The correct answer is HDD.A laptop used for normal office work is likely to have a typical HDD(Hard Disk Drives) capacity of 512 GB.About HDD (Hard Disk Drives):An HDD is a data storage device that lives inside the computer.It has spinning disks inside where data is stored magnetically.The HDD has an arm with several "heads" (transducers) that read and write data on the disk.It is similar to how a turntable record player works, with an LP record (hard disk) and a needle on an arm (transducers).The arm moves the heads across the surface of the disk to access different data.They are available in two common form factors that are 2.5 inches (commonly used in laptops) and 3.5 inches (desktop computers).Additional InformationAbout Register:A register is a temporary storage area built into a CPU.Some registers are used internally and cannot be accessed outside the processor, while others are user-accessible.Most modern CPU architectures include both types of registers.About CPU(Central Processing Unit):The computer's central processing unit (CPU) is the portion of a computer that retrieves and executes instructions.The CPU is essentially the brain of a CAD system.It consists of an arithmetic and logic unit (ALU), a control unit, and various registers.About RAM:RAM is a volatile memory.RAM is essentially short-term memory where data is stored as the processor needs it.This isn't to be confused with long-term data that's stored on your hard drive, which stays there even when your computer is turned off.Download Solution PDFShare on Whatsapp