Hardware Feedback

The device in the picture is a?

• Laptop

• PC/Desktop Computer

• SmartPhone

• SmartWatch

• MainFrame Computer

The device in the picture is a?

• Laptop

• PC/Desktop Computer

• Tablet

• SmartWatch

• MainFrame Computer

The device in the picture is a?

• SmartPhone

• PC/Desktop Computer

• Tablet

• SmartWatch

• MainFrame Computer

Command line interface (CLI) requires a user to type in instructions to choose options from menus, open software and so on. There are often a number of commands that need to be typed in, for example, to save or load a file. The user therefore has to learn a number of commands just to carry out basic operations.

According to this definition, Which user is more adequate to use a CLI?.

• A programmer, analyst or technician

• The end-user who doesn't have (or doesn't need) any great knowledge of how the computer works

Graphical user interface (GUI) allows the user to interact with a computer (or MP3 player, gaming device, mobile phone, and so on) using pictures or icons (symbols) rather than having to type in a number of commands

According to this definition, Which user is more adequate to use a GUI?.

• A programmer, analyst or technician

• The end-user who doesn't have (or doesn't need) any great knowledge of how the computer works

The image is a example of?

• CLI

• GUI

• Graphical user interface

• Command line interface

Scanners are used to enter information from hard copy (for example, text documents, photographs) into a computer.

Select all option that apply

• Output

• Software

• Input

• External

• Internal

In a touch screen the user can choose an option by simply touching a button/ icon on the screen.

Select all options that apply

• Output

• Hardware

• Input

• External

• Internal

A sensor is a device that inputs data to a computer; the data is a measurement of some physical quantity that is continuously changing (for example, temperature, light, moisture, etc.). These physical quantities are analogue in nature. Since computers only understand digital data (Is and Os), the information from the sensors needs to be converted; this is done using an analogue to digital converter (ADC).

Select all options that apply

• Output

• Hardware

• Input

• Internal

• External

Radio frequency identification (REID) readers use radio waves to read and capture information stored on a tag. The tag can be read from a distance of several metres, which is one of its advantages over the barcode RFD tag system.

Select all options that apply

• Output

• Software

• Input

• Internal

• Hardware