A formal reference point that measures system characteristics at a specific time. System annalists use baselines as yardsticks to documents futures and performance during the systems development proce...
The process of saving a series of files or data copies to be remained for a specified period of time. Data can be backed up continuously, or at prescribed interva...
A system that allows a customer to request a fax using e mail, the company web site, or a telephone. the response is transmitted in a matter of second back to the user's fax machi...
these are special fields within data records to provide additional control or security information. Typical audit fields include the data the record was created and modified, the name of the user who performed the action, and the number of times the record has been access...
A single characteristic or fact about an entity. An attribute , or field , is smallest piece of data that has meaning within an information system. In object oriented analysis, an attribute is a part of a class diagram. that describe the characteristics of object in a class. also known as a data el...
An application generator is also called a code generator, allows you to develop computer programs rapidly by translating all logical model directly into co...
the process of constructing the program and code module that are the building blocks of an information system. Application development is handled by an application development group within a traditional IT development that composed of systems analysts and programs who handle information system design...
IntroductionSingapore international airline has started its journey as Malayan airline in 1947. It was joint venture airline between the two governments of Malaysia and Singapore. It served primarily in the south East Asian region. Singapore Airline was born in 1972 after the independent. Singapore...
In traditional operating systems, each process has an address space and a single thread of control. In fact, that is almost the definition of a process. Nevertheless, there are frequently situations in which it is desirable to have multiple threads of control in the same address space running in quasi-parallel,...
EEPROM which stands for Electrically Erasable Programmable Read-Only Memory is a type of non-volatile memory used in computers and other electronic devices to store small amounts of data that must...
An EPROM, or Erasable Programmable Read-Only Memory, is a type of memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile. It is an array of...
A programmable read-only memory is a form of digital memory where the setting of each bit is locked by a fuse or anti fuse. Such PROMs are used to store programs permanent...
Read-only memory is a class of storage media used in computers and other electronic devices. Because data stored in ROM cannot be modified, it is mainly used to distribute firmwa...
Every computer has some main memory that it uses to hold executing programs. In a very simple operating system, only one program at a time is in memory. To run a second program, the first one has to be removed and the second one placed in memory.More sophisticated operating systems allow multiple programs...
Java Creation and DevelopementJava was conceived by James Gosling, Patrick Naughton, Chris Worth, Ed Frank and Mike Sheridan at Sun Microsystems, in 1991. It took 18 months to develop the first working version. This language was originally called “Oak” but it was renamed as Java in 1995. Between the...
A modern computer system consists of one or more processors, some main memory, disks, printers, a keyboard, a display, network interfaces, and other input/output devices. All in all, a complex system. Writing programs that keep track of all these components and use them correctly, let alone optimally,...