Computer Science

A Binary Coded Decimal (BCD) digit is represented using 4 bits, as each decimal digit (0-9) is encoded in a 4-bit binary form.

Eight bits make up one byte, which is a fundamental unit of digital information storage in computer science.

One Petabyte (PB) is equal to 1024 Terabytes (TB) because data storage units are based on powers of 2, where 1 PB = 1024 TB.

Primary storage (such as RAM) is typically faster but more expensive than secondary storage (like hard drives or SSDs). Therefore, it is fast and expensive compared to secondary storage.

1 Yottabyte (YB) equals 1024 Zettabytes (ZB) because data storage units increase by powers of 1024 in binary prefixes. Hence, 1 YB = 1024 ZB.

Main memory (RAM) temporarily holds data and processing instructions while the CPU needs them, enabling quick access during processing. ROM is permanent storage, and the Control Unit directs operations but does not store data temporarily.

RAM (Random Access Memory) is located on the motherboard of a computer, typically in dedicated memory slots. It is not found on external drives or expansion boards.

1 Zettabyte (ZB) equals 1024 Exabytes (EB) because data storage units are based on powers of 2, where each unit is 1024 times the previous one.

265 RAM refers to a type of memory that allows both reading and writing operations, which corresponds to Read-Write Memory. This distinguishes it from Read Only Memory (ROM) and its programmable variants.

Among the given options, Terabyte is the largest unit of storage. A Terabyte is larger than a Gigabyte and a Byte, making it the correct answer.