Business Unit or Product Name
© 2003 IBM CorporationIBM Confidential
A brief look at IBM mainframe history
24-08-2007
Siva...
2
Business Unit or Product Name
© 200 3 IBMIBM Confidential
A brief look at IBM
mainframe history
3
Business Unit or Product Name
© 200 3 IBMIBM Confidential
System 360
4
Business Unit or Product Name
© 200 3 IBMIBM Confidential
System 360
On April 7, 1964 IBM introduced System/360, a famil...
5
Business Unit or Product Name
© 200 3 IBMIBM Confidential
System 370
6
Business Unit or Product Name
© 200 3 IBMIBM Confidential
System 370
In the summer of 1970, IBM announced a family of ma...
7
Business Unit or Product Name
© 200 3 IBMIBM Confidential
3081 processor complex
8
Business Unit or Product Name
© 200 3 IBMIBM Confidential
3081 processor complex
1980 saw the introduction of the 3081 p...
9
Business Unit or Product Name
© 200 3 IBMIBM Confidential
Pundits thought mainframes will not exist 1990.
Some industry ...
10
Business Unit or Product Name
© 200 3 IBMIBM Confidential
S390 G5 and G6
11
Business Unit or Product Name
© 200 3 IBMIBM Confidential
S390 G5 and G6
IBM introduced the concept of System Clusterin...
12
Business Unit or Product Name
© 200 3 IBMIBM Confidential
zSeries mainframes
In October 2000, IBM announced the first g...
13
Business Unit or Product Name
© 200 3 IBMIBM Confidential
zSeries mainframes
14
Business Unit or Product Name
© 200 3 IBMIBM Confidential
Z 990
15
Business Unit or Product Name
© 200 3 IBMIBM Confidential
Z 990
zSeries is based on the 64-bit z/Architecture, which is...
16
Business Unit or Product Name
© 200 3 IBMIBM Confidential
z9-109
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Business Unit or Product Name
© 200 3 IBMIBM Confidential
z9-109
The latest generation of mainframes, the IBM System z9...
18
Business Unit or Product Name
© 200 3 IBMIBM Confidential
z9-109
The z9-109 server continues such growth by providing a...
19
Business Unit or Product Name
© 200 3 IBMIBM Confidential
Few Technologies on mainframe.
AS
AS/400
Assembler
Brio
Chang...
20
Business Unit or Product Name
© 200 3 IBMIBM Confidential
Here am trying to list the companies who deal with
mainframes...
21
Business Unit or Product Name
© 200 3 IBMIBM Confidential
THANK YOU
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A brief look at ibm mainframe history

  1. 1. Business Unit or Product Name © 2003 IBM CorporationIBM Confidential A brief look at IBM mainframe history 24-08-2007 Siva Prasanth Rentala IGSI, TPO,PUNE.
  2. 2. 2 Business Unit or Product Name © 200 3 IBMIBM Confidential A brief look at IBM mainframe history
  3. 3. 3 Business Unit or Product Name © 200 3 IBMIBM Confidential System 360
  4. 4. 4 Business Unit or Product Name © 200 3 IBMIBM Confidential System 360 On April 7, 1964 IBM introduced System/360, a family of five increasingly powerful computers that ran the same operating system and could use the same44 peripheral devices. For the first time, companies could run mission-critical applications for business on a highly secure platform. In 1969, Apollo 11's successful landing on the moon was supported by several. System 360s, Information Management System (IMS) 360 and IBM software. In 1968, IBM introduced Customer Information Control System (CICS). It allowed workplace personnel to enter, update, and retrieve data online. To date, CICS remains one of the industry's most popular transaction monitors.
  5. 5. 5 Business Unit or Product Name © 200 3 IBMIBM Confidential System 370
  6. 6. 6 Business Unit or Product Name © 200 3 IBMIBM Confidential System 370 In the summer of 1970, IBM announced a family of machines with an enhanced instruction set, called System/370. These machines were capable of using more than one processor in the same system (initially two), sharing the memory. Through the 1970s the machines got bigger and faster, and multiprocessor systems became common. Able to run System/360 programs, thus easing the upgrade burden for customers, System/370 was also one of the first lines of computers to include “virtual memory” technology.
  7. 7. 7 Business Unit or Product Name © 200 3 IBMIBM Confidential 3081 processor complex
  8. 8. 8 Business Unit or Product Name © 200 3 IBMIBM Confidential 3081 processor complex 1980 saw the introduction of the 3081 processor. The 3081 offered a two- fold increase in internal performance from the previous mainframe processor, the 3033. It also featured Thermal Conduction Modules (TCMs) that significantly reduce space, cooling, and power requirements.
  9. 9. 9 Business Unit or Product Name © 200 3 IBMIBM Confidential Pundits thought mainframes will not exist 1990. Some industry pundits, however, didn't think the mainframe would survive the early 1990s. They predicted that the rapid growth in personal computers and small servers would render “Big Iron” (industry jargon for mainframe) obsolete. But IBM believed that serious, security-rich, industrial-strength computing would always be in demand, hence System/390. IBM stuck with the mainframe, but reinvented it from the inside, infusing it with an entirely new technology core and reducing its price.
