Unit 1a

What does POST stand for in the context of computer boot-up processes?

• Power-Off System Test

• Power-On Self-Test

• Primary Operating System Test

• Post-Operation System Test

Which of the following is NOT listed as a component in the overview of End User Devices?

• USB Ports

• Operating System

• Boot Sequence

• Clock Speed

What is primarily referred to by 'RAM' in computer terminology?

• Read Access Memory

• Random Access Memory

• Rapid Action Memory

• Range Access Memory

What is the primary objective of Unit 1a in the study of End User Devices (Theory of Operations)?

• To analyze advanced computational theories

• To identify the relationship of basic facts and state general principles pertaining to the Theory of Operations for Client Systems

• To design new end user devices

• To evaluate software efficiency

What is the first action in the start-up sequence of a computer as described in the material?

• CPU applies built-in address to address bus

• Power supply checks itself for correct voltage

• POST program is read from ROM

• Signal is sent down the power good wire

What does the power supply do to initiate the waking up of the CPU?

• Sends a reset signal to the CPU

• Applies built-in address to the address bus

• Sends signal down power good wire

• Loads the POST program from ROM

Where is the first line of the POST (Power On Self Test) program stored?

• In the CPU's internal cache

• On the hard drive

• In the motherboard's ROM

• In the external memory

What is the purpose of the POST in a computer system?

• To update the computer's software

• To run diagnostic tests on hardware components when the computer is booted

• To clean the computer's memory

• To install new hardware components

How does POST report hardware failures?

• By sending an email to the administrator

• By displaying a message on the screen

• By audible beep codes and text error codes

• By shutting down the computer

Which component is used by POST to produce audible beep codes to indicate hardware failure?

• Hard drive

• PC speaker

• Monitor

• Keyboard