D386 Hardware and Operating System Essentials
with correct answers 2026
Operating-system---correct-answers--system-software-that-acts-as-a-"go-between",-allowing-
computer-hardware-and-other-software-to-communicate-with-each-other
resource-manager---correct-answers--what-is-the-purpose-of-a-computer-operating-system?
Operating-System-(OS)---correct-answers--What-kind-of-software-are-the-Mac-OS-X-and-Windows-
10-program?
Android---correct-answers--What-operating-system-is-open-sourced-and-allows-its-source-code-to-
be-modified-and-redistributed?
Cloud-based-operating-systems---correct-answers--What-primarily-manages-the-operating-of-one-
or-more-virtual-machines-within-a-virtualized-environment?
primarily-stateless---correct-answers--What-is-a-feature-of-cloud-based-operating-systems?
System-calls---correct-answers--unique-set-of-services-provided-by-operating-systems-for-use-by-
applications-and-have-to-be-accounted-for-by-different-operating-systems.
Application-Programming-Interface-(API)---correct-answers--A-set-of-software-routines-that-
allows-one-software-system-to-work-with-another.
,Unique-system-calls---correct-answers--Why-do-applications-designed-to-work-on-one-operating-
system-not-work-on-a-different-operating-system?
single-user-systems---correct-answers--multitasking-systems,-found-in-laptops-and-workstations
Mobile-Device-Operating-Systems---correct-answers--provides-single-user-and-multitasking-at-a-
scaled-down-level-due-to-power-and-memory-limitations
Mainframe-Systems---correct-answers--large,-fast,-and-powerful,-used-for-high-transaction-
processing-and-complex-computations;-used-by-corporations-and-government-agencies
network-server-systems---correct-answers--designed-and-named-for-a-specific-purpose-such-as-
database-servers,-web-servers,-and-print-servers
real-time-systems---correct-answers--designed-to-direct-CPU-access-immediately-when-needed-
or-required
embedded-control-systems---correct-answers--specialized-operating-systems-designed-to-control-
asingle-piece-of-equipment-or-machinery
distributed-systems---correct-answers--geared-toward-allocating-process-power,-programs,-files,-
and-databases-to-network-users.
Application-Software---correct-answers--software-program-that-helps-you-use-the-computer-to-
do-particular-tasks
Drivers---correct-answers--instructs-a-particular-OS-on-how-to-access-a-piece-of-hardware
, version---correct-answers--particular-revision-of-a-piece-of-software,-normally-described-by-a-
number-that-tells-you-how-new-the-product-is-in-relation-to-other-versions-of-the-product
source-code---correct-answers--actual-code-that-defines-how-a-piece-of-software-works
open-source---correct-answers--software-that-is-created-for-free-use-by-everyone
closed-source---correct-answers--source-code-that-is-highly-protected-and-only-available-to-
trusted-employees-and-carefully-vetted-contractors
Graphical-User-Interface-(GUI)---correct-answers--A-visual-display-on-a-computer's-screen-that-
allows-you-to-interact-with-your-computer-more-easily-by-clicking-graphical-elements
network---correct-answers--a-group-of-two-or-more-computer-systems-linked-together
Cooperative-multitasking---correct-answers--when-the-operating-system-processes-the-taks-
assigned-a-higher-priority-before-processing-a-task-that-has-been-assigned-a-lower-priority
Multithreading---correct-answers--allows-different-parts-of-a-single-program-to-run-concurrently
Interupt-Driven-I/O---correct-answers--involves-the-use-of-interrupt-to-exchange-data-between-
I/O-and-memory
programmed-I/O---correct-answers--the-processor-issues-an-I/O-command,-on-behalf-of-a-
process,-to-an-I/O-module;-that-process-then-busy-waits-for-the-operation-to-be-completed-
before-proceeding
with correct answers 2026
Operating-system---correct-answers--system-software-that-acts-as-a-"go-between",-allowing-
computer-hardware-and-other-software-to-communicate-with-each-other
resource-manager---correct-answers--what-is-the-purpose-of-a-computer-operating-system?
Operating-System-(OS)---correct-answers--What-kind-of-software-are-the-Mac-OS-X-and-Windows-
10-program?
Android---correct-answers--What-operating-system-is-open-sourced-and-allows-its-source-code-to-
be-modified-and-redistributed?
Cloud-based-operating-systems---correct-answers--What-primarily-manages-the-operating-of-one-
or-more-virtual-machines-within-a-virtualized-environment?
primarily-stateless---correct-answers--What-is-a-feature-of-cloud-based-operating-systems?
System-calls---correct-answers--unique-set-of-services-provided-by-operating-systems-for-use-by-
applications-and-have-to-be-accounted-for-by-different-operating-systems.
Application-Programming-Interface-(API)---correct-answers--A-set-of-software-routines-that-
allows-one-software-system-to-work-with-another.
,Unique-system-calls---correct-answers--Why-do-applications-designed-to-work-on-one-operating-
system-not-work-on-a-different-operating-system?
single-user-systems---correct-answers--multitasking-systems,-found-in-laptops-and-workstations
Mobile-Device-Operating-Systems---correct-answers--provides-single-user-and-multitasking-at-a-
scaled-down-level-due-to-power-and-memory-limitations
Mainframe-Systems---correct-answers--large,-fast,-and-powerful,-used-for-high-transaction-
processing-and-complex-computations;-used-by-corporations-and-government-agencies
network-server-systems---correct-answers--designed-and-named-for-a-specific-purpose-such-as-
database-servers,-web-servers,-and-print-servers
real-time-systems---correct-answers--designed-to-direct-CPU-access-immediately-when-needed-
or-required
embedded-control-systems---correct-answers--specialized-operating-systems-designed-to-control-
asingle-piece-of-equipment-or-machinery
distributed-systems---correct-answers--geared-toward-allocating-process-power,-programs,-files,-
and-databases-to-network-users.
Application-Software---correct-answers--software-program-that-helps-you-use-the-computer-to-
do-particular-tasks
Drivers---correct-answers--instructs-a-particular-OS-on-how-to-access-a-piece-of-hardware
, version---correct-answers--particular-revision-of-a-piece-of-software,-normally-described-by-a-
number-that-tells-you-how-new-the-product-is-in-relation-to-other-versions-of-the-product
source-code---correct-answers--actual-code-that-defines-how-a-piece-of-software-works
open-source---correct-answers--software-that-is-created-for-free-use-by-everyone
closed-source---correct-answers--source-code-that-is-highly-protected-and-only-available-to-
trusted-employees-and-carefully-vetted-contractors
Graphical-User-Interface-(GUI)---correct-answers--A-visual-display-on-a-computer's-screen-that-
allows-you-to-interact-with-your-computer-more-easily-by-clicking-graphical-elements
network---correct-answers--a-group-of-two-or-more-computer-systems-linked-together
Cooperative-multitasking---correct-answers--when-the-operating-system-processes-the-taks-
assigned-a-higher-priority-before-processing-a-task-that-has-been-assigned-a-lower-priority
Multithreading---correct-answers--allows-different-parts-of-a-single-program-to-run-concurrently
Interupt-Driven-I/O---correct-answers--involves-the-use-of-interrupt-to-exchange-data-between-
I/O-and-memory
programmed-I/O---correct-answers--the-processor-issues-an-I/O-command,-on-behalf-of-a-
process,-to-an-I/O-module;-that-process-then-busy-waits-for-the-operation-to-be-completed-
before-proceeding
