes convenient automated commands for a few common tasks, such as red eye removal.
- Its greatest strength is its integration with CorelDRAW and the rest of the Corel Graphics Suite. If you use CorelDRAW to create and edit graphics, you’ve probably got Photo-Paint installed on your computer, and you’ll feel right at home using the product.
- Not available on its own: Photo-Paint is available only as part of the CorelDRAW Graphics Suite
- With Adobe Photoshop, one can quickly and easily import videos and photos into the software. Once imported, everything is neatly organised on the screen. This makes it easy to handle numerous videos and photos. Additionally, the proper organization of the workspace makes it easy to find editing tools and other features.
- •Quick Editing: Most of the edits regularly done on photos can be completed with a single click. For example, it is possible to automatically whiten teeth or reduce red eye with the simple click of a button. On top of that, no professional training is needed to complete complex tasks like adjusting skin tone.
- The main disadvantage of Adobe Photoshop is its high price tag.
Adobe Photoshop costs much more than most of the other photo-
editing software. If you don’t plan on using the software professionally,
it is not worth the high cost.
- Despite the fact that its quick-edit features are
simple to use, this software was not built for the novice user. It
is photo-editing software designed for
professionals who edit photos regularly
Includes several variations per edition which also vary in price.
Viso for Mac doesn't exist, neither does Visio for Linux. It only works with Windows operating systems.
Viso doesn't support collaborative editing without additional products.
The price may seem unreasonable compared to similar packages that offer similar tools.
Most professionals are already familiar with Visio.
The help and support available for this application is astounding.
Because the suite consists of several applications, there are an
overwhelming number of tools and features; it may take you quite
a while to learn how to use them all to achieve maximum results.
Menus are crowded with options and some of the tools are gimmicky and unnecessary
Affordable, yet full-featured and flexible; offers a nice mix of fun and serious tools.
Combines photo editing, retouching, painting, drawing, and image management into one package.
Good for intermediate users
Tools are simple to use
Features are basic compared to other packages.
Wouldn't be suitable for creating high quality graphics.