Computer Systems Fundamentals

Which of the following best describes the primary function of a computer system?

If a computer is compared to the human body, which component would be analogous to the brain, responsible for interpreting and executing instructions?

Which of the following is a hardware component of a computer system responsible for performing mathematical calculations and logical operations?

Consider a scenario where a user is typing a document on a word processor. Which component of the computer system is directly responsible for interpreting the user's keystrokes and converting them into machine-readable instructions?

Which of the following pairs of components from Table 1 represents hardware and software respectively?

Which of the following scenarios best illustrates the continued relevance, despite obsolescence, of the EBCDIC coding scheme?

If a new character encoding scheme was developed using 10 bits per character, how many unique characters could it represent?

Why is it important to have standardized coding schemes like ASCII for representing characters in computers?

Consider a system that needs to represent both uppercase and lowercase English letters, digits, punctuation marks, and a set of 50 special symbols. Which of the following bit lengths would be sufficient to encode all these characters?

A system that uses multiple coding schemes needs to convert data represented in ASCII to EBCDIC. What is the most significant challenge it will face?

If a system uses 12 bits to represent a character, what is the maximum number of unique characters that can be represented?

In a computer system, which of the following is the most accurate description of the relationship between bits and bytes?

Why is it important to use bytes instead of bits to represent data in modern computing?

A certain computer program requires storing statuses (either ON or OFF) of 50 different devices. What is the most efficient way to store this data?

Which of the following scenarios best exemplifies the 'Process' stage of the information processing cycle?

A hospital uses a system where patient data is entered via a tablet, analyzed to generate a diagnosis, displayed on a monitor for the doctor, and then archived on a central server. Which of the following correctly matches the devices to the stages of the information processing cycle?

What is the primary distinction between a 'bit' and a 'byte' in the context of computer data representation?

A musician records a song using a microphone, edits the song using audio software, shares the final mix on a streaming platform, and then archives the project files on a local hard drive. In terms of the information processing cycle, what would be the correct order of the devices used?

A company is implementing a new system for managing customer orders. Data is entered via a web form, processed to check inventory and calculate shipping costs, presented to the customer, and then stored in a database. Which components represent 'Input' and 'Storage', respectively?

Which scenario accurately describes the complete information processing cycle?

What is the primary advantage of Unicode over ASCII and EBCDIC?

Which of the following is an example of a Boolean expression?

If a system needs to represent characters in both English and Chinese, which coding scheme would be most suitable?

Which of the following is NOT considered a basic logical operator?

What is the maximum number of distinct characters that can be represented using Unicode?

Which Boolean expression accurately represents the output Y of an AND gate with inputs A and B?

For an OR gate, under what condition will the output Y be False (0)?

Given a system with two inputs, A and B, which are fed into an AND gate. If A is True (1) and B is False (0), what will be the output Y?

In Boolean algebra, which expression is equivalent to the statement 'Y equals A OR B'?

According to the behavior of boolean logical operators, which of the following is NOT a correct representation of the AND operator?

Given the truth table of an OR gate, what will the output (Y) be if input A is 0 and input B is 1?

Which boolean expression accurately represents the output Y of a NOT gate with input A?

If a NOT gate receives an input of TRUE, what will be the output?

In what scenario does the OR gate produce a FALSE (0) output?

Which of the following best describes a NOT gate's function?

According to the truth table for a NOR gate, what is the output (Y) when both inputs A and B are true (1)?

Which boolean expression accurately represents the functionality of a NOR gate?

For an XOR gate, if input A is True (1) and input B is False (0), what is the output (Y)?

Under what condition does an XOR gate produce a False (0) output?

Considering both NOR and XOR gates, which statement accurately describes their output when both inputs A and B are False (0)?

A NAND gate's output is connected to a NOT gate. Which single gate's behavior is equivalent to this combination?

For a NAND gate with inputs A and B, under what condition will the output Y be FALSE (0)?

Given inputs A=1 and B=0, what would be the output Y of a NAND gate?

How does the output of a NAND gate change if one of its inputs changes from TRUE (1) to FALSE (0), assuming the other input remains TRUE (1)?

Based on the truth table provided, under what condition does an XNOR gate produce a '1' (True) output?

In a system using XNOR logic, you need to design a circuit that outputs '1' only when two sensors detect the same condition (either both ON or both OFF). How would you implement this?

Given the Boolean expression $Y = A \oplus B$, which of the following input combinations for A and B would result in Y being '0' for an XNOR gate?

Consider a scenario where an XNOR gate is used to compare two bits of a digital signature. What does a '1' output from the XNOR gate indicate in this context?

If an XNOR gate's output is connected to an LED such that a '1' output turns the LED on and a '0' output turns it off, under what input conditions will the LED be illuminated?

Input Device

Output Device

Storage Device

Information Processing Cycle

Process (in IPOS)

What is a computer?

What is Computer Hardware?

What is Computer Software?

What is the CPU?

What are the CPU's main components?

Coding System

ASCII

ASCII Bits & Characters

EBCDIC

EBCDIC Bits & Characters

Unicode

Logical Operator

Boolean Expression

Data Representation

Bit (Binary Digit)

Byte

Bit vs. Byte

Byte Capacity

AND Gate Output

AND Boolean Expressions

OR Gate Output

OR Boolean Expressions

Truth Table

OR gate

NOT gate

OR gate Explanation

What is a NAND gate?

What is XOR gate?

What is a NOR gate?

What is XNOR gate?

What are Boolean expressions?

NOR gate truth table

What operations does NOR perform?

Boolean Expression (Logic Gates)

⊕ (XOR Symbol)