A input device is:
Hardware devices which allow data to be entered into a computer
COMMON MISTAKE:
MEMORY STICK ISN'T A INPUT DEVICE
Hardware devices which allow data to be entered into a computer
COMMON MISTAKE:
MEMORY STICK ISN'T A INPUT DEVICE
Output Device
is the device that lets data out of the computer
Examples are:
Printer
speaker
monitors
is the device that lets data out of the computer
Examples are:
Printer
speaker
monitors
CRT monitors
CRT(cathode ray tube) monitors are heavy and they take up a lot of desk space. They have been replaced by flat-screen monitors. However some are still used in the design industry since the colour accuracy and brightness of CRT monitors is excellent, and designers need to see true-to-life colours
ADVANTAGES:
they have better accuracy and brightness
DISADVANTAGES:
They are heavy and take up a lot of desk space
ADVANTAGES:
they have better accuracy and brightness
DISADVANTAGES:
They are heavy and take up a lot of desk space
TFT monitors
A TRT monitor is a Thin-Film-Transistor
over the past few years they have come down in price
they are lighter than a CRT monitor and take up less desk space they are the replacement for CRT monitors
ADVANTAGES:
They are lighter than CRT monitors and don't pose the same risks as them
DISADVANTAGES:
The definition is not as good as CRT
over the past few years they have come down in price
they are lighter than a CRT monitor and take up less desk space they are the replacement for CRT monitors
ADVANTAGES:
They are lighter than CRT monitors and don't pose the same risks as them
DISADVANTAGES:
The definition is not as good as CRT
Multimedia Projector
Digital projectors are used in situations when a very large viewing area is required, for example during presentations, for advertising, or in your home for watching movies. A projector connects to a computer, a DVD player or a satellite receiver just like a ordinary monitor ADVANTAGES: All schools have them to project their lessons off their computer to the screen. DISADVANTAGES: Image is sometimes fuzzy and they are expensive. Laser Printer Laser printers are very complex devices, and thus expensive to buy. However they are very cheap to use. This is because they produce marks on paper using a fine dust called toner which is relatively cheap to buy. A single toner cartridge will often last for 5,000-10,000 pages of printing. ADVANTAGES: They can hold large print jobs and are faster than inkjet printers DISADVANTAGES: They are very expensive to buy |