WGU D686 OPERATING SYSTEMS FOR
COMPUTER SCIENTISTS ACTUAL
ASSESSMENT PAPER OA V1 AND V2 2026
THOROUGH QUESTIONS COMPLETE
CORRECT ANSWERS 100 PERCENT
VERIFIED GRADED A+
⩥ application program. Answer: A program designed for end-user
execution, such as a word processor, spreadsheet, compiler, or Web
browser.
⩥ ease of use. Answer: The amount of difficulty and complexity
involved in using some aspect of computing.
⩥ resource utilization. Answer: The amount of a given resource
(hardware or software) that is being used.
⩥ touch screen. Answer: A touch-sensitive screen used as a computer
input device.
⩥ voice recognition. Answer: A computer interface based on spoken
commands, which the computer parses and turns into actions.
,⩥ Siri. Answer: The Apple voice-recognition system.
⩥ embedded computer. Answer: A computer system within some other,
larger system (such as a car) that performs specific, limited functions
and has little or no user interface.
⩥ resource allocator. Answer: An operating system or application that
determines how resources are to be used.
⩥ control program. Answer: A program that manages the execution of
user programs to prevent errors and improper use of the computer. It is
especially concerned with the operation and control of I/O devices.
⩥ Moore's Law. Answer: A law predicted that the number of transistors
on an integrated circuit would double every eighteen months/ the idea
that the number of parts on a computer chip doubles about every 18
months
⩥ kernel. Answer: The operating system component running on the
computer at all times after system boot.
⩥ system program. Answer: A program associated with the operating
system but not necessarily part of the kernel.
, ⩥ middleware. Answer: A set of software frameworks that provide
additional services to application developers.
⩥ bus. Answer: A communication system; e.g., within a computer, a bus
connects various components, such as the CPU and I/O devices,
allowing them to transfer data and commands.
⩥ device driver. Answer: An operating system component that provides
uniform access to various devices and manages I/O to those devices.
⩥ interrupt. Answer: A hardware mechanism that enables a device to
notify the CPU that it needs attention.
⩥ interrupt vector. Answer: An operating-system data structure indexed
by interrupt address and pointing to the interrupt handlers. A kernel
memory data structure that holds the addresses of the interrupt service
routines for the various devices.
⩥ interrupt-request line. Answer: The hardware connection to the CPU
on which interrupts are signaled
⩥ interrupt-handler routine. Answer: An operating system routine that is
called when an interrupt signal is received.
COMPUTER SCIENTISTS ACTUAL
ASSESSMENT PAPER OA V1 AND V2 2026
THOROUGH QUESTIONS COMPLETE
CORRECT ANSWERS 100 PERCENT
VERIFIED GRADED A+
⩥ application program. Answer: A program designed for end-user
execution, such as a word processor, spreadsheet, compiler, or Web
browser.
⩥ ease of use. Answer: The amount of difficulty and complexity
involved in using some aspect of computing.
⩥ resource utilization. Answer: The amount of a given resource
(hardware or software) that is being used.
⩥ touch screen. Answer: A touch-sensitive screen used as a computer
input device.
⩥ voice recognition. Answer: A computer interface based on spoken
commands, which the computer parses and turns into actions.
,⩥ Siri. Answer: The Apple voice-recognition system.
⩥ embedded computer. Answer: A computer system within some other,
larger system (such as a car) that performs specific, limited functions
and has little or no user interface.
⩥ resource allocator. Answer: An operating system or application that
determines how resources are to be used.
⩥ control program. Answer: A program that manages the execution of
user programs to prevent errors and improper use of the computer. It is
especially concerned with the operation and control of I/O devices.
⩥ Moore's Law. Answer: A law predicted that the number of transistors
on an integrated circuit would double every eighteen months/ the idea
that the number of parts on a computer chip doubles about every 18
months
⩥ kernel. Answer: The operating system component running on the
computer at all times after system boot.
⩥ system program. Answer: A program associated with the operating
system but not necessarily part of the kernel.
, ⩥ middleware. Answer: A set of software frameworks that provide
additional services to application developers.
⩥ bus. Answer: A communication system; e.g., within a computer, a bus
connects various components, such as the CPU and I/O devices,
allowing them to transfer data and commands.
⩥ device driver. Answer: An operating system component that provides
uniform access to various devices and manages I/O to those devices.
⩥ interrupt. Answer: A hardware mechanism that enables a device to
notify the CPU that it needs attention.
⩥ interrupt vector. Answer: An operating-system data structure indexed
by interrupt address and pointing to the interrupt handlers. A kernel
memory data structure that holds the addresses of the interrupt service
routines for the various devices.
⩥ interrupt-request line. Answer: The hardware connection to the CPU
on which interrupts are signaled
⩥ interrupt-handler routine. Answer: An operating system routine that is
called when an interrupt signal is received.
