Software - A set of instructions, stored digitally within the
computer's memory, which tells the computer system what to do.
components of a computer system have no physical presence, they are stored in
digital form within computer memory. There are different categories of
software, including system software, utilities and applications
software. Software can also be described as being either generic or bespoke.
software is the software used to manage and control
the hardware components and which allow interaction between the hardware and
the other types of software. The most obvious type of system software is the
computer's operating system but device drivers are
also included within this category.
software is software such as anti-virus software,
firewalls, disk defragmenters and so on which helps to maintain and protect the
computer system but does not directly interface with the hardware.
software (also known as 'apps') are designed to allow
the user of the system complete a specific task or set of tasks. They include
programs such as web browsers, office software, games and so on. They are
usually the reason you bought the computer system in the first place and aren't
concerned with the management or maintenance of the system itself.
1.2 More Key Terms to Understanding Software
·Hardware: refers to
objects that you can actually touch, like disks, disk drives, display screens,
keyboards, printers, boards and chips.
instructions or data. Anything that can be stored electronically is software.
system: the most important program that runs on a computer. Every
general-purpose computer must have an operating system to run other programs.
·Malware: short for
malicious software, software designed specifically to damage or disrupt a
system, such as a virus or a Trojan horse.
How do you get software?
are also millions of free software programs available that are separated into
trial software is software that gives you a few days to try the
software before you have to buy the program. After the trial time expires,
you'll be asked to enter a code or to register the product before you can
continue to use it.
completely free software that never requires payment, as long as it is not
software is similar to freeware. Not only is the program given
away for free, but the source code used
to make the program is as well, allowing anyone to modify the program or view
how it was created.
How do you use computer software?
the software is installed on the computer hard drive,
the program can be used anytime by finding the program on the computer. On
a Windows computer,
a program icon is added to the Start Menu or Start Screen,
depending on your version of Windows.
How to maintain software
the software is installed on your computer, it may need to be updated to fix
any found errors. Updating a program can be done using software patches. Once
updates are installed any problems that may have been experienced in the
program will no longer occur.
How is software created and how
does it work?
programmer (or several computer programmers) write the
instructions using a programming
language that tell the software how to function and what to do.
Once the program has been completed, it is compiled into
a language that the computer can understand.
When I save a document using my program, is that file also considered
you create or edit a file using your software — a Microsoft Word document, for
instance, or a Photoshop image — that file is considered a "resource"
or "asset" used by the software. However, the file itself is not
considered "software", even though it is an essential part of what
your software is doing.
What was the first piece of computer software?
first software program that was held in electronic memory was written by Tom Kilburn.
The program calculated the highest factor of the integer 2^18 = 262,144 and was
successfully executed on June 21st of 1948 at the University of Manchester. The
computer that held that program was called the Small Scale Experimental
Machine, otherwise known as the "Baby" computer. This
"Manchester Baby" is widely celebrated as the birth of software.
1.3 Applicatiaons Sofwarte
A word processor is an electronic device or
application, that performs the task of composing, editing,
formatting, and printing of documents.
The word processor
was a stand-alone office machine in the 1960s, combining the keyboard
text-entry and printing functions of an electric typewriter,
with a recording unit, either tape or floppy disk (as used by the Wang machine) with a simple dedicated
computer processor for the editing of text. Although features and
designs varied among manufacturers and models, and new features were added as
technology advanced, word processors typically featured a monochrome display and
the ability to save documents on memory cards or diskettes. Later models introduced
innovations such as spell-checking programs,
and improved formatting options.
A spreadsheet is an interactive computer application for
organization, analysis and storage of data in tabular form. Spreadsheets
are developed as computerized simulations of paper accounting worksheets. The program
operates on data entered in cells of a table. Each cell may contain either
numeric or text data, or the results of formulas that
automatically calculate and display a value based on the contents of other
cells. A spreadsheet may also refer to one such electronic document.
LANPAR, available in 1969, was the first
electronic spreadsheet on mainframe and time sharing computers. LANPAR was an
acronym: LANguage for Programming Arrays at Random.VisiCalc was the first
electronic spreadsheet on a microcomputer, and it helped turn the Apple II computer into a
popular and widely used system. Lotus 1-2-3 was the leading spreadsheet when DOS was the dominant operating system.Excel now has the
largest market share on the Windows and Macintosh platforms. A spreadsheet program is a
standard feature of an office productivity
suite; since the advent of web apps, office suites now
also exist in web app form.
publishing software is a tool for graphic designers and non-designers to create
visual communications such as brochures, business cards, greeting cards, web
pages, posters and more for professional or desktop printing as well as for
online or on-screen electronic publishing.
Programs such as Adobe InDesign, Microsoft
Publisher, QuarkXPress, Serif PagePlus and Scribus are examples of desktop
Some of these are used by professional graphic designers and commercial
printing technicians. Others are used by office workers, teachers,
students, small business owners and non-designers.
In computer graphics, graphics
software refers to a program or collection of programs that
enable a person to manipulate images or models visually on a computer.
can be classified into distinct categories: raster graphics and vector graphics, with further 2D and 3d variants.
Many graphics programs focus exclusively on either vector or raster graphics,
but there are a few that combine them in interesting ways. It is simple to
convert from vector graphics to raster graphics, but going the other way is
harder. Some software attempts to do this.
In addition to
static graphics, there are animation and video editing software.
Different types of software are often designed to edit different types of
graphics such as video, photos, and drawings. The exact sources of graphics may
vary for different tasks, but most can read and write files.