FIS - Module 3 Flashcards
It consists of any machinery
(most of which uses digital circuits) that assists in the input, processing, storage, and output activities of an information system.
Hardware
These components include the input devices, output devices, primary and secondary storage devices, and the central processing unit (CPU)
. The control unit, the arithmetic/logic unit (ALU), and the register storage areas constitute the CPU.
Hardware Components
Part of the computer that consists of three associated elements: the arithmetic/logic unit, the control unit, and the register areas
.
Central Processing Unit (CPU)
Part of the CPU that performs mathematical calculations
and makes logical comparisons.
Arithmetic/logic unit (ALU)
Part of the CPU that sequentially accesses program instructions, decodes them, and coordinates the flow of data
in and out of the ALU, the registers, primary storage, and even secondary storage and various output devices.
Control unit
The set of programs that coordinates the activities and functions of the hardware
and other programs throughout the computer system.
Systems Software
The combination of a hardware configuration
and systems software
is known as a .
computer system platform
It has the greatest
potential to affect processes that add value to a business because it is designed for specific
organizational activities and functions.
Application Software
is an application that enables a workgroup
to schedule meeting
s and coordinate activities
.
Lotus Notes
The sphere of influence that serves the needs of an individual user
.
Personal Sphere of Influence
The software that enables users to improve their personal effectiveness
, increasing the amount of work they can perform and enhancing its quality.
Personal Productivity Software
Personal computer and workstation operating systems
Systems Software
Word processing, spreadsheet, database, graphics
Application Software
Two or more
people who work together to achieve a common goal
.
Workgroup
The sphere of influence that serves the needs of a workgroup
.
Workgroup Sphere of Influence
Network operating systems
Systems Software
Electronic mail, group scheduling, shared work, collaboration.
Application Software
The sphere of influence that serves the needs of the firm
in its interaction with its environment.
Enterprise Sphere of Influence
Midrange computer and mainframe operating systems.
Systems Software
General ledger, order entry, payroll, human resources.
Application Software
- A set of programs that
controls the computer hardware
and acts as an interface with applications. - It can control one or more computers, or they can allow
multiple users
to interact with one computer.
Operating System (OS)
This system is commonly used in a personal
computer or a handheld
computer that allows one user at a time
.
Single computer with a single user
This system is typical of larger, mainframe
computers that can accommodate hundreds or thousands of people
, all using the computer at the same time.
Single computer with multiple users
This system is typical of a network
of computers, such as a home network with several computers attached or a large computer network with hundreds of computers attached around the world
.
Multiple computers
This system is typical of a number of computers with specialized functions
, such as those that control sophisticated military aircraft, the space shuttle, and some home appliances.
Special-purpose computers
- The
heart
of the operating system, which controls themost critical
processes. - It ties all of the OS components together and regulates other programs.
KERNEL
PERSONAL OS
- Microsoft PC Operating Systems
- Apple Computer Operating Systems
- Linux
WORKGROUP OS
- Windows Server
- Red Hat Linux
- UNIX
- Mac OS X Server
- NetWare
ENTERPRISE OS
z/OS
HP-UX and Linux
Help to perform maintenance
or correct problems with a computer system. It also help computer systems run better and longer
without problems.
* merge and sort sets of data,
* keep track of computer jobs being run, and
* compress files of data before they are stored or transmitted over a network .
Utility Programs
TYPES OF UTILITY PROGRAMS
- Hardware Utilities
- File-Compression Utilities
- Spam and Pop-Up Blocker Utilities
- Security Utilities
- Network and Internet Utilities
- Server and Mainframe Utilities
A software that allows different systems to communicate and exchange data
.
It can also be used as an interface between the Internet and older legacy systems (a previous, major version that continues to be used).
Middleware
-
not
in the public domain. - cannot be used by the public.
Proprietary Software
can be purchased or acquired in a store
.
Off-the-Shelf Software
A defect
in a computer program that keeps it from performing as it is designed to perform.
Some software bugs are obvious and cause the program to terminate
unexpectedly.
Other bugs are subtler and allow errors to creep into your work.
Software Bugs
Most software products are protected by law
using copyright or licensing provisions.
* In some cases, you are given unlimited
use of software on one or two
computers.
* In other cases, you pay for your usag
e—if you use the software more, you pay more.
Copyrights and Licenses
Permits you to install the software on one computer, or sometimes two computers, used by one person
.
Single-user license
-
Specifies the number of users
allowed to use the software, and can be installed on each user’s computer. - For example, a 20-user license can be installed on 20 computers for 20 users.
Multiuser license
Designed for network-distributed software, this license allows any number of users
to use the software, but only a specific number of users to use it at the same time
.
Concurrent-user license
Permits the software to be used anywhere on a particular site
, such as a college campus, by everyone on the site.
Site license
- Is
freely available to anyone
in a form that can be easily modified. - Users can
download
the source code andbuild
the software themselves, or the software developers can make executable versions available along with the source.
Open-Source Software
Software that is very inexpensive or free
, but whose source code cannot be modified
.
Shareware and Freeware
A software that is not protected by copyright laws
and can be freely copied and used.
Public Domain Software