WGU D686 (OA) Operating Systems for
Computer Scientists Questions And Answers
Latest Updates 2025/2026 With Correct
Answers 100% With Complete Solutions
Operating system - AnswerA program that manages a computer's hardware, provides a basis for
application programs, and acts as an intermediary between the computer user and the computer
hardware
Operating system - AnswerSoftware that manages a computer's hardware, helps applications work,
and lets users interact with the computer
hardware - AnswerThe CPU, memory devices, input/output devices, and any other physical
components that are part of a computer
application program - Answera program designed for end-user execution, such as a word processor,
spreadsheet, compiler, or Web browser
ease of use - Answerthe amount of difficulty and complexity involved in using some aspect of
computing
resource utilization - Answerthe amount of a given resource (hardware or software) that is being
used
touch screen - Answera touch-sensitive screen used as a computer input device
voice recognition - Answera computer interface based on spoken commands, which the computer
parses and turns into actions
,Siri - Answerthe Apple voice-recognition system
embedded computer - Answera computer system within some other, large system (such as a car)
that performs specific, limited functions and has little or no user interface
resource allocator - Answeran operating system or application that determines how resources are to
be used
control program - Answera 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 - Answerthe idea that the number of parts on a computer chip doubles about every 18
months
kernel - Answerthe main part of an operating system that starts running as soon as a computer
turns on
system program - Answersoftware related to the operating system but designed for smaller and
more specific tasks
bus - Answera pathway that moves data and instructions between parts of a computer, like the CPU
and devices
device driver - Answersoftware that helps the operating system talk to and control hardware like
printers or keyboards
interrupt - Answera signal from a device telling the computer's brain (the CPU) that something
important needs attention right away
, interrupt vector - Answera list that shows where the computer should go to handle different kinds
of interruptions
interrupt-request line - Answera wire or circuit that lets devices send signals to the CPU to ask for
attention
interrupt-handler croutine c- cAnswera cspecial cprogram cthat cthe ccomputer cruns cwhen cit cgets can
cinterrupt csignal
interrupt-controller chardware c- cAnswerparts cof cthe ccomputer cthat cmanage cwhen cand chow
cinterrupts care chandled
nonmaskable cinterrupt c- cAnsweran curgent csignal cthat cthe cCPU cmust cdeal cwith cimmediately, clike ca
cmajor cerror
maskable c- cAnswerdescribes can cinterrupt cthat cthe cCPU ccan cchoose cto cignore cbriefly, cusually cwhen
cit's cbusy cdoing csomething cvery cimportant
interrupt cchaining c- cAnswera cmethod cwhere cthe ccomputer cchecks ca clist cof cprograms cto cfind cthe
cright cone cto chandle cthe cinterrupt
interrupt cpriority clevel c- cAnswera cway cof cdeciding cwhich cinterrupts care cmost curgent, cso cthat cthe
ccomputer ccan chandle cthem cin cthe cright corder
random-access cmemory c(RAM) c- cAnswera ccomputer's cmain cmemory cthat ccan cbe cused cquickly cto
crun cprograms
dynamic crandom-access cmemory c(DRAM) c- cAnswera ctype cof cRAM cthat cis cfast cand cused ca clot cin
ccomputers
volatile c- cAnswerdescribes cmemory cthat closes cits cinformation cwhen cthe ccomputer cturns coff
Computer Scientists Questions And Answers
Latest Updates 2025/2026 With Correct
Answers 100% With Complete Solutions
Operating system - AnswerA program that manages a computer's hardware, provides a basis for
application programs, and acts as an intermediary between the computer user and the computer
hardware
Operating system - AnswerSoftware that manages a computer's hardware, helps applications work,
and lets users interact with the computer
hardware - AnswerThe CPU, memory devices, input/output devices, and any other physical
components that are part of a computer
application program - Answera program designed for end-user execution, such as a word processor,
spreadsheet, compiler, or Web browser
ease of use - Answerthe amount of difficulty and complexity involved in using some aspect of
computing
resource utilization - Answerthe amount of a given resource (hardware or software) that is being
used
touch screen - Answera touch-sensitive screen used as a computer input device
voice recognition - Answera computer interface based on spoken commands, which the computer
parses and turns into actions
,Siri - Answerthe Apple voice-recognition system
embedded computer - Answera computer system within some other, large system (such as a car)
that performs specific, limited functions and has little or no user interface
resource allocator - Answeran operating system or application that determines how resources are to
be used
control program - Answera 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 - Answerthe idea that the number of parts on a computer chip doubles about every 18
months
kernel - Answerthe main part of an operating system that starts running as soon as a computer
turns on
system program - Answersoftware related to the operating system but designed for smaller and
more specific tasks
bus - Answera pathway that moves data and instructions between parts of a computer, like the CPU
and devices
device driver - Answersoftware that helps the operating system talk to and control hardware like
printers or keyboards
interrupt - Answera signal from a device telling the computer's brain (the CPU) that something
important needs attention right away
, interrupt vector - Answera list that shows where the computer should go to handle different kinds
of interruptions
interrupt-request line - Answera wire or circuit that lets devices send signals to the CPU to ask for
attention
interrupt-handler croutine c- cAnswera cspecial cprogram cthat cthe ccomputer cruns cwhen cit cgets can
cinterrupt csignal
interrupt-controller chardware c- cAnswerparts cof cthe ccomputer cthat cmanage cwhen cand chow
cinterrupts care chandled
nonmaskable cinterrupt c- cAnsweran curgent csignal cthat cthe cCPU cmust cdeal cwith cimmediately, clike ca
cmajor cerror
maskable c- cAnswerdescribes can cinterrupt cthat cthe cCPU ccan cchoose cto cignore cbriefly, cusually cwhen
cit's cbusy cdoing csomething cvery cimportant
interrupt cchaining c- cAnswera cmethod cwhere cthe ccomputer cchecks ca clist cof cprograms cto cfind cthe
cright cone cto chandle cthe cinterrupt
interrupt cpriority clevel c- cAnswera cway cof cdeciding cwhich cinterrupts care cmost curgent, cso cthat cthe
ccomputer ccan chandle cthem cin cthe cright corder
random-access cmemory c(RAM) c- cAnswera ccomputer's cmain cmemory cthat ccan cbe cused cquickly cto
crun cprograms
dynamic crandom-access cmemory c(DRAM) c- cAnswera ctype cof cRAM cthat cis cfast cand cused ca clot cin
ccomputers
volatile c- cAnswerdescribes cmemory cthat closes cits cinformation cwhen cthe ccomputer cturns coff
