운영체제 정리

2022. 7. 2. 19:35Β·πŸ“ Computer Science/✏ OS

운영체제 μ •리

 

1. 컴퓨터 μ‹œμŠ€ν…œμ˜ ꡬ성

2020.04.23 - [πŸ“ Computer Science/✏ OS] - 컴퓨터 μ‹œμŠ€ν…œμ˜ ꡬ성

 

컴퓨터 μ‹œμŠ€ν…œμ˜ ꡬ성

컴퓨터 μ‹œμŠ€ν…œμ€ λ°μ΄ν„°λ₯Ό μ²˜λ¦¬ν•˜λŠ” λ¬Όλ¦¬μ  κΈ°κ³„ μž₯치인 ν•˜λ“œμ›¨μ–΄μ™€ νŠΉλ³„ν•œ μž‘업을 μ§€μ‹œν•˜λ €κ³  λͺ…λ Ήμ–΄λ‘œ μž‘μ„±ν•œ ν”„λ‘œκ·Έλž¨μΈ μ†Œν”„νŠΈμ›¨μ–΄λ‘œ κ΅¬μ„±λ˜μ–΄ μžˆλ‹€. ν•˜λ“œμ›¨μ–΄ ν”„λ‘œμ„Έμ„œ, λ©”λͺ¨

tech-interview.tistory.com

 

마우슀둜 ν”„λ‘œκ·Έλž¨μ„ ν΄λ¦­ν–ˆμ„ λ•Œ μ»΄ν“¨ν„°μ—μ„œ μΌμ–΄λ‚˜λŠ” λͺ¨λ“  일에 κ΄€ν•΄μ„œ μ„€λͺ…

  1. ν‚€λ³΄λ“œμ—μ„œ μ‚¬μš©μž μž…λ ₯이 λ“€μ–΄μ˜€λ©΄ ν‚€λ³΄λ“œ μ»¨νŠΈλ‘€λŸ¬κ°€ μΈν„°λŸ½νŠΈλ₯Ό λ°œμƒμ‹œμΌœ CPUμ—κ²Œ ν‚€κ°€ μž…λ ₯λ˜μ—ˆλ‹€λŠ” μ‚¬μ‹€μ„ μ•Œλ €μ€€λ‹€.
  2. CPUλŠ” ν˜„μž¬ μˆ˜ν–‰ μ€‘μ΄λ˜ μž‘μ—…μ˜ μƒνƒœλ₯Ό μ €μž₯ν•˜κ³  μΈν„°λŸ½νŠΈ μš”μ²­μ„ μ²˜λ¦¬ν•˜κΈ° μœ„ν•΄ OS 내에 μ •μ˜λœ ν‚€λ³΄λ“œ μΈν„°λŸ½νŠΈ 처리 루틴을 μ°Ύμ•„κ°„λ‹€.
  3. ν‚€λ³΄λ“œ μΈν„°λŸ½νŠΈ 처리 루틴은 ν‚€λ³΄λ“œλ‘œ λΆ€ν„° μž…λ ₯받은 λ‚΄μš©μ„ λ©”λͺ¨λ¦¬μ˜ νŠΉμ • 뢀뢄에 μ €μž₯ν•΄ ν•΄λ‹Ή ν”„λ‘œκ·Έλž¨μ—κ²Œ ν‚€λ³΄λ“œ μž…λ ₯이 λ“€μ–΄μ™”μŒμ„ μ•Œλ¦¬λ©° μΈν„°λŸ½νŠΈ 처리λ₯Ό μ™„λ£Œν•œλ‹€.
  4. μΈν„°λŸ½νŠΈ μ²˜λ¦¬κ°€ λλ‚˜λ©΄ μΈν„°λŸ½νŠΈκ°€ λ°œμƒν•˜κΈ° μ§μ „ μƒνƒœλ₯Ό λ³΅κ΅¬μ‹œμΌœ μ€‘λ‹¨λ˜μ—ˆλ˜ μž‘업을 μž¬κ°œν•œλ‹€.