  10. 10. 10 Business Unit or Product Name © 200 3 IBMIBM Confidential S390 G5 and G6
  11. 11. 11 Business Unit or Product Name © 200 3 IBMIBM Confidential S390 G5 and G6 IBM introduced the concept of System Clustering and Data Sharing, and announced System/390 Parallel Sysplex, which made possible very high levels of system availability. Still in 1999, IBM introduced the first enterprise server to use IBM's innovative copper chip technology. The synergy helped extend customers' ability to handle millions of e-business workload transactions and large- scale Enterprise Resource Planning applications. A new concept arose at that time, the possibility to increase the machines’ capacity without stopping them. FICON, a new fiber optic channel was introduced with up to eight times the capacity of ESCON channels. Also in 1999, Linux appeared on System/390 for the first time. Also in 1999, Linux appeared on System/390 for the first time.
  12. 12. 12 Business Unit or Product Name © 200 3 IBMIBM Confidential zSeries mainframes In October 2000, IBM announced the first generation of the zSeries mainframes. The z/Architecture is an extension of ESA/390 and supports 64-bit addressing. Dynamic channel management was also introduced, as well as specialized cryptographic capability. The mainframe became “open” and capable of executing Linux; special processors (IFLs) were developed. z900 was launched in 2000 and was the first IBM server “designed from the ground up for e-business.”
  13. 13. 13 Business Unit or Product Name © 200 3 IBMIBM Confidential zSeries mainframes
  14. 14. 14 Business Unit or Product Name © 200 3 IBMIBM Confidential Z 990
  15. 15. 15 Business Unit or Product Name © 200 3 IBMIBM Confidential Z 990 zSeries is based on the 64-bit z/Architecture, which is designed to reduce memory and storage bottlenecks and which can automatically direct resources to priority workloads through Intelligent Resource Director (IRD). IRD is a key feature of the z/Architecture. The z990 provides a multibook system structure that supports the configuration of one to four books. Each book is comprised of a Multiple Chip Module (MCM) with 12 processors, of which eight can be configured as standard processors; memory cards that can support up to 64 GB of memory per book; and high performance Self- Timed Interconnects. The maximum number of processors available on a z990 is 32.
  16. 16. 16 Business Unit or Product Name © 200 3 IBMIBM Confidential z9-109
  17. 17. 17 Business Unit or Product Name © 200 3 IBMIBM Confidential z9-109 The latest generation of mainframes, the IBM System z9 109 (also known as the z9-109) is the next step in the evolution of the IBM mainframe family. It uses the z/Architecture and instruction set (with some extensions) of the z900 and z990 servers. (This architecture, formerly known as ESAME Architecture, is commonly 570 Introduction to the New Mainframe: z/OS Basics known as 64-bit architecture, although it provides much more than 64-bit capability.) The physical appearance of the z9-109 server and z990 servers is very similar. However, in addition to extending zSeries technology, the z9-109 server delivers enhancements in the areas of performance, scalability, availability, security and virtualization.
  18. 18. 18 Business Unit or Product Name © 200 3 IBMIBM Confidential z9-109 The z9-109 server continues such growth by providing a significantly higher- performance option for channel programming. Examples of further mainframe evolution in the z9-109 include: A modular multi-book design that supports one to four books and up to 54 processor units (customer-usable PUs) per server Full 64-bit real and virtual storage support, and any logical partition can be defined for 31-bit or 64-bit addressability Up to 512GB of system memory Up to 60 logical partitions In previous generations of mainframes, the number of I/O devices in a system was limited by the number of channels, the number of control units on each channel, and the number of devices on each channel. The addressing structure also provided a limitation. The fixed three-byte addresses (one byte each for channel, control unit, and device) of early systems evolved into four-byte device numbers allowing up to almost 64K device addresses. The z9-109 server continues this growth by providing Multiple Subchannel Sets (MSS), allowing up to almost 128K device addresses.
  19. 19. 19 Business Unit or Product Name © 200 3 IBMIBM Confidential Few Technologies on mainframe. AS AS/400 Assembler Brio ChangeMan CICS CLIST COBOL CoolGen CSP DB2 DFSORT Easytrieve Endevor FileAid IDMS IMS Java Java Script JCL ICM OpenSource Mainframe VB SOA ODBC ITS Web2.0 UsefulSoftware Focus PLI
  20. 20. 20 Business Unit or Product Name © 200 3 IBMIBM Confidential Here am trying to list the companies who deal with mainframes. I hope it will be useful. INFOSYS HCL ACCENTURE TCS IBM PATNI KANBY CTS COVANYS EDS WIPRO POLARIS L&T VETTRI SATHYAM/PC S MASCON SYNTEL XANSA HCL HPS4 Ford Hexaware verizon Mpowerss MASTEK ANZ Iflex CGI HSBC MPHASIS MBT CITI BANK COLES MYERS DETUSCHE BANK NET CRAFT INFINITY PHENIX EFUNDS MINDTREE MINDTEK FEDILITY TIMKEN DIGITAL KEANE POLARIS MAJORIS US Software Macro Soft Nest
  21. 21. 21 Business Unit or Product Name © 200 3 IBMIBM Confidential THANK YOU

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