CSC101 Section 3.1 - 3.5

The arithmetic logic unit (ALU) and the control unit.

Resistive and capacitive touchscreens.

A server is a computer that delivers items like web pages, documents, or videos to other computers over a network, typically having no keyboard or screen.

Cache is a small, fast memory within the CPU that provides ultra-fast access to currently-needed instructions and data.

A mouse allows a user to move a pointer on the screen and select objects by clicking buttons.

A smartphone is a pocket-sized mobile phone that also has computer functionality, able to run various applications like web browsing.

A printer produces output on a physical medium, such as paper.

A data projector displays an enlarged image from a laptop onto a screen.

A tablet is a specialized portable computer used for both output and input, typically about the size of a book.

An inkjet printer sprays small drops of ink to create images, while a laser printer uses a rotating ink drum charged by a laser.

Computer speakers convert electrical signals to music, sound, or speech.

A PC is typically used in a home or office with a keyboard and screen, while a laptop is portable, smaller, and operable from battery power.

Servers, PCs, laptops, tablets, and smartphones.

Memory (RAM) holds data temporarily and is volatile, while a drive stores data permanently and is non-volatile.

A keyboard is an input device that allows a user to type characters into a computer.

The CPU runs program instructions and controls other hardware; it is often referred to as the computer's brain.