what is the working of input devices
Answers
Answer:
An input device is simple something which inputs information in to a computer. Therefore, for a device to be labelled an 'input device', data must travel from the device to the computer where it is used in some way. Examples of input devices are: Keyboard (takes input from the user through key presses)
Answer:
Understanding the difference between input and output devices is probably the simplest concept in computer science. An input device is simple something which inputs information in to a computer. Therefore, for a device to be labelled an 'input device', data must travel from the device to the computer where it is used in some way.
Examples of input devices are:
Keyboard (takes input from the user through key presses)
Microphone (takes audio information from the user and converts it in to a digital format the computer can use)
Mouse (Inputs movement information from the user to control something)
Scanner (digitises a the appearance of a physical document and inputs the data in to the computer)
An input device used to be defined as something which would enable a user to input information or control a system externally. However, many exam boards are now beginning to consider USB Storage Media and similar devices as input devices because they can technically input data in to a computer. Look out for this distinction in any questions which are asked in the exam.
The 2014/2015 IGCSE Computer Science specification requires that you also understand:
1) How some input devices work
2) How they are used in real life scenarios
The devices you need to know about are shown below