Computer Hardware Quiz

ISA, PCI, and AGP are all types of expansion slots on motherboards. ATX is a motherboard form factor and power supply standard, not an expansion slot type.

To solve this question, the user needs to have knowledge about computer hardware and specifically about the IRQ (Interrupt Request) system.

The IRQ system is used by devices to communicate with the CPU (Central Processing Unit) and request its attention. Each device is assigned a specific IRQ number to ensure proper communication and coordination.

COM1 is a standard serial port used for connecting peripherals such as modems or serial mice. In the IRQ system, COM1 commonly uses IRQ 4.

Let's go through each option and explain why it is right or wrong:

A. 3: This option is incorrect because COM1 commonly uses IRQ 4, not IRQ 3.

B. 4: This option is correct. COM1 commonly uses IRQ 4.

C. 6: This option is incorrect because COM1 commonly uses IRQ 4, not IRQ 6.

D. 7: This option is incorrect because COM1 commonly uses IRQ 4, not IRQ 7.

E. 14: This option is incorrect because COM1 commonly uses IRQ 4, not IRQ 14.

The Answer is: B

IDE, SCSI, and EIDE are all hard drive interface technologies. FDD (Floppy Disk Drive) is a type of floppy drive, not a hard drive. It uses different media and interface.

To solve this question, the user needs to know the differences between the types of computer memory.

A. CPU (Central Processing Unit) is not a type of memory, it is a processing unit that performs most of the processing inside a computer.

B. ROM (Read-Only Memory) is a type of non-volatile memory that retains its data even when the power is turned off. It is used to store firmware, BIOS, and other permanent system data.

C. RAM (Random Access Memory) is a type of volatile memory that does not retain its data when the power is turned off. It is used to temporarily store data while the computer is running.

D. DRAM (Dynamic Random Access Memory) is a type of volatile memory that requires constant refreshing to retain its data. It is used as the main memory in most computers.

E. DIMM (Dual In-Line Memory Module) is not a type of memory, it is a form factor for RAM modules.

Therefore, the correct answer is B. ROM.

A floppy drive ribbon cable is distinguished by a 'twist' in a few of the wires (specifically wires 10-16) near the end of the cable. This twist allows the system to differentiate between Drive A: and Drive B: on the same cable.

In the standard x86 PC architecture, IRQ 0 is the highest priority interrupt and is permanently assigned to the system timer (Programmable Interval Timer). This allows the OS to maintain the system clock and perform task switching.

BIOS stands for Basic Input/Output System. It's firmware that initializes hardware during boot and provides runtime services for operating systems. The other options are plausible but incorrect acronyms.

SIMM and DIMM are types of RAM modules. ROM (Read-Only Memory) is non-volatile memory used for firmware like BIOS, not RAM. SLIPP is a distracter.

FDISK is a disk partitioning utility that creates and manages disk partitions. Low-level formatting is done by utilities like DEBUG. Bad sector repair is done by SCANDISK. Recovering lost clusters uses CHKDSK.

RJ-11 is the standard 4-pin or 6-pin connector for telephone lines. RJ-45 is for Ethernet networks. COM1 is a serial port identifier, not a connector type. RJ-10 is not a standard connector.