IT Basics

What is Human-computer interaction?

• a field of study that looks at how computers and other kinds of technology interact with humans.

• a process where a design team takes on the needs of the end user at every phase of the process in human technology.

• measuring how much time it takes the computer to complete a task.

• how happy the user is with how the computer functioned.

Answer explanation

Human-computer interaction (HCI) is primarily a field of study focused on how humans interact with computers and technology, making the first answer choice the correct one.

Which of the following best describes the goal of Human-computer interaction?

• To increase the processing speed of computers.

• To improve the efficiency and effectiveness of user interactions with computer systems.

• To develop new programming languages.

• To enhance the physical design of computer hardware.

Answer explanation

The goal of Human-computer interaction is to improve the efficiency and effectiveness of user interactions with computer systems, ensuring that users can achieve their tasks easily and intuitively.

What is a key component of Human-computer interaction?

• Creating more complex algorithms.

• Developing faster processors.

• Understanding user needs and designing interfaces accordingly.

• Increasing the storage capacity of computers.

Answer explanation

A key component of Human-computer interaction is understanding user needs and designing interfaces accordingly. This ensures that technology is user-friendly and meets the requirements of its users, enhancing overall interaction.

What is a BIT?

• The largest unit of digital information.

• A positive or negative value.

• The smallest unit of digital information.

• Text by using 1s and 0s as stand-ins for physical signals, such as magnetic or electrical charge.

Answer explanation

A BIT is the smallest unit of digital information, representing a binary value of either 0 or 1. It is fundamental in computing and digital communications, distinguishing it from larger units like bytes.

A piece of information that can be stored and manipulated by a computer

• Structured Programming

• Computer

• Data

• Programming

Answer explanation

The correct answer is 'Data' because it refers to pieces of information that can be stored and manipulated by a computer, unlike the other options which relate to programming concepts or the computer itself.

A measure of how many pixels wide and tall each frame of a digital video is.

• Bitrate

• Resolution

• Frame rate

• Aspect ratio

Answer explanation

The measure of how many pixels wide and tall each frame of a digital video is referred to as resolution. It defines the clarity and detail of the video, unlike bitrate, frame rate, or aspect ratio.

Henry is setting up an old computer and needs to know the standard resolution for VGA mode. What is it?

• 1600x1200

• 1024x768

• 640x480

• 800x600

Answer explanation

The standard resolution for VGA mode is 640x480. This resolution is commonly associated with VGA graphics and is the lowest resolution in the provided options.

SpongeBob is an example of what?

• VIDEO

• SPONGE

• GIF

• A square yellow sponge named SpongeBob SquarePants he lives in a pineapple with his pet snail, Gary, in the city of Bikini Bottom on the floor of the Pacific Ocean. He works as a fry cook at the Krusty Krab.

Answer explanation

SpongeBob is a popular character often depicted in GIFs, which are short animated images. While he is a sponge, the context of the question suggests the focus is on his representation in digital media, making 'GIF' the correct choice.

Graphic designers are creative individuals who design images and illustrations for a wide variety of purposes, including ads, logos, emails, marketing material, websites, social media, and mobile apps.

• True

• False

Answer explanation

The statement accurately describes graphic designers as creative individuals who create images and illustrations for various purposes, confirming that the answer is True.

Video production specialists are instrumental in the success of many companies today. They create instructional videos, marketing material, commercials, and much more.

• True

• False

Answer explanation

True. Video production specialists play a crucial role in creating various types of content, including instructional videos and marketing materials, which are essential for the success of many companies.