Information Technology Flashcards
Systems Analyst
Systems Analyst
a systems analyst designs the information system using systems flowcharts and other tools and prepares specifications for applications programmers, as well as acting as an intermediary between the users and the programmer
Applications Programmer
Applications Programmer
an applications programmer writes, tests, and debugs programs that will be used in the system. The programmer also develops instructions for operators to follow when running the program.
Database Administrator
Database Administrator
a database administrator is an individual or department responsible for the security and information classification of the shared data stored on a database system. This responsibility includes the design, definition and maintenance of the database.
Data Control Clerk
Data Control Clerk
a data control clerk schedules jobs for the computer and manages the distribution of reports and other output. Data control clerks will be involved in coding activities, calculating and checking batch totals, and related clerical tasks.(data control clerks should not know about programming)
Computer Operator
Computer Operator
a computer operator is a person who operates a computer and eight data center and forms such activities as commanding the operating system, monitoring disks and placing paper in the printer. Operators also write the job control language (JCL), which schedules the daily work for the computer.
Librarians
Librarians
librarians are individuals responsible for the safeguarding and maintenance of all program and data files.
System Programmer Or Technical Support
System Programmer or Technical Support
a systems programmer or technical support is responsible for updating and maintaining the operating systems
Security Administration
Security Administration
security administration is responsible for security of the system including control access and maintenance of user passwords.
General Controls
General Controls
these related to overall integrity of the system. Controls include policies, procedures, and practices (tasks and activities) established by management to provide reasonable assurance that specific objectives will be achieved
Application Control
Application Control
days are specific to individual programs and uses of the system
Authorization (Noah and the ARCC)
Authorization (Noah and the ARCC)
Authorization-the development of new programs and changes to existing programs should be performed by systems analysts and programmers. These personnel should not be involved in basic vision of computer operations or the control and review of output. Systems analysts work with operating systems and compilers.
Recording (Noah and the ARCC)
Recording (Noah and the ARCC)
Recording-Data input clerks and computer operators have the role of entering information into the computer and running the programs. These personnel should not have access to program code that would enable them to modify programs nor should they control the output.
Custody (Noah and the ARCC)
Custody (Noah and the ARCC)
Custody-Control clerks and librarians obtain and review output from computers to review exception reports indicating inappropriate functioning of the computer, send printouts and other outputs to the appropriate destinations and maintain disks, tapes, or other storage units of data. These personnel should not have the ability to create or alter programs or to operate computer that generates the information.
Reconciliation (Noah and the ARCC)
Reconciliation (Noah and the ARCC)
company reconciliations
Parity Check
Parity Check
in the storage of bytes, one bit will be a “dummy” it that doesn’t represent any actual information, but this turned on automatically when necessary so that the total number of bits in the on position is an odd number (in an odd parity computer). When the computer is reading bytes of data from a chip or a disk drive, a bite with an even number of bits turned: will be known to be functioning properly.
