Computing and Basic Science Quiz

The first iPhone was announced by Steve Jobs in January 2007 and released on June 29, 2007. The 2005 and 2006 dates are too early, while 2008 would be the iPhone 3G model.

CPU is indeed an abbreviation for Central Processing Unit, which is the primary component of a computer that performs most of the processing inside the computer. The CPU executes instructions and processes data, making it the 'brain' of the computer.

Nintendo was founded in 1889 as a playing card company in Japan, making it much older than 1900. The statement claims it was founded after 1900, which is incorrect. Therefore, the answer is False.

Infrared light has longer wavelengths than visible light, which is why it's invisible to the human eye. The electromagnetic spectrum places infrared just beyond visible red light, with wavelengths extending from about 700 nanometers to 1 millimeter.

Firefox, Opera, Chrome, Safari, and Internet Explorer (referred to as 'Explorer') are all web browsers used to access and navigate the internet. Each provides a interface for viewing websites and web applications.

Gold is actually an excellent conductor of electricity, which is why it's used in high-quality electronic connectors and circuit boards. The statement claims gold is not a good conductor, which is false. Therefore, the correct answer is False.

Atomic bombs do work by nuclear fission, specifically by splitting uranium or plutonium nuclei, releasing enormous energy. This is the principle behind the first atomic bombs and differentiates them from hydrogen bombs which use fusion.

The original Sony PlayStation used CDs, not cartridges, to play games. This was a key difference from competing consoles like Nintendo 64 which used cartridges. The statement claims cartridges were used, which is false.

Keyboards are indeed input devices that allow users to enter data and commands into a computer. They send keystroke information to the computer, making them fundamental input peripherals.

WWW stands for World Wide Web, the system of interconnected documents and resources linked by hyperlinks on the internet. The other options are incorrect abbreviations not related to web technology.

DNA is indeed the abbreviation for Deoxyribonucleic acid, the molecule that carries genetic instructions for the development, functioning, growth, and reproduction of all known living organisms.

SMTP (Simple Mail Transfer Protocol) is the standard protocol for email transmission and traditionally uses port 25. The other ports listed are for different services: port 21 is for FTP (File Transfer Protocol), port 23 is for Telnet (remote login), and port 80 is for HTTP (web traffic).

The iPhone 4 (released in 2010) was a 3G device, not a 4G device - it didn't support LTE or 4G networks which weren't widely available at launch. The iPhone 4 did include a front-facing camera (introduced for FaceTime), HD video recording (720p), and multitasking capabilities added in iOS 4.

SSL stands for Secure Sockets Layer, a cryptographic protocol designed to provide secure communication over computer networks. The other options are incorrect: SSL involves 'sockets' (network connection endpoints), not LAN; and it's a protocol layer, not specifically software.

The first networked email was sent by Ray Tomlinson in 1971 on the ARPANET system, the precursor to the modern Internet. While ARPANET was established in 1969, email as we know it wasn't implemented until 1971, and the World Wide Web wasn't invented until 1989.

BIOS (Basic Input/Output System) is firmware stored on a motherboard, not a battery type. CMOS (Complementary Metal-Oxide-Semiconductor) refers to memory technology that's often battery-backed, while NiMH (Nickel-Metal Hydride) and Li-ion (Lithium-ion) are actual rechargeable battery chemistries used in laptops and portable devices.

SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending email between mail servers. The other protocols serve different purposes: FTP is for file transfers, SSH is for secure remote access, and POP3/IMAP are protocols for receiving (not sending) email.

BIOS (Basic Input/Output System) is firmware stored on a non-volatile memory chip on the motherboard. Flash memory chips are used because they can be rewritten while retaining data without power. Hard drives, diskettes, and USB drives are storage media, not where the BIOS itself resides.