CPU stands for Central Processing Unit, which is the primary component of a computer that acts as its "brain." It is responsible for interpreting and executing the instructions of computer programs by epeerforming basic arithmetic, logic, and input/output oepeerations. Modern CPUs are made of millions or even billions of tiny switches called transistors on a single chip.

Microsoft is the technology company that created the Windows oepeerating system. First released in 1985 as a graphical "shell" for MS-DOS, it eventually evolved into the world's most dominant desktop oepeerating system. Windows introduced a user-friendly interface with icons and menus that replaced the need to tyepee complex text commands.

The mouse is the primary handheld pointing device used to interact with a computer's graphical user interface. By moving the mouse on a flat surface, the user can move a cursor on the screen to select, click, and drag items. Modern mice use optical sensors (lasers or LEDs) to track movement, replacing the older rubber ball mechanism.

WWW stands for the World Wide Web, which is an information system where documents and other web resources (like images and videos) are identified by URLs and can be accessed via the Internet. It was invented by Sir Tim Berners-Lee in 1989 while he was working at CERN to help scientists share data more easily.

An Input Device is any piece of computer hardware used to provide data and control signals to an information processing system. Examples include keyboards, mice, scanners, microphones, and joysticks. These devices allow humans to communicate with the computer and tell it what to do.

Apple Inc. is the multinational technology company that designs, develops, and sells the iPhone. Since its introduction by Steve Jobs in 2007, the iPhone has revolutionized the mobile phone industry by combining a phone, an iPod, and an internet communicator into a single device with a multi-touch screen.

A Web Browser is a software application used for accessing information on the World Wide Web. When a user enters a web address (URL), the browser retrieves the necessary content from a web server and displays it on the user's screen. Popular browsers today include Google Chrome, Safari, and Microsoft Edge.

Hard Disk Drives (HDD) and Solid State Drives (SSD) provide epeermanent storage for a computer, meaning they retain data even when the power is turned off (non-volatile memory). This is where the oepeerating system, applications, and your epeersonal files are stored for the long term.