You develop an app, and you don’t want anyone to resell it or modify it. This is an example of: A an operating system.

B
open source software.

C
proprietary software.

Jessie has received a contract to build a real-time application for a baker. however, the baker doesn't want to invest too much money. his only requirement is that he wants the customers to know which cupcakes are available at what time and in what quantity. so his core requirement is that the details of product should be in real time. what platform can jessie use to develop this application?

The forerunner to cell phones, pdas, and smartphones was

Visually impaired individuals generally rely on the for navigation. thus, designers need to ensure that mouse-specific inputs, such as pointing, clicking, and hovering, can be done without a mouse.