Computer Fundamentals and System Concepts

DPI (Dots Per Inch) measures the density of dots in a printed image or on a screen, directly affecting visual clarity and resolution. It's not related to sound decibels, processor heat, or audio quality - those are completely different domains.

INTEL stands for Integrated Electronics, reflecting the company's original focus on integrated semiconductor technology. This is the correct expansion of the company name founded in 1968.

The name COMPAQ was created to represent 'Compatibility and Quality'. This reflected the company's initial strategy of producing some of the first IBM PC compatible computers that maintained high standards.

Spyware is specifically defined as software that secretly monitors and collects information about users' activities without their knowledge. Unlike malware (malicious software in general) or trojans (which disguise themselves as legitimate software), spyware's primary characteristic is unauthorized surveillance of user behavior.

Unicode is the industry standard that enables computers to represent and manipulate text from most of the world's writing systems consistently. It provides a unique number for every character across languages. CMM is a capability maturity model, Bytecode is compiled code format, making Unicode the clear correct answer.

BIOS (Basic Input/Output System) is firmware that initializes hardware during the boot process - it is not a battery. CMOS is a memory chip that uses a small battery to maintain BIOS settings, Li-ion is a common rechargeable battery type, and NiMH (Nickel-Metal Hydride) is another battery chemistry.

BIOS stands for Basic Input/Output System. It's firmware stored on a motherboard chip that initializes hardware during the boot process and provides runtime services for operating systems and programs. The 'Basic' refers to its fundamental nature, 'Input/Output' describes its primary function of managing data flow between CPU and peripherals, and 'System' indicates it's a complete software suite.

The correct answer is C (Erasing magnetic media) because degaussing is the process of demagnetizing objects like hard drives, tape, or CRT monitors by reducing their magnetic field to zero. This permanently erases data stored magnetically. It has nothing to do with CPU attachments or medical software.

APC (American Power Conversion) specializes in uninterruptible power supplies, surge protectors, and data center infrastructure. Their entire brand positioning is built on reliability and power protection. Intel focuses on performance, Intex on budget electronics, and Microsoft on software - none claim 'legendary reliability' as their core identity like APC does.

Charles Babbage is called the father of the computer for designing the Difference Engine and Analytical Engine in the 19th century, considered the first mechanical computers.

'Imagine it Done' is Unisys's corporate slogan, reflecting their IT services and solutions focus. Norton (Symantec) and Seagate are technology companies with different brand positioning. IBM is a major competitor with its own slogans.

Chip magazine uses 'Intelligent Computing' as their tagline, targeting tech-savvy readers interested in computer technology. Note the typo in option A ('NOne' instead of 'None'). Option B is correct as Chip is a well-known technology publication.

Computer hacking culture originated at MIT in the 1960s, particularly with the Tech Model Railroad Club, where members developed creative solutions to technical problems. The term 'hacker' originally referred to someone skilled at creative programming or problem-solving, before acquiring negative connotations.

Linux has a robust security architecture that makes it less vulnerable to malware compared to Windows, so antivirus software is not mandatory. However, it can be optionally used, especially in mixed environments or when sharing files with Windows systems. The option that antivirus doesn't exist for Linux is false, and the extremes of mandatory or completely unnecessary are both incorrect.