Memory and Storage

A disk is a storage medium in the form of a circular plate, commonly used to store data magnetically or optically. CPU, printer, and ALU are not storage media.

Registers are small, fast storage locations within the CPU used to hold temporary data and instructions during processing, making them a form of temporary memory. ROM is permanent memory, hard disks are long-term storage, and circuits are hardware components, not memory types.

RAM (Random Access Memory) is volatile memory because it loses its data when the power is turned off. ROM, BIOS, and PROM are types of non-volatile memory that retain data without power.

ROM (Read-Only Memory) is a type of non-volatile memory, meaning it retains data even when the power is turned off. RAM (Random Access Memory) is volatile and loses data when power is lost. BIOS is firmware stored in ROM, so it is not itself a memory type but stored in non-volatile memory.

A programmed chip is commonly referred to as a PROM (Programmable Read-Only Memory), which can be programmed once after manufacturing. ROM is a broader category that includes PROM but is not specifically the 'programmed chip' itself.

A cache is a memory buffer that stores frequently accessed data to bridge the speed gap between the fast CPU and slower main memory, effectively accommodating speed differentials.

ROM (Read-Only Memory) is both static and non-volatile, meaning it retains data without power and does not require refreshing like RAM. RAM is volatile, BIOS is firmware stored in ROM, and cache is volatile memory used for speed.

A standard two-sided, single-layer DVD has a capacity of about 8.5 GB to 8.8 GB. The option closest to this standard capacity is 8.8 GB (Option A). Other options exceed typical DVD capacities.

A USB drive is considered a secondary storage device because it is used to store data externally and persistently, unlike primary storage which is typically volatile memory like RAM. Secondary storage devices retain data even when the computer is turned off.

ROM is non-volatile memory, meaning it retains data even when the power is turned off, which makes it useful for storing firmware and permanent data.

Magnetic storage devices, such as hard disk drives, have historically been the most common type of storage devices due to their widespread use and large capacity. Flash memory is increasingly popular but not yet the most common overall. Therefore, option A is correct.

A buffer is a temporary storage area in a computer used to hold data while it is being transferred from one place to another, making it the correct answer for temporary storage.

The standard capacity of a 3.5-inch floppy disk is 1.44 MB, making option D the correct answer. The other options incorrectly state capacities in GB or incorrect MB values.

The term '674 Storage' is not a standard term in computer science. However, the number 674 is often associated with a course code (e.g., CS 674) that covers modern storage systems. The terms 'Secondary storage', 'Auxiliary storage', and 'Mass storage' are commonly used interchangeably to refer to non-primary storage devices such as hard drives, SSDs, and other persistent storage media. Therefore, the option 'All of the above' is correct as all these terms describe similar types of storage beyond primary memory.

The storage capacity of a magnetic disk depends on multiple factors including the number of tracks per inch on the disk surface, the number of bits per inch along each track, and the number of disks (disk pack) in the disk surface assembly. Therefore, all the options contribute to the overall storage capacity.

SIMM stands for Single In-line Memory Module, which is a type of RAM module used in older computers. It allows memory chips to be mounted on a single circuit board for easier installation and improved performance.

Serial access memories are most useful when data needs to be accessed or processed in a sequential manner, such as in shift registers or tape drives, where data naturally flows in and out in serial form.

The acronym 'RW' stands for 'ReWritable,' which is used for optical storage media that can be reused, such as CD-RW or DVD-RW. The other options do not specifically indicate reusability.

RAM, cache, and registers are all types of temporary storage used by a computer to hold data and instructions while processing is taking place. They are volatile and lose their contents when power is lost.

RAM (Random Access Memory) is often referred to as the 'waiting room' for the processor because it temporarily holds data and instructions that the CPU needs while processing tasks.

RAID stands for 'Redundant Array of Independent Disks,' which is a technology used to combine multiple disk drives into a single unit for data redundancy and performance improvement.

CD ROM stands for 'Compact Disk Read Only Memory.' It is a type of optical disc that is used to store data and can only be read, not written or erased.

Computer memory consists of a large number of cells for storage, circuits for processing, and wires for connectivity. Therefore, all the options listed are components that make up memory.

Registers are the fastest type of memory in the memory hierarchy because they are located inside the CPU and are directly accessed by the processor for immediate data manipulation.

Associative memory is another term for Content Addressable Memory (CAM), which allows data retrieval based on content rather than a specific address.