CompTIA A+ Certification Core 1 (220-1101) - What Is a Computer?

The video explains the fundamental components and functions of computers, emphasizing their role in executing tasks through programs. It covers the importance of CPUs, RAM, and mass storage, and how these elements interact to run applications and save data. The video also highlights the presence of computers in various devices, from desktops to IoT gadgets, illustrating their ubiquitous nature in modern life.

What is the primary function of a computer?

• To entertain users

• To store data

• To connect to the internet

• To get tasks done

How is a CPU best described in the context of a computer?

• As the memory of the computer

• As a high-speed calculator

• As the storage unit

• As the display screen

Where is a program stored when it is running?

• In the cloud

• On the hard drive

• In the CPU

• In RAM

What is the role of RAM in a computer?

• To execute programs quickly

• To display graphics

• To store data permanently

• To connect to the internet

Which of the following is NOT essential for a device to be considered a computer?

• CPU

• RAM

• Mass storage

• Touchscreen

What additional component is necessary for a computer to function?

• A printer

• An operating system

• A graphics card

• A network card

Which of the following devices can be considered a computer?

• A washing machine

• A light bulb

• A chair

• A book