mirror of
https://github.com/jackyzha0/quartz.git
synced 2025-12-23 21:04:07 -06:00
24 lines
986 B
Markdown
24 lines
986 B
Markdown
|
||
1. **Punch cards** – physical cards with holes. Early computers read data this way.![[Screenshot 2025-07-23 at 12.08.22.png | 400]]
|
||
|
||
2. **Magnetic media**:
|
||
- First: **Floppy disks**
|
||
![[Screenshot 2025-07-23 at 12.08.48.png | 400]]
|
||
- Then: **Hard disks** (faster, more storage)
|
||
![[Screenshot 2025-07-23 at 12.09.30.png]]
|
||
3. **1960s**: First **Database Management Systems (DBMSs)** created:
|
||
- Charles W. Bachman developed the **Integrated Database System**
|
||
- IBM developed **IMS**
|
||
4. **1970s**:
|
||
- IBM created **SQL** (Structured Query Language)
|
||
- Modern relational databases (RDBMS) were born
|
||
5. **20th century:** Many RDBMS's
|
||
- ORACLE, Microsoft's SQLServer, IBM's DB2, MySQL, SYBASE...
|
||
![[Screenshot 2025-07-23 at 12.10.02.png]]
|
||
|
||
|
||
##### Hadoop history
|
||
![[Screenshot 2025-07-23 at 12.16.32.png | 200]]
|
||
2005 - Started by ***Doug Cutting*** at Yahoo!
|
||
[[Hadoop]] is an [[Open Source]] Apache project
|
||
Benefits: free, flexible, community-supported. |