Q.Draw the block diagram of a computer system. Briefly write about the functionality of each component.

Diagram (Figure 1.1): a vertical stack of Secondary Storage Devices ↔ Primary Memory ↔ CPU, where the CPU box contains the Control Unit (CU) above the Arithmetic Logic Unit (ALU), joined by a double-headed arrow. An Input Device oval sits to the left with a single arrow pointing INTO the CPU; an Output Device oval sits to the right with a single arrow pointing OUT of the CPU.

Functionality of each component:

• Input Device (keyboard, mouse, scanner, etc.) — accepts data and instructions from the user and sends them to the CPU.
• CPU — the Control Unit (CU) directs and coordinates the operations of all other units; the Arithmetic Logic Unit (ALU) performs arithmetic and logical operations on the data.
• Primary Memory — temporarily holds the data and instructions currently being used by the CPU. …

Diagram (Figure 1.1): a vertical stack of Secondary Storage Devices ↔ Primary Memory ↔ CPU, where the CPU box contains the Control Unit (CU) above the Arithmetic Logic Unit (ALU), joined by a double-headed arrow. An Input Device oval sits to the left with a single arrow pointing INTO the CPU; an Output Device oval sits to the right with a single arrow pointing OUT of the CPU.

Functionality of each component:

• Input Device (keyboard, mouse, scanner, etc.) — accepts data and instructions from the user and sends them to the CPU.
• CPU — the Control Unit (CU) directs and coordinates the operations of all other units; the Arithmetic Logic Unit (ALU) performs arithmetic and logical operations on the data.
• Primary Memory — temporarily holds the data and instructions currently being used by the CPU. …