Shadowing-Übung: FANG Interview Question | Process vs Thread - Englisch Sprechen Lernen mit Video
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What's the difference between process and thread?
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This is a common interview question.
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Let's take a look.
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To better answer this question, let's first understand what a program is.
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A program is an executable file.
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It contains the code or a set of processing instructions that is stored as a file on disk.
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When the code in the program is loaded into memory and executed by the processor, it becomes a process.
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An active process also includes the resources the program needs to run.
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These resources are managed by the operating system.
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Some examples are processor registers, program counters, stack pointers, memory pages assigned to the process for its heap and stack,
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etc. There is an important property of a process that is worth mentioning.
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Each process has its own memory address space.
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One process cannot corrupt the memory space of another process.
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This means that when one process malfunctions, other processes keep running.
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Chrome is famous for taking advantage of this process isolation by running each tab in its own process.
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When one tab misbehaves due to a bug or a malicious attack, other tabs are unaffected.
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Now what is a thread?
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A thread is the unit of execution within a process.
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A process has at least one thread.
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It is called the main thread.
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It is not uncommon for a process to have many threads.
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Each thread has its own stack.
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Earlier we mentioned registers, program counters, and stack pointers as being part of a process.
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It is more accurate to say that those things belong to a thread.
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Threads within a process share a memory address space.
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It is possible to communicate between threads using that shared memory space.
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However, one misbehaving thread could bring down the entire process.
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How does the operating system run a thread or process on a CPU?
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This is handled by context switching.
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During a context switch, one process is switched out of the CPU so another process can run.
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The operating system stores the states of the current running process, so the process can be restored and resume execution at a later point.
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It then restores the previously saved states of a different process and resumes execution for that process.
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Contact switching is expensive.
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It involves saving and loading of registers, switching out memory pages, and updating various kernel data structures.
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Switching execution between threads also requires context switching.
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It is generally faster to switch context between threads than between processes.
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There are fewer states to track, and more importantly, since threads share the same memory address space,
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there is no need to switch out virtual memory pages, which is one of the more expensive operations during a context switch.
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Contact switching is so costly, there are other mechanisms to try to minimize it, some examples of fibers and coroutines.
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These mechanisms trace complexity for even lower contact switching cost.
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In general, they are cooperatively scheduled, that is, they must yield control for others to run.
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In other words, the application itself handles task scheduling.
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It is the responsibility of the application to make sure a long -running task is broken up by yielding periodically.
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This concludes our discussion of process and threads.
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If you'd like to learn more about system design, check out our books and weekly newsletter.
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Please subscribe if you learn something new.
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Thank you so much and we'll see you next time.
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Wortschatz und Sprechhinweise zu dieser Lektion
Diese Sprechübung basiert auf dem Video „FANG Interview Question“. Diese Wörter kommen am häufigsten vor: process, thread, memory, switching, program. Dieses Video enthält 47 Sätze und 565 Wörter zum Nachsprechen. Der gesprochene Teil dauert 3:41. Der Sprecher spricht in natürlichem Tempo, etwa 153 Wörter pro Minute, ähnlich wie im Alltagsgespräch. Nur 78 % der Wörter gehören zu den 3.000 häufigsten im Englischen, der Wortschatz ist also anspruchsvoll.
Wichtiger Wortschatz in diesem Video
15 lernenswerte Wörter aus dem Video, mit Aussprache und Bedeutung:
| Wort | Aussprache | Bedeutung |
|---|---|---|
| thread Substantiv | /ˈθɹɛd/ | Faden, Garn |
| execution Substantiv | /ˌɛk.sɪˈkjuː.ʃən/ | Ausführung |
| stack Substantiv | /stæk/ | Stapel, Feime |
| resource Substantiv | /ɹɪˈzɔːs/ | Ressource, Mittel |
| mechanism Substantiv | /ˈmɛk.ə.nɪ.zəm/ | Mechanismus |
| restore Verb | /ɹɪˈstoɹ/ | wiederherstellen, restaurieren |
| yield Verb | /jiːld/ | (Ertrag) abwerfen, bringen |
| resume Verb | /ˈɹɛz.ə.meɪ/ | wiederaufnehmen, fortsetzen |
| pointer Substantiv | /ˈpɔɪn.təɹ/ | Zeigestock, Zeigestab |
| belong Verb | /bɪˈlɒŋ/ | hingehören, dazugehören |
| virtual Adjektiv | /ˈvɜɹt͡ʃuəl/ | virtuell, eigentlich |
| fewer | /ˈfjuː.ɚ/ | weniger |
| involve Verb | /ɪnˈvɑlv/ | verbunden sein (mit), mit sich bringen |
| communicate Verb | /kəˈmjuːnɪkeɪt/ | mitteilen, übermitteln |
| trace Substantiv | /tɹeɪs/ | aufzeichnen, aufspüren |
Phrasal Verbs, die du hören wirst
| Wort | Bedeutung |
|---|---|
| check out Verb | überprüfen |
Aussprache, auf die du achten solltest
- Die Laute „sh“ und „zh“: execution /ˌɛk.sɪˈkjuː.ʃən/, instruction /ɪnˈstɹʌkʃən/, isolation /ˌaɪsəˈleɪʃən/, malicious /məˈlɪʃəs/, malfunction /ˌmælˈfʌŋk.ʃən/
- Lange Wörter – auf die Betonung achten: execution /ˌɛk.sɪˈkjuː.ʃən/, mechanism /ˈmɛk.ə.nɪ.zəm/, communicate /kəˈmjuːnɪkeɪt/, importantly /ɪmˈpɔɹ.tənt.li/, complexity /kəmˈplɛk.sɪ.ti/
Laute, die Deutschsprachigen schwerfallen:
- Stimmhafter Auslaut — /b/, /d/, /g/, /z/, /v/ am Wortende nicht verhärten: thread /ˈθɹɛd/, yield /jiːld/, involve /ɪnˈvɑlv/, subscribe /səbˈskɹaɪb/, tab /tæb/
- /æ/ — offener als „ä“: stack /stæk/, tab /tæb/, malfunction /ˌmælˈfʌŋk.ʃən/
So übst du mit diesem Video
- Höre dir das ganze Video einmal an, ohne zu sprechen, und notiere die Wörter, die du nicht kennst.
- Beginne mit 0,75-facher Geschwindigkeit, sprich Satz für Satz nach und wechsle zur normalen Geschwindigkeit, sobald es leichtfällt.
- Nimm dich auf und vergleiche mit dem Original; achte dabei auf Wörter wie thread, execution, stack.
Was ist die Shadowing-Technik?
Shadowing ist eine wissenschaftlich fundierte Sprachlerntechnik, die ursprünglich für die professionelle Dolmetscherausbildung entwickelt und durch den Polyglotten Dr. Alexander Arguelles populär gemacht wurde. Die Methode ist einfach aber wirkungsvoll: Du hörst englisches Audio von Muttersprachlern und wiederholst es sofort laut — wie ein Schatten, der dem Sprecher mit nur 1–2 Sekunden Verzögerung folgt. Anders als passives Hören oder Grammatikübungen zwingt Shadowing dein Gehirn und deine Mundmuskulatur, gleichzeitig echte Sprachmuster zu verarbeiten und zu reproduzieren. Studien zeigen, dass es Aussprachegenauigkeit, Intonation, Rhythmus, verbundene Sprache, Hörverständnis und Sprechflüssigkeit signifikant verbessert — was es zu einer der effektivsten Methoden für die IELTS Speaking-Vorbereitung und reale englische Kommunikation macht.