COMPUTER SCIENCE AN OVERVIEW
CHAPTERS 1 TO 8 ACTUAL TEST 2026
VERIFIED QUESTIONS AND ANSWERS
COMPREHENSIVE STUDY GUIDE
◉ Algorithm.
Answer: A finite sequence of instructions that, when applied to a
problem, will solve it.
-The sequence of steps that describes each of these computational
processes
-Describes a process that ends with a solution to a problem
◉ Infinite number of instructions (?).
Answer: Describing something without any bound, as many
instructions as needed
◉ Computing Agent.
Answer: The entity that executes instructions in an algorithm
-an object capable of understanding and executing our instructions
◉ Data.
,Answer: The symbols that are used to represent information in a
form suitable for storage, processing, and communication
-Information
-Computing agent manipulates information (input to output)
◉ Variable.
Answer: A memory location, referenced with a key and is located by
a key in a collection
◉ Input.
Answer: Data obtained by a program during its execution
-Given information
-The purpose of most of the input devices is to convert information
that human beings deal with, such as text, images, and sounds, into
information for computational processing
◉ Output.
Answer: Information that is produced by a program
-New information
-The purpose of most output devices is to convert the results of this
processing back to human-usable form
◉ Processor.
, Answer: a small chip that resides in computers and other electronic
devices. Its basic job is to receive input and provide the appropriate
output.
◉ Program.
Answer: A set of instructions that tells the machine (the hardware)
what to do
◉ Bits.
Answer: binary digits
◉ Records.
Answer: a database entry that may contain one or more values.
Groups of records are stored in a table, which defines what types of
data each record may contain. Databases may contain multiple
tables which may each contain multiple records.
◉ Input.
Answer: Keyboard, a mouse, and a microphone
◉ Output.
Answer: Monitor and speakers
CHAPTERS 1 TO 8 ACTUAL TEST 2026
VERIFIED QUESTIONS AND ANSWERS
COMPREHENSIVE STUDY GUIDE
◉ Algorithm.
Answer: A finite sequence of instructions that, when applied to a
problem, will solve it.
-The sequence of steps that describes each of these computational
processes
-Describes a process that ends with a solution to a problem
◉ Infinite number of instructions (?).
Answer: Describing something without any bound, as many
instructions as needed
◉ Computing Agent.
Answer: The entity that executes instructions in an algorithm
-an object capable of understanding and executing our instructions
◉ Data.
,Answer: The symbols that are used to represent information in a
form suitable for storage, processing, and communication
-Information
-Computing agent manipulates information (input to output)
◉ Variable.
Answer: A memory location, referenced with a key and is located by
a key in a collection
◉ Input.
Answer: Data obtained by a program during its execution
-Given information
-The purpose of most of the input devices is to convert information
that human beings deal with, such as text, images, and sounds, into
information for computational processing
◉ Output.
Answer: Information that is produced by a program
-New information
-The purpose of most output devices is to convert the results of this
processing back to human-usable form
◉ Processor.
, Answer: a small chip that resides in computers and other electronic
devices. Its basic job is to receive input and provide the appropriate
output.
◉ Program.
Answer: A set of instructions that tells the machine (the hardware)
what to do
◉ Bits.
Answer: binary digits
◉ Records.
Answer: a database entry that may contain one or more values.
Groups of records are stored in a table, which defines what types of
data each record may contain. Databases may contain multiple
tables which may each contain multiple records.
◉ Input.
Answer: Keyboard, a mouse, and a microphone
◉ Output.
Answer: Monitor and speakers
