COA L1

What is the main purpose of the control unit in the CPU?

• Performing arithmetic operations
• Directing operations of the processor
• Transferring data to external devices
• Storing long-term data

Which of the following are basic functions of a computer? (Select all that apply)

• Data processing
• Data movement
• Device fabrication
• Control

What component temporarily holds data and instructions during processing?

• Hard Disk
• ROM
• Main Memory
• Cache

Which of the following describe computer **architecture**?

• Control signals and memory technology
• Instruction set and addressing techniques
• Internal interconnection of components
• Peripheral interfaces

Which of the following computers introduced multitasking in IBM systems?

• IBM 1401
• IBM System/370
• PDP-11
• Intel 8080

What does Moore’s Law predict?

• Cost of transistors will increase over time
• Number of transistors on a chip doubles every 18–24 months
• CPU speed will double every decade
• RAM capacity will remain constant

Which of these were features of second-generation computers? (Select all that apply)

• Use of transistors
• Introduction of high-level languages
• Multicore processors
• System software support

The von Neumann machine is another name for:

• PDP-8
• IAS computer
• Intel 4004
• IBM 360

Which part of the CPU is responsible for arithmetic and logical operations?

• Control Unit
• System Bus
• ALU
• Registers

Cache memory is used to:

• Store software permanently
• Process instructions
• Speed up access to frequently used data
• Increase display resolution