Computer system
The computer system (Britain: computer system) is a system (mechanism) to which the computer was mainly assembled to process information (input, calculation, processing, and output, etc.).
It is used for the business use in the enterprise for the narrow sense, and the processing system (one called the computer system and a computer system in the past, etc.) for a large amount of data is said though personal computer (PC) that is a personal computer is included in the wide sense.
The computer is combined various hardware and software, etc. and works. The one (The main body etc. of the computer are included) necessary for the computer's working is caught as "System that consists of two or more components", and these are treated as one body, and therefore, it designs, it operates, and it tries to improve it.
Hardware and software are sure to be included in the computer system as a component, and the telecommunications equipment etc. of the router etc. come to be assumed to be a component of the computer system by informationization of the society in the contemporary society usually.
The computer system is done positive use to speed up the business, and is greatly related also to the performance of the information system. The computer system is a base of the information system that does various business, and an extremely big position to make the information system of the retrieval lending system etc. of the collection of books at the seat reservation system for transportation such as savings (calculation system) system, trains, and airplanes of the bank etc. that the general citizens also use and the library work smoothly is occupied, too.
Because the computer system is deeply related to a social infrastructure, an economic activity, and daily life in modern days, and the stop and the delay, etc. of the business are caused when the trouble of the computer system of the financial institution such as banks and brokerage firms occurs especially, the influence power to daily life and an economic activity is also strong of the 21st century.
Pattern of computer system
There is the following as a combination of processing.
* Online real time
* Online batch
* Off-line batch (pure batch)
An actual system combines these two or more processing according to the usage. For instance, deposits and withdrawals from the ATM etc. are real-time online, and an online batch, a monthly slit, and Mastamente, etc. combine a pure batch with the account transfer etc. in the bank.
Online real time edit (at once) system
Reservation and stock and sales management etc. of savings and transportation etc. of bank etc. where character is requested from data processing at once. Processing is basically done in each input transaction and the result is returned. Because the correspondence of each transaction is secured, it is general to combine the transaction processing system with the database management system.
* Mars "Midori's window" such as JR train stations and major travel
agencies
* Online system calculation system system and nationwide ATM net etc. of
financial institution
* Sales management in chain store in convenience store etc.
Edit batch (batch processing) type system
A lot of batch processing every day was done on business (stock, sales management, and financial processing, etc.) of the character's not being necessarily demanded from the processing of data at once in the age (Until the 1980's) before when the cost of the telecommunication line and hardware was large amount of money. However, the disposal of business affairs by the batch processing has decreased because it came for various material concerning financial affairs and management to be often demanded from the purpose of the efficiency improvement of a business that decreases of the improvement of the computing capacity and the telecommunication line cost and is further in shape near at once. It is used for the business that is the next and makes reduction and the statistical material of the annual during the week in the following, monthly (payroll accounting etc.), and the first half of the year and the latter half of the years on the day a lot as of 2005.
Edit off-line batch(pure batch)
It is a pure batch, and the data input is the one online like the tape media etc. done in the form of the one or the system occupation that not is (Overtime of real-time online). Batch processing etc. of a large amount of data from customer. Because the cost of the batch of hardware, development, and operation is less no matter how the computer reduces the price, it is used in the system that can secure the batch occupation time.
Edit online batch(on batch)
It is possible to execute it by maintaining the correspondence during the service time of real-time online because it is processed as it is real-time online (As a transaction) in the system though it is on business a batch (batch processing). Processing of transfer of account of bank etc.There is a thing that is called the center cut, too. It operates as a transaction in parallel with online though something that CICS and IMS that is the transaction processing system in mainframe/general computer are used is in a typical composition, and the batch moves in the batch region.