 

2. ν”„λ‘œμ„ΈμŠ€μ™€ μŠ€λ ˆλ“œ

2020.04.23 - [πŸ“ Computer Science/✏ OS] - ν”„λ‘œμ„ΈμŠ€μ™€ μŠ€λ ˆλ“œ

 

ν”„λ‘œμ„ΈμŠ€μ™€ μŠ€λ ˆλ“œ

1. ν”„λ‘œμ„ΈμŠ€(Process) μ‹€ν–‰ 쀑인 ν”„λ‘œκ·Έλž¨μœΌλ‘œ λ””μŠ€ν¬λ‘œλΆ€ν„° 메인 λ©”λͺ¨λ¦¬μ— μ μž¬λ˜μ–΄ CPU의 할당을 받을 수 μžˆλŠ” 것이닀. μš΄μ˜μ²΄μ œλ‘œλΆ€ν„° μ£Όμ†Œ 곡간, 파일, λ©”λͺ¨λ¦¬ 등을 ν• λ‹Ήλ°›μœΌλ©° 이것듀을 μ΄μΉ­ν•˜

tech-interview.tistory.com

2020.06.28 - [πŸ“ Computer Science/✏ OS] - λ©€ν‹° ν”„λ‘œμ„Έμ‹±, λ©€ν‹° ν”„λ‘œκ·Έλž˜λ°, λ©€ν‹° νƒœμŠ€ν‚Ή

 

λ©€ν‹° ν”„λ‘œμ„Έμ‹±, λ©€ν‹° ν”„λ‘œκ·Έλž˜λ°, λ©€ν‹° νƒœμŠ€ν‚Ή

CPU μ½”μ–΄μ˜ κ΄€μ μ—μ„œ μƒκ°ν•˜μ—¬ λΆ„λ₯˜ν•œλ‹€. 1. λ©€ν‹° ν”„λ‘œμ„Έμ‹±(Multi-processing) CPU μ½”μ–΄ μ—¬λŸ¬ 개둜 μ—¬λŸ¬ 개의 ν”„λ‘œμ„ΈμŠ€λ₯Ό μˆ˜ν–‰ν•˜λŠ” 것 λ©€ν‹° μ“°λ ˆλ”©(Multi-threading): ν•˜λ‚˜μ˜ ν”„λ‘œμ„ΈμŠ€ 내에 μ—¬λŸ¬ 개의 μŠ€λ ˆλ“œ

tech-interview.tistory.com

 

3. ν”„λ‘œμ„ΈμŠ€ μ£Όμ†Œ 곡간과 κΈ°μ–΅ 클래슀

2020.04.23 - [πŸ“ Computer Science/✏ OS] - ν”„λ‘œμ„ΈμŠ€ μ£Όμ†Œ 곡간과 κΈ°μ–΅ 클래슀

 

ν”„λ‘œμ„ΈμŠ€ μ£Όμ†Œ 곡간과 κΈ°μ–΅ 클래슀

1. ν”„λ‘œμ„ΈμŠ€ μ£Όμ†Œ 곡간 ν”„λ‘œκ·Έλž¨μ΄ CPUμ—μ„œ λͺ…령을 μˆ˜ν–‰ν•˜λ €λ©΄ μˆ˜ν–‰ν•˜λ €λŠ” μ£Όμ†Œ μ˜μ—­μ΄ λ©”λͺ¨λ¦¬μ— μ˜¬λΌκ°€ μžˆμ–΄μ•Ό ν•˜λŠ”λ° μ΄ μ£Όμ†Œ μ˜μ—­μ€ 크게 μŠ€νƒ, νž™, 데이터, μ½”λ“œ μ˜μ—­μœΌλ‘œ κ΅¬λΆ„λœλ‹€. μŠ€νƒ: 함

tech-interview.tistory.com

 

4. ν”„λ‘œμ„ΈμŠ€ μŠ€μΌ€μ€„λŸ¬

2020.04.23 - [πŸ“ Computer Science/✏ OS] - ν”„λ‘œμ„ΈμŠ€ μŠ€μΌ€μ€„λŸ¬

 

