STEM Knowledge Challenge For IEEE UTS SB

What does CPU stand for?

• Central Processing Unit

• Central Power Unit

• Computer Processing Unit

• Control Program Utility

Answer explanation

CPU stands for "Central Processing Unit." It is the primary component of a computer that performs most of the processing and control functions. It is also commonly referred to as a "processor." The CPU is responsible for executing instructions and manipulating data in a computer system.

Source: https://www.gigabyte.com/Glossary/cpu

What is the chemical symbol for water?

• H₂O

• CO₂

• O₂

• H₃O⁺

What does RAM stand for?

• Random Access Memory

• Reader Accessed Memory

• Rapid Application Module

• Randomly Allocated Memory

Answer explanation

RAM is a common computing acronym that stands for random-access memory. Sometimes it’s called PC memory or just memory. In essence, RAM is your computer or laptop’s short-term memory. It’s where the data is stored that your computer processor needs to run your applications and open your files.

Source: https://www.intel.com/content/www/us/en/tech-tips-and-tricks/computer-ram.html

Which operating system has the largest worldwide market share as of 2025?

• Windows

• macOS

• Android

• Linux

Answer explanation

Android: 43.32%

Windows: 30.28%

iOS: 14.55%

Unknown: 4.6%

OS X: 3.28%

macOS: 1.82%

Source: https://gs.statcounter.com/os-market-share

What does "GPT" stand for?

• General Prompt Transcript

• Global Professional Trainee

• Generative Pretrained Transformer

• General Processing Transformer

What does USB stand for?

• Universal Serial Bus

• United System Backup

• Ultra-Speed Bandwidth

• Universal Software Box

Answer explanation

USB, in full universal serial bus, technology used to connect computers with peripheral devices.

First introduced in 1996, the USB standard was developed by a number of American companies, including IBM, Intel Corporation, and Microsoft Corporation, as a simpler way of connecting hardware to personal computers (PCs). Before USB technology a PC typically would have one or two serial ports, a parallel port, mouse and keyboard ports, and, in some cases, a joystick port. A USB port represented a standardized way to connect a wide range of devices while offering significant advantages in speed over other connection types.

Source: https://www.britannica.com/technology/USB

What does NEM by Sarawak Energy stand for?

• New Energy Machine

• Net Energy Metering

• No Energy Malfunction

• New Energy Method

Answer explanation

Net Energy Metering (NEM) scheme is a billing mechanism that credits direct Solar Photovoltaic (PV) system owners for the electricity they add to the grid. For example, if a residential consumer has a PV system on the rooftop, it may generate more electricity than the home uses during daylight hours. Rolling out of NEM scheme in Sarawak is to promote the use of renewable energy and the conservation of non-renewable energy at the consumer level.

Source: https://www.sarawakenergy.com/customers/net-energy-metering-scheme

What does VRR stand for in display technology?

• Very Rapid Response

• Variable Refresh Rate

• Video Rendering Resolution

• Virtual Reality Rendering

Answer explanation

VRR, or ‘variable refresh rate’, as it’s known, is a key feature for getting a smooth, artefact-free picture when gaming – ensuring a clean image for both offline and competitive games.

Source: https://www.techradar.com/news/what-is-vrr-variable-refresh-rate-explained

What does AOD stand for in display technology?

• Advanced Optical Display

• Always-On Display

• Automated Output Device

• Adaptive Overdrive Display

Answer explanation

An always-on display (AOD) is a feature that allows a screen to share a small amount of information while the device itself is asleep or inactive. This often includes the date, time, battery status and any notifications you might receive while your device is locked. You can often also choose widgets to see at a glance, as well.

Source: https://www.trustedreviews.com/explainer/what-is-an-always-on-display-4264890

Which of the vehicle below is hydrogen powered?

• Toyota Hilux

• Tesla Model 3

• Hyundai Nexo

• Proton X90

Answer explanation

The NEXO is a truly one-of-a-kind hydrogen fuel cell SUV that combines cutting-edge technology and futuristic design with fantastic driving range.

Quoted from: https://www.hyundai.com/uk/en/models/nexo.html