CURRENT AND EMERGING TECHNOLOGIES

The Pros and Cons of Common Input Devices and Streaming

The Pros and Cons of Common Input Devices and Streaming

Keyboards

Advantages

Disadvantages

You don’t need much training to use a keyboard. They can’t be used to create diagrams or images.
Skilled typists can enter a lot of data very quickly. Unskilled typists can take a long time to enter data.
They can be very cheap and often come with the computer. It can lead to health problems like repetitive strain injury (RSI)

Scanners

Advantages

Disadvantages

A hard copy of an image can be transformed into an electronic file. Some visual quality is lost in the transfer process.
The reproduction is very faithful. The electronic file takes up a lot of memory space on the hard disk.
The images can be edited or enhanced with a graphics application. Scanning equipment, especially the glass, is quite delicate and can be broken easily.

Joysticks

Advantages

Disadvantages

They give a good gaming experience, especially in games where precise hand control is required e.g. flying or racing games. Over enthusiastic handling can result in breakage.
They are often ergonomically designed i.e. designed specifically for the shape of the hand. Some people find them more difficult to operate than a regular mouse.
Joysticks can be designed for a specific game in mind. They can be quite expensive.

GCSE ICT - joystick

————————————————————————

Streaming

Advantages

    • You can choose from a huge online menu and start watching the material then and there.
    • You can pause the programme or clip and return to it later.

Disadvantages

    • A slow speed connection will cause the player to pause. ‘Buffering’ occurs when you have to wait for the media player to collect more data.
    • You can only stream material when you are online.

The pros and cons of downloading media content:

Advantages

    • Once the file has been downloaded you can watch it whenever you want.
    • There is no limit to how many files you download, as long as you have the storage space.
    • Once the file has been downloaded, the viewing/listening experience will be free from connection problems.

Disadvantages

    • Video and music files take up a lot of space on your hard disk.
    • Downloading can take some time depending on the quality of your connection.
    • There is the possibility that you are downloading harmful files (viruses) or inappropriate material without knowing.