D386 Hardware and Operating Systems COPY – exam with answers

D386 Hardware and Operating Systems |\ |\ |\ |\ |\




COPY – exam with answers |\ |\ |\ |\




What is an Operating System (OS) - CORRECT ANSWERS
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✔✔Operating systems and their collective features enable the |\ |\ |\ |\ |\ |\ |\ |\


computer's hardware devices and application software to work |\ |\ |\ |\ |\ |\ |\ |\


together. It organizes and manages the major function of the
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computer, such as I/O, processing, storage, and memory. These
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OS are considered proprietary system software, each with its own
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customized features such as graphical user interfaces (GUIs), 32
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bit/64 bit OS and RAM (Random Access Memory).
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What are the categories of OS? - CORRECT ANSWERS ✔✔Single
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user systems
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Single-User, multitasking systems |\ |\




Mobile device OS |\ |\




Mainframe systems |\




Network server systems |\ |\




Embedded control |\




Distributed systems |\




Real-Time systems. |\




Single user systems - CORRECT ANSWERS ✔✔are considered
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multitasking systems, they are found in laptops and workstations. |\ |\ |\ |\ |\ |\ |\ |\

,Mobile device OS - CORRECT ANSWERS ✔✔are for small handheld
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devices such as e readers, phones, and tables, these can provide
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single user systems and multitasking at a scaled down level due
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to power and memory.
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Mainframe systems - CORRECT ANSWERS ✔✔manage large scale |\ |\ |\ |\ |\ |\ |\ |\


platforms and enterprise environments that require large
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amounts of storage, memory, and computing. |\ |\ |\ |\ |\




Network server systems - CORRECT ANSWERS ✔✔designed and
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named for a specific purpose such as database servers, web
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servers and print servers. |\ |\ |\




Embedded control systems - CORRECT ANSWERS ✔✔specialized |\ |\ |\ |\ |\ |\ |\


OS designed to control a single piece of equipment or machinery.
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Distributed systems - CORRECT ANSWERS ✔✔geared toward |\ |\ |\ |\ |\ |\ |\


allocating processing power, programs, files, and database to
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network users. |\




Real-Time systems - CORRECT ANSWERS ✔✔Used for |\ |\ |\ |\ |\ |\ |\


instrumentation where system responses are time sensitive. |\ |\ |\ |\ |\ |\




What is source code? - CORRECT ANSWERS ✔✔Is the actual code
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that defines how a piece of software works. It can be open source
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or closed source (meaning only that the owner/developer can
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modify or examine the code)|\ |\ |\ |\

,What is a shell? - CORRECT ANSWERS ✔✔A program that runs on
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top of the OS and allows the user to issue command through a
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set of menus or another interface.
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What is cooperative multitasking? - CORRECT ANSWERS ✔✔It's a
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method that depends on the application itself to be responsible
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for using the processor and then freeing it for access by other
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applications.


What is preemptive multitasking? - CORRECT ANSWERS ✔✔It's a
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multitasking method in which the OS allots each application a |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


certain amount of processor time and then forcibly takes back
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control and give application or task the access to the processor.
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What is multithreading? - CORRECT ANSWERS ✔✔is the ability of
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a single application to have multiple requests into the processor
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at one time. This results in faster application performance
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because it allows a program to do many things at once.
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What is ARM? - CORRECT ANSWERS ✔✔It's an OS that uses a
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reduced instruction set computing (RISC) instruction commonly
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found in tables and phones processors. ARM-v8 can support and
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64-bit processor. |\




What is the File Management system and what does it do? -
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CORRECT ANSWERS ✔✔Allocates and manages the secondary |\ |\ |\ |\ |\ |\ |\


storage space and translates file requests from their name-based
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from into I/O request.
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, - - CORRECT ANSWERS ✔✔-
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What are the 4 operating system categories? - CORRECT
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ANSWERS ✔✔server, |\




workstation, mobile, or cloud-based operating systems. |\ |\ |\ |\ |\




Server operating systems - CORRECT ANSWERS ✔✔allow for the
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sharing of information and applications by workstation operating
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systems. The operating system is optimized for background
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processes used for access by clients, as opposed to the
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foreground processes, such as the GUI. |\ |\ |\ |\ |\




Workstation - CORRECT ANSWERS ✔✔operating systems allow |\ |\ |\ |\ |\ |\ |\


end users to access information and applications on server
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operating systems as well as independently run applications
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locally. The operating system is optimized for foreground
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processes, such as the GUI. Background sharing is usually limited
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to a specific number of users; workstation versions of Microsoft
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Windows are limited to 10 concurrent users.
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Mobile operating - CORRECT ANSWERS ✔✔systems are found on
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mobile devices such as phones and tablets. The mobile operating
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system is generally optimized for touch-based devices where one
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program is used at a time.
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Cloud-Based - CORRECT ANSWERS ✔✔operating systems are a |\ |\ |\ |\ |\ |\ |\ |\


new breed of operating system that has emerged from the
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mobile computing era. Cloud-based operating systems are also
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considered stateless operating systems since personal data is not
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primarily stored on the device but in the cloud. Mobile operating
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