Explanation

The Entity Relationship (ER) Model visually represents entities, their attributes, and relationships in a database.

It is widely used in database design to define the logical structure before actual implementation.

Explanation

Creating web pages is not a function of an operating system; it is done using specialized software like HTML editors or web development tools.

An operating system manages hardware, software, file storage, and application execution.

Explanation

In DBMS, repetition of data is called redundancy.

Redundancy leads to wastage of space and potential data inconsistency.

Explanation

Clock speed measures how fast a computer's processor can execute instructions.

It is expressed in Gigahertz (GHz).

1 GHz equals 1 billion cycles per second, indicating the processor’s speed.

Explanation

Every processor must have a Control Unit (CU) to direct operations and an Arithmetic Logic Unit (ALU) to perform calculations.

Primary storage (RAM) is essential for holding data and instructions during processing.

Explanation

Explanation

Cache memory is the fastest type of memory, located close to the CPU.

It stores frequently used data to maximize processing speed and performance.

Explanation

VLOOKUP stands for Vertical Lookup.

It is used to search for a value in the first column of a table.

It is categorized under Lookup and Reference functions in Excel.

Explanation

Assembly language is a low-level language that uses mnemonics to represent machine-level instructions.

It is hardware-specific and closer to binary code, offering more control over hardware.

Explanation

During booting, the operating system is loaded into RAM from the hard drive.

RAM (Random Access Memory) allows the OS to run and manage tasks efficiently while the computer is on.