Computer Basics

MIME stands for Multipurpose Internet Mail Extensions. It is an internet standard that extends email to allow non-text attachments and character sets beyond ASCII. The other options are incorrect combinations of these words.

The Intel Pentium bug (1994) was a floating-point division error in the processor's Floating Point Unit (FPU). The bug caused incorrect results for certain division operations. Cache is memory storage. Socket is the processor interface. The bug definitely existed and was a major issue for Intel.

A scanner is an input device that converts physical documents to digital format. It cannot execute code or transmit viruses. Viruses can spread through floppy diskettes (boot sector viruses), email attachments, and internet downloads. Scanners are input-only devices with no data writing capability.

IRQ stands for Interrupt Request. It is a hardware signal sent by a device to the processor to request attention. Input Request and Interrupt Request Que are incorrect. The correct term is Interrupt Request, without 'Que' (queue).

CRT (Cathode Ray Tube) is a display technology used in traditional monitors and TVs. It uses vacuum tubes to display images by firing electrons at a phosphorescent screen. CPUs are processors. Printers produce paper output. Scanners digitize documents.

In Windows 95/98, the registry consisted of two hidden files: user.dat (user settings) and system.dat (system hardware and software settings). Autoexec.bat and config.sys are DOS configuration files. Win.ini is a Windows 3.x configuration file.

Lisp, Java, and Perl are all well-known programming languages. See is not a programming language - it is not recognized in computer science or software development.

Common mouse tracking technologies include mechanical (ball mouse), optical (LED or laser tracking), and optical-mechanical (combination). Motorized is not a recognized mouse technology - mice are not motorized devices.

Degaussing is the process of reducing or eliminating magnetic fields. It is used to erase magnetic media like floppy disks, hard drives, and to demagnetize CRT monitors. It is not a CPU attachment, medical software, or method for creating magnetic media.

The first Intel Celeron processors (Covington and Mendocino cores) lacked L2 cache memory, which significantly reduced performance compared to the full Pentium II processors they were derived from. Without L2 cache, the CPU had to wait longer for data from main RAM, causing bottlenecks. The later Celeron models added on-die L2 cache, which improved performance.

A Virtual LAN (VLAN) is a network segmentation technique used within organizations, not a personal computer security measure. While VLANs improve network security by isolating traffic, the question asks about 'your computer's' personal security - which is protected by firewalls, strong passwords, and updated software. The other options are direct personal security tools.

AOL (America Online) was an internet service provider and online portal, not a web browser itself. While AOL distributed a customized browser based on Internet Explorer, AOL itself is the ISP/service brand, not the browser software. Internet Explorer, Netscape, and Opera are all actual web browsers.

IRC stands for Internet Relay Chat, a protocol for real-time text messaging. It was created in 1988 and predates modern instant messaging applications. IRC uses a client-server model where users connect to servers and join channels (chat rooms) for group discussions.

Hard disk drives store data using magnetic technology - tiny magnetic domains on spinning platers represent binary data. Read/write heads change or detect these magnetic patterns. This is different from optical storage (laser, like CDs/DVDs) or solid-state storage (electrical charge).

Ping, Winipcfg (Windows IP Configuration), and Tracert (Trace Route) are all standard Windows network diagnostic commands. 'Netcfg' is not a standard Windows network command - it may be confused with 'netsh' or 'ipconfig'. The correct network utilities are ping, tracert, ipconfig, winipcfg, netstat, etc.

MP3, AIF (Audio Interchange File), and WAV are all digital audio file formats for storing sound. COM is a file extension for DOS executable programs (commands), not audio files. Other audio extensions include MP3, WAV, WMA, AAC, FLAC, OGG, and AIFF.

SunOS (Solaris), RedHat Linux, and Debian Linux are all UNIX or UNIX-like operating systems. DOS (Disk Operating System) is a separate operating system family developed by Microsoft, with no UNIX heritage. DOS and Windows are entirely different from UNIX/Linux.

BCC (Blind Carbon Copy) is an email field, SPAM refers to junk email, and Pine is a well-known email client program. 'Pen' is simply a writing instrument and has no relation to email technology or terminology.

Switches, Hubs, and Routers are all fundamental network devices that forward data. 'Core' is not a specific network device - it refers to a layer in network architecture (core layer) or core switches, but 'Core' alone is not a device category. The actual devices are routers, switches, hubs, bridges, and repeaters.

Cable modems provide broadband internet access over coaxial cable lines, offering speeds from 25 Mbps to 1+ Gbps. 28.8k and 56k are dial-up modem speeds (narrowband). 'Modem' alone is a device type, not a connection technology - the question asks for the broadband technology, which is Cable.

SuSE (Linux), UNIX, and DOS are all operating systems. 'OSD' is not an operating system - it's likely a distractor or confusion with OS/2. The real operating systems are UNIX, DOS, Linux, Windows, macOS, etc. OSD has no meaning as an OS product.

A cookie is a small text file stored on your device by a web browser. It contains information about your browsing activity and preferences, which websites can use to remember you when you return. Cooking software (A) refers to kitchen applications, websites (B) are entire online destinations, and hacker files (D) are not related to browsing data.

Windows XP was marketed as representing 'Experience' - emphasizing the user experience. Microsoft used XP to signify a major shift in user interface and functionality. Xtended Professional (A) and EXtra Powerful (B) are not the official meanings, and it is indeed an acronym where XP stands for Experience.

JPEG, GIF, and BMP are all image file formats used for storing pictures and graphics. TMP is a generic extension for temporary files that can contain any type of data - it's not specific to images. Temporary files are used by programs to store data temporarily during processing.

UNIX is not actually an acronym - the name was a pun on 'Multics', the operating system from which UNIX was developed. The creators (Ken Thompson, Dennis Ritchie, and others) wanted something simpler than Multics, and UNIX was originally spelled 'Unics' (Uniplexed Information and Computing Service), but eventually became UNIX without being a true acronym.