APcomp Quiz

Logic board/motherboard

The central circuit board of the computer; sends signals and distributes electricity. Processing

Central processing unit (CPU)

Carrie out instructions and performs calculations

Operating system (OS)

The main control program of the computer, used to run apps. Processing

HDD and SDD (ROM)

Used long term data/storage. Storage

Optical disk drive (ODD)

It uses laser light to read or right data. Ex: CD or DVD. Storage

Monitor/diaplay

Display of a computer. Output

Graphics processing unit (GPU)

Renders images and videos by performing calculations. Processing

Sound card

Can convert data into physical audio. Output

Keyboard

Pressing keys transfers signals to the computer. Input

Mouse (or trackpad/touchpad)

Translates hand movements or clicks into digital signals. Input

Memory(RAM)

Can hold short-term data/memory. Storage

Speakers

Transforms electrical audio signals into actual sound. Output

What is computer science?

The study of computationa

CAPTCHA

A security challenge that blocks automated blors when letting humans pass

Nondeterminism algorithm

An algorithm that can give different results each time.

Ubiquitous computing

A model where technology fades into the background and works everywhere

Core

An individual processing unit inside a computers CPU

Megabyte (MB)

A unit of storage (less than GB and TB)

Gigabyte GB

A unit of storage, more than a MB but less than a TB

Terabyte (TB)

Unit of storage, larger than MB and GB

Bit

The smallest, most basic unit in computing (represented as 1 or 0)

Megabit (Mb)

A unit of digital data, 1 mil bits

Megahertz (MHz)

A unit of frequency, cycles per sec. Smaller than GHz

Gigahertz (GHz)

A unit of frequency/cycles per second. Larger than MHz at

Pixel

The smallest unit on a display

Frame (per second)

The number of images rendered per second

Decibel

A unit for the loudness of a sounds

Watt

A unit of electrical power, representing the speed of energy

Nit

A unit of screen brightness/luminance