Information Technology (M41) Flashcards
This processes data and transactions to provide users with the information they need to plan, control, and operate an organization
An Information System
T/F
Overall, manual accounting systems have been replaced by computerized accounting information systems
TRUE
These are designed to improve productivity by supporting daily work of employees (Word, Excel, Email, etc.)
Office Automation Systems
This involves the daily processing of transactions (payroll recording, cash receipts, cash disbursements)
Transaction Processing Systems
This is designed to help with the decision-making process by providing access to computer data
Management Reporting Systems
This is an example of a management reporting system that is designed to provide past, present, and future information for planning, organization, and controlling the operations of the organization
Management Information Systems
This is an example of a management reporting system that is computer-based and combines models and data to resolve non-structured problems with extensive user involvement
Decision Support Systems
This is an example of a management reporting system that is computer-based and applies reasoning methods to data in a specific relatively structured area to render advice or recommendations
Expert Systems
This is an example of a management reporting system is a computerized system that is specifically designed to support executive work
Executive Information Systems
What are the phases in a Systems Development Lifecycle (SDLC)
(7 Phases - PADDTIM)
1) Planning
2) Analysis
3) Design
4) Development
5) Testing
6) Implementation
7) Maintenance
This is a type of testing under the testing phase (in a systems development lifecycle) that involves testing the pieces of code
Unit Testing
This is a type of testing under the testing phase (in a systems development lifecycle) that involves testing of the integration of the units/pieces of code into a system
System Testing
This is a type of testing under the testing phase (in a systems development lifecycle) involves testing where the separate systems can work together
Integration Testing
This is a type of testing under the testing phase (in a systems development lifecycle) which determines whether the system meets the business requirements and enables users to perform their jobs efficiently and effectively
User Acceptance Testing
This is a type of implementation under the implementation phase (in a systems development lifecycle) that uses two systems (old and new) until it is determined that the new system is operating properly
Parallel Implementation
This is a type of implementation under the implementation phase (in a systems development lifecycle) that ceases the old system and begins using the new system immediately
Plunge Implementation
This is a type of implementation under the implementation phase (in a systems development lifecycle) that involves having a small group of individuals using the new system until it is seen to be working properly
Pilot Implementation
This is a type of implementation under the implementation phase (in a systems development lifecycle) that involves installing the system in a series of waves
Phased Implementation
The advantage of this implementation is that there is less risk of system disaster
Parallel Implementation
The disadvantage of this implementation is the additional work and cost during the implementation period
Parallel Implementation
It is VERY expensive to keep both systems running
The advantage of this implementation system is that it isn’t very costly
Plunge Implementation
The disadvantage of this implementation system is that it has high risk of system disaster
Plunge Implementation
The advantage of this implementation system is that it provides a partial operational test of the new system at a lower cost
Pilot Implementation
The costs are much lower than the Parallel Implementation where both systems are being used across the board.
In which phase of the SDLC would the activity of identifying the problem(s) that need to be solved most likely occur?
Planning Phase
List the 5 types of computers in order of largest/highest power to smallest/lowest power
1) Supercomputers
2) Mainframe Computers
3) Servers
4) Microcomputers (desktops/laptops)
5) Tablets/Smart Phones/PDAs
What are 4 categories of hardware?
1) Central Processing Unit (CPU)
2) Secondary Storage
3) Input Devices
4) Output Devices
What is the slowest & therefore cheapest form of secondary storage hardware, which is used primarily for archiving purposes
Magnetic Tape
What type of secondary storage hardware is similar to a USB drive?
Solid State Drives (SSDs)
What type of secondary storage hardware is also known as “Storage as a Service” (SaaS), hosted offsite, and is accessed via the internet?
Cloud-Based Storage
What is the most common secondary storage hardware medium used today?
Magnetic Disks (hard drives)
What is the difference between Digital & Analog?
Digital is read in binary (0s & 1s)
Analog is read using electrical, mechanical, hydraulic, or pneumatic devices to transmit the fluctuations in a signal
What type of secondary storage device requires no moving parts for read/write operations?
Solid State Drives
Another term for cloud-based storage is
Storage-as-a-Service (SaaS)
This is a program that controls the display for a user (usually on a computer monitor that allows the user to interact with the system
a Input Interface
This uses icons, pictures, and menus instead of text for inputs (classic example: Windows)
Graphical User Interface (GUI)
These are documents that are sent to the customer and returned as inputs
Turnaround Documents
What is a classic example of a turnaround document?
a Remittance Advice
A good example of a point-of-sale recorder is…
A cash register
T/F
Point of Sale Recorders are generally wireless
FALSE
They usually have a wire connection
What is a good example of a Radio Frequency Identification (RFID)
A toll road that reads the toll card in a person’s card and charges it as they drive by
T/F
RFID is a wireless input device that is used for inventory control and similar to bar-codes technology but does not require line-of sight access
TRUE
What are the 4 common output devices?
1) Monitors
2) Printers
3) Plotters
4) Computer Output to Microfilm or Microfiche (COM)
What is the most common output device?
Monitors
This is a systems software that manages the input, output, processing, and storage devices and operations of a computer
an Operating System
This is a systems software that handles common file, data manipulation, and other “housekeeping” tasks
Utility Programs
This is a systems software that controls and supports transmission between computers, computers and monitors, and accesses various databases
Communications Software
What is the difference between a low-end and high-end application software?
Low-End is all in one package, designed for small organizations.
High-End is ordinarily in Modules
This is an applications software that is designed as a relatively complete information system
Enterprise Resource Planning (ERP)
What is the difference between multiprocessing and multitasking?
Multiprocessing is the simultaneous execution of two or more tasks, usually by two or more CPUs that are part o the same system
Multitasking is the simultaneous processing of several jobs on one computer
List the programming languages in order of 1st generation to 5th generation
1) Machine Language (Binary)
2) Assembly Language
3) “High-Level” Programming language
4) “Application-Specific Languages”
5) Visual or Graphical Interfaces
What are examples of a high-level, 3rd generation programming language?
COBOL, C++, Java
This is a review of a program by a programmer for errors before the program is run and debugged on the computer
Desk Checking
This finds and eliminates errors in a computer program.
Debug
This is a set of program instructions performed repetitively a predetermined number of times, or until all of a particular type of data has been processed
Loop
This is a listing of the contents of storage
Memory Dump
This is a section of coding inserted into a program to correct a mistake or to alter a routine
Patch
This is a complete cycle of a program including put, processing, and output
Run
What is a big pro for batch processing as opposed to online real-time processing
a Batch leaves a relatively easy-to-follow audit trail
T/F
Misstatements in a batch computer system caused by incorrect programs or data may not be detected immediately because the processing of transactions in a batch system is not uniform
FALSE
The processing of transactions in a batch system usually IS uniform
T/F
Misstatements in a batch computer system caused by incorrect programs or data may not be detected immediately because there are time delays in processing transactions in a batch system
TRUE
T/F
The posting of a transaction as it occurs, to several files, without intermediate printouts, is a characteristic of a batch processed computer system
FALSE
T/F
The production of numerous printouts is a characteristic of a batch processed computer system
TRUE
T/F
The keypunching of transactions, following by machine processing is a characteristic of a batch processed computer system
TRUE
T/F
The collection of like transactions which are sorted and processed sequentially against a master file is a characteristic of a batch processed computer system
TRUE
This is a subject-oriented, integrated collection of data used to support management decision making processes
Data warehouse
What is the difference between a data warehouse and a data mart?
a Data Mart is a data warehouse that is limited in scope