Computer Systems - Lesson 1 - Intro to Computer Systems

What is a computer system?

• A single standalone device

• A system with only hardware

• A combination of many connected parts working together

• A collection of unrelated components

Answer explanation

A computer system is a combination of many connected parts working together, not just a single standalone device or a collection of unrelated components.

What are the components of a computer system?

• Hardware, Software, The internet, The human user

• Hardware, Software, Data, The operating system

• Hardware, Software, Data, The CPU

• Hardware, Software, Data, The human user

Answer explanation

The correct components of a computer system are Hardware, Software, Data, and The human user. The human user plays a crucial role in interacting with the system.

Who designs how a computer system will be laid out?

• Computer architect

• Software developer

• Data analyst

• Network engineer

Answer explanation

The correct choice is computer architect because they design how a computer system will be laid out.

What are the 4 components of Von Neumann Architecture?

• CPU, GPU, RAM, SSD

• CPU, Memory, Bus, Input and output devices

• Keyboard, Mouse, Monitor, Printer

• Motherboard, Hard Drive, CPU, RAM

Answer explanation

The correct components of Von Neumann Architecture are CPU, Memory, Bus, Input and output devices.

What is the function of the control unit in the CPU?

• Connects the CPU and memory

• Stores data temporarily

• Performs arithmetic operations

• Directs operations of the CPU

Answer explanation

The control unit in the CPU directs the operations of the CPU, coordinating the activities of all other units within the processor to execute instructions and manage data flow.

What does ALU stand for and what does it do?

• Arithmetic/Logic Unit, operates on data as per instructions

• Advanced Logic Unit, controls CPU operations

• Arithmetic/Logic Unit, stores data temporarily

• Application Layer Unit, manages software applications

Answer explanation

ALU stands for Arithmetic/Logic Unit, which operates on data as per instructions, making the correct answer choice.

What is the main difference between RAM and ROM?

• RAM is volatile, ROM is non-volatile

• RAM is cheaper, ROM is more expensive

• RAM is permanent, ROM is temporary

• RAM is slower, ROM is faster

Answer explanation

The main difference between RAM and ROM is that RAM is volatile, meaning it loses data when power is turned off, while ROM is non-volatile, retaining data even when power is off.

What is the function of the bus in a computer system?

• Performs calculations

• Connects the CPU and memory

• Manages input and output devices

• Stores data permanently

Answer explanation

The bus in a computer system connects the CPU and memory, allowing for data transfer between the two components.

What are input and output devices used for in a computer system?

• Allow data to come into the computer and results to be sent out

• Store programs internally

• Perform arithmetic operations

• Connect the CPU and memory

Answer explanation

Input and output devices are used in a computer system to allow data to come into the computer and results to be sent out.

What does the CPU do in the fetch-execute cycle?

• Performs calculations on data

• Connects the CPU and memory

• Fetches the program's next instruction from memory

• Stores data temporarily

Answer explanation

The CPU fetches the program's next instruction from memory in the fetch-execute cycle.