1 Computer Hardware Foundations Free Online FlashCards

What does the CPU do?

It executes program instructions and processes data.

How do an HDD and an SSD store data differently?

An HDD stores data on rotating magnetic disks; an SSD stores it in flash memory and has no spinning disks.

What makes a device a peripheral?

A peripheral is a device connected to a computer to provide input, output, or additional functions.

How does an inkjet printer put an image on paper?

An inkjet printer places tiny droplets of liquid ink on paper.

What happens to a saved file when you open it?

The computer reads the file from storage into RAM. The CPU then processes instructions and data from RAM.

What should you do before working inside a computer?

Shut down the computer and disconnect power sources before opening it or installing internal parts. Do not work inside powered equipment.

What is RAM’s role, and what happens to its contents when power is off?

RAM temporarily holds the data and instructions the CPU is actively using. Its contents are normally lost when the computer is turned off.

What is the main role of computer storage?

Storage keeps files and programs when the computer is turned off.

What does the motherboard do?

It connects components and provides pathways for them to exchange data. Its supported sockets, standards, and connections constrain which parts are compatible.

What does the PSU do, and what is one essential safety rule?

The PSU converts wall power into regulated voltages for components and supplies them through cables. Never open it; internal parts can retain hazardous electrical energy.

What does a GPU do, and where may it be located?

A GPU creates images for a display. It may be built into the CPU or installed as a motherboard expansion card.

How does a laser printer form an image on paper?

A laser printer uses toner powder and heat to form an image on paper.