UNIX

UNIX

1. Understanding

UNIX is an operating system that is used as the default operating system on different types of computers, especially good as a mini computer workstation or server (a system

that provides services to the network). Due to a unix server, move work from one type of computer to another is easy.

Unix was designed as an operating system that is portable, multi-tasking, multi-user, hierarchical file system and utilities.

The advantage gained by using a UNIX system connected kesebuah network system are :

A. Sharing computer resources

Computer resources are shared include :

• CPU and memory allocation,
  CPU / memory being silent (unused) can be used by another system that is busy.
• Data storage / disk,
  Disk originally scattered all computers with the same utility can now be combined into a large disk unit and shared.
• Printer / printer and program / utility
  Printing / printing can be classified based on priority (immediate, not immediately) or print quality (laser printer, printer LQ, line printer).

B. Improved reliability.

Computers in a network is more reliable than the stand-alone computer. If there is a computer that does not work, its role was replaced by another computer. The system can be set / controlled by the user does not know that the computer used is being replaced by another computer. The disk storage system can set the degree of safety. As well as CPU, disk systems are not functioning replaced by another system without being noticed by the user.

C. Savings.

Improved reliability and the use of resources together generate operating cost savings. Price 10 10 MIPS computer is much cheaper than one computer 100 MIPS. However, the ability of the tenth 10 MIPS computer can almost match the ability of the computer 100 MIPS if done high utilization. Other savings come from the use of the printer server and file server (1 system data or disk for multiple computers).

2. History

Unix is a computer operating system developed by AT & T Bell Labs in the 1960s and 1970s. In 1960, Massachusetts Institute of Technology, AT & T Bell Labs, and General Electric to work in a eksprimental operating system called Multics (Multiplexed Information and Computing Service)/

In Indonesia Unix is used as an application server, the product on the market, among others, IBM AIX, HP-UX, Sun Solaris. Each of these products generally has its own market as Sun Solaris used in mobile telecommunications operator, HP UX on manufacturing and distribution. Function as a Unix workstation less popular considering the price is expensive.

3. Type - the type of UNIX

UNIX is an operating system developed by many parties. Any party that develops UNIX, add proprietary technologies into UNIX, which even though it is outside the standard, capable of making the UNIX operating system more robust or more reliable. Type - the type of Unix include :

1. A/UX
2. Domain/X
3. Darwin
4. CTIX
5. Distrix
6. UniCOS
7. DG/UX
8. Digital UNIX
9. Ultrix
10. CLIX
11. HP/UX
12. Tru64
13. AIX
14. Coherent
15. XENIX
16. DVIX
17. UnixWare
18. SCO UNIX
19. SCO XENIX
20. SCO OpenServer
21. Dynix
22. SINIX
23. IRIX
24. SunOS
25. Solaris
26. Eunice
27. Uniplus+
28. BSD UNIX
29. BSD/I
30. OSF/1
31. GNU/Linux
32. GNU/Hurd
33. FreeBSD
34. NetBSD
35. OpenBSD
36. NextStep
37. Minix
38. Mach
39. UNIX System V
40. QNX

Including the operating system's earliest existing computers. Is the parent of the Linux operating system.