ν”„λ‘œμ„ΈμŠ€ μŠ€μΌ€μ€„λŸ¬

1. μŠ€μΌ€μ€„λ§(Scheduling) ν”„λ‘œμ„ΈμŠ€κ°€ μƒμ„±λ˜μ–΄ 싀행될 λ•Œ ν•„μš”ν•œ μ‹œμŠ€ν…œμ˜ μ—¬λŸ¬ μžμ›μ„ ν•΄λ‹Ή ν”„λ‘œμ„ΈμŠ€μ—κ²Œ ν• λ‹Ήν•˜λŠ” μž‘μ—…μ΄λ‹€. 1) μž₯κΈ°(μž‘μ—…) μŠ€μΌ€μ€„λ§ λ©”λͺ¨λ¦¬μ™€ λ””μŠ€ν¬ μ‚¬μ΄μ˜ μŠ€μΌ€μ€„λ§μ„ λ‹΄λ‹Ήν•œλ‹€

tech-interview.tistory.com

 

5. ν”„λ‘œμ„ΈμŠ€ 동기화

2020.04.23 - [πŸ“ Computer Science/✏ OS] - ν”„λ‘œμ„ΈμŠ€ 동기화

 

ν”„λ‘œμ„ΈμŠ€ 동기화

ν”„λ‘œμ„ΈμŠ€ 동기화 1. μŠ€λ ˆλ“œ 세이프(Thread Safe) λ©€ν‹° μŠ€λ ˆλ“œ ν”„λ‘œκ·Έλž˜λ°μ—μ„œ 일반적으둜 μ–΄λ–€ ν•¨μˆ˜λ‚˜ λ³€μˆ˜, ν˜Ήμ€ 객체가 μ—¬λŸ¬ μŠ€λ ˆλ“œλ‘œλΆ€ν„° λ™μ‹œμ— 접근이 이루어져도 ν”„λ‘œκ·Έλž¨μ˜ 싀행에 λ¬Έμ œκ°€

tech-interview.tistory.com

 

6. 동기와 비동기

2020.05.01 - [πŸ“ Computer Science/✏ OS] - 동기와 비동기 & Blockingκ³Ό Non-Blocking

 

동기와 비동기 & Blockingκ³Ό Non-Blocking

동기와 λΉ„동기 & Blockingκ³Ό Non-Blocking 1. 동기(Synchronous)와 비동기(Asynchronous) ν•¨μˆ˜λ₯Ό μ‹€ν–‰μ‹œν‚΄κ³Ό λ™μ‹œμ— λ°˜ν™˜ 값이 κΈ°λŒ€λ˜λŠ” κ²½μš°λŠ” λ™κΈ°λΌ ν‘œν˜„ν•˜κ³  κ·Έλ ‡μ§€ μ•Šμ€ κ²½μš°λŠ” λΉ„동기라고 ν‘œν˜„ν•œλ‹€.

tech-interview.tistory.com

 

7. λ™μ‹œμ„±κ³Ό 병렬성

2020.05.03 - [πŸ“ Computer Science/✏ OS] - λ™μ‹œμ„±(Concurrency)κ³Ό 병렬성(Parallelism)

 

λ™μ‹œμ„±(Concurrency)κ³Ό 병렬성(Parallelism)

λ™μ‹œμ„±(Concurrency)κ³Ό λ³‘λ ¬μ„±(Parallelism) 1. λ™μ‹œμ„±(Concurrency) μ‹±κΈ€ μ½”μ–΄μ—μ„œ λ©€ν‹° μŠ€λ ˆλ“œλ₯Ό λ™μž‘μ‹œν‚€κΈ° μœ„ν•œ 방식 λ©€ν‹° νƒœμŠ€ν‚Ήμ„ μœ„ν•΄ μ—¬λŸ¬ 개의 μŠ€λ ˆλ“œκ°€ λ²ˆκ°ˆμ•„κ°€λ©΄μ„œ μ‹€ν–‰λ˜λŠ” μ„±μ§ˆμ„ λ§ν•œλ‹€. 각

tech-interview.tistory.com

 

