5 Reading Facts
5 Reading Facts
This is my first class on Linux Systems and everything that I have learned so far in this class is basically new facts to me. Below are some the facts that stood out to me from the textbook.
1. The Linux kernel was developed by Finnish undergraduate student Linus Torvalds, who used the Internet to make the source code immediately available to others for free. Torvalds released Linux version 0.01 in September 1991.
2. The UNIX system was developed by researchers who needed a set of modern com- puting tools to help them with their projects. The system allowed a group of people working together on a project to share selected data and programs while keeping other information private.
3. Two professors created their own stripped-down UNIX look-alikes for educational purposes: Doug Comer created XINU, and Andrew Tanenbaum created MINIX.
Linus Torvalds created Linux to counteract the shortcomings in MINIX.
4. Ken Thompson wrote the UNIX operating system in 1969 in PDP-7 assembly lan- guage. Assembly language is machine-dependent: Programs written in assembly language work on only one machine or, at best, on one family of machines. For this reason, the original UNIX operating system could not easily be transported to run on other machines: It was not portable.
5. To make UNIX portable, Thompson developed the B programming language, a machine-independent language, from the BCPL language. Dennis Ritchie developed the C programming language by modifying B and, with Thompson, rewrote UNIX in C in 1973.
This is my first class on Linux Systems and everything that I have learned so far in this class is basically new facts to me. Below are some the facts that stood out to me from the textbook.
1. The Linux kernel was developed by Finnish undergraduate student Linus Torvalds, who used the Internet to make the source code immediately available to others for free. Torvalds released Linux version 0.01 in September 1991.
2. The UNIX system was developed by researchers who needed a set of modern com- puting tools to help them with their projects. The system allowed a group of people working together on a project to share selected data and programs while keeping other information private.
3. Two professors created their own stripped-down UNIX look-alikes for educational purposes: Doug Comer created XINU, and Andrew Tanenbaum created MINIX.
Linus Torvalds created Linux to counteract the shortcomings in MINIX.
4. Ken Thompson wrote the UNIX operating system in 1969 in PDP-7 assembly lan- guage. Assembly language is machine-dependent: Programs written in assembly language work on only one machine or, at best, on one family of machines. For this reason, the original UNIX operating system could not easily be transported to run on other machines: It was not portable.
5. To make UNIX portable, Thompson developed the B programming language, a machine-independent language, from the BCPL language. Dennis Ritchie developed the C programming language by modifying B and, with Thompson, rewrote UNIX in C in 1973.