8. ꡐ착 μƒνƒœ

2020.05.13 - [πŸ“ Computer Science/✏ OS] - κ΅μ°©μƒνƒœ(Deadlock)

 

κ΅μ°©μƒνƒœ(Deadlock)

κ΅μ°©μƒνƒœ(Deadlock) λ‘˜ μ΄μƒμ˜ ν”„λ‘œμ„ΈμŠ€κ°€ 곡유 μžμ›μ„ λ¬΄ν•œμ • 기닀리고 있고 곡유 μžμ›μ„ μ‚¬μš© 쀑인 ν”„λ‘œμ„ΈμŠ€λŠ” μ§„μž… λŒ€κΈ° 쀑인 ν”„λ‘œμ„ΈμŠ€κ°€ μ§„ν–‰λΌμ•Όλ§Œ λΉ μ Έλ‚˜μ˜¬ 수 μžˆλŠ” 상황 1. 4κ°€μ§€ 쑰건 μƒν˜Έ

tech-interview.tistory.com

 

9. λ©”λͺ¨λ¦¬ 관리

2020.05.13 - [πŸ“ Computer Science/✏ OS] - λ©”λͺ¨λ¦¬(κΈ°μ–΅μž₯치) 관리

 

λ©”λͺ¨λ¦¬(κΈ°μ–΅μž₯치) 관리

1. λ©”λͺ¨λ¦¬ 관리 μ „λž΅ ν”„λ‘œκ·Έλž¨μ΄λ‚˜ 데이터λ₯Ό μ£ΌκΈ°μ–΅μž₯μΉ˜μ— μ μž¬μ‹œν‚€λŠ” μ‹œκΈ°, 적재 μœ„μΉ˜ 등을 μ§€μ •ν•˜μ—¬ ν•œμ •λœ μ£ΌκΈ°μ–΅μž₯치의 곡간을 효율적으둜 μ‚¬μš©ν•˜κΈ° μœ„ν•œ 것이닀. 1) λ°˜μž…(Fetch) μ „λž΅ 보쑰기

tech-interview.tistory.com

2020.05.18 - [πŸ“ Computer Science/✏ OS] - μΊμ‹œ λ©”λͺ¨λ¦¬(Cache Memory)

 

μΊμ‹œ λ©”λͺ¨λ¦¬(Cache Memory)

μΊμ‹œ λ©”λͺ¨λ¦¬ μ£ΌκΈ°μ–΅μž₯μΉ˜μ— μ €μž₯된 λ‚΄μš©μ˜ 일뢀λ₯Ό μž„μ‹œλ‘œ μ €μž₯ν•΄λ‘λŠ” κΈ°μ–΅μž₯치둜 속도가 λΉ λ₯Έ μž₯μΉ˜μ™€ 느린 μž₯치 κ°„μ˜ 속도차에 λ”°λ₯Έ 병λͺ© ν˜„μƒμ„ 쀄이기 μœ„ν•œ λ²”μš© λ©”λͺ¨λ¦¬μ΄λ‹€. 1. μ§€μ—­μ„±(Locality)

tech-interview.tistory.com

 

μ €μž‘μžν‘œμ‹œ (μƒˆμ°½μ—΄λ¦Ό)
'πŸ“ Computer Science/✏ OS' μΉ΄ν…Œκ³ λ¦¬μ˜ λ‹€λ₯Έ κΈ€
  • λ©€ν‹° ν”„λ‘œμ„Έμ‹±, λ©€ν‹° ν”„λ‘œκ·Έλž˜λ°, λ©€ν‹° νƒœμŠ€ν‚Ή
  • μΊμ‹œ λ©”λͺ¨λ¦¬(Cache Memory)
  • λ©”λͺ¨λ¦¬(κΈ°μ–΅μž₯치) 관리
  • κ΅μ°©μƒνƒœ(Deadlock)
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