Detailed information about the classification of computers and software
classification of Computers :
Computers are often small and powerful in size, and they are generally classified as follows: classification of computers and software
Analog Computer: A computer that operates with numbers represented by directly measurable quantities (as voltages or rotations) – compares computers and hybrid computers.
• Analog computer is employed to process analog data.
• Analog data is of continuous nature and which isn’t separate. Such sort of data includes temperature, pressure, speed, weight, voltage, depth, etc.
• Examples of analogue computer are Speedometer of a car, Thermometer etc.
• Analog computers are faster than other computers.
The digital computer is that the most ordinarily used computer A single-user computer supported a microprocessor. additionally, to the microprocessor, a personal computer features a keyboard, One Mouse, for entering data, a monitor for displaying information, and a storage device for saving data.
• A computer as its name implies works with digits to represent numerals, letters or other special symbols.
• A computer is employed to process digital data.
it’s a discrete data and having only two possible values (0,1)
• Digital computer provide accurate result but they’re slower than analogue computer .
• Analog computer has lack of memory whereas digital computers store information.
Hybrid Computer – A computer that mixes the characteristics of a computer and an analog computer by its capacity to simply accept input and supply output in either digital or analog form and to process information digitally.
• A hybrid computer and analogue computer are combines the simplest features of both sorts of computers.
• For example a petroleum pump contains a processor that converts fuel flow measurement into quantity and price
* A hybrid computer used on hospitals and also used in large IT industries.
Classification on size By Digital Computer:
Supercomputer : The supercomputer is the fastest computer. Supercomputers are very expensive and are employed for a specialized application that needs immense amounts of calculations.
Mainframe computer – A mainframe may be a very large computer capable of handling and processing very large amounts of knowledge quickly.
They are employed by large institutions, like government agencies and enormous corporations.
Mini Computer – A computer with processing and storage capabilities smaller than those of a mainframe but larger than those of a microcomputer.
Microcomputer – A microcomputer may be a complete computer on a smaller scale and is usually a synonym for the more common term, pc or PC, a computer designed for a private.
Personal computer – a private computer (PC) may be a small, relatively inexpensive computer designed for a private user. Every PC is predicated on microprocessor technology, which allows PC makers to line the whole central processing unit (CPU) on one chip.
LAPTOP: A laptop could also be A battery or AC-powered pc which can be easily carried and utilized during a spread of locations. Many laptops are designed to possess all of the functionality of a private computer, which means they’re going to generally run the same software and open the same kinds of files.
However, some laptops, like netbooks, sacrifice some functionality so on be even more portable.
Netbook: A netbook could also be a kind of laptop that’s designed to be even more portable.
Netbooks are often cheaper than laptops or desktops. they’re generally less powerful than other kinds of computers, but they provide enough power for email and internet access, which is where the name “netbook” comes from.
A mobile device is actually any handheld computer. it’s designed to be extremely portable, often fitting within the palm of your hand or in your pocket.
Some mobile devices are more powerful, which permit you to undertake several equivalents belonging to you can do with a desktop or laptop pc. These include tablet computers, e-readers, and smartphones.
Smartphone: A smartphone may be a powerful mobile that’s designed to run various applications additionally to phone services. These are basically small tablet computers and may be used for web browsing, watching videos, reading e-books, playing games, and far more.
Tablet computers: Tablet computers, like laptops, are designed to be portable. However, they supply a really different computing experience. The foremost obvious difference is that tablet computers don’t have a keyboard or touchpad. Instead, the complete screen is touch-sensitive, allowing you to type on a virtual keyboard and use your finger as a mouse pointer.
Tablet computers are mostly designed for media consumption and are optimized for tasks like web browsing, watching videos, reading e-books, and playing games. many of us need a “regular” computer, like a desktop or laptop, to use certain programs.
However, for the convenience of a tablet computer, it’s going to be ideal as a second computer.
classification of Software:
Software is a generic term for the organized collection of computer data and instructions,
often divided into two main categories system software that provides basic non-functional functions of the computer and application software that users use to perform specific tasks.
Type of Software:
A. System Software is responsible for controlling, integrating, and managing the individual hardware components of a computer system, so that users of other software and systems see it as a functional unit without having to deal with low-level details. Typically, system software consists of an operating system and some basic utilities such as disk formatters, file managers, display managers, text editors, user authentication (login) and management tools, and networking and device control software.
B. Application software is used to perform specific tasks without simply running a computer system.
Application software may contain a single program such as an image viewer; A small collection of programs (often called a software package) that work together to perform a task, such as a spreadsheet or text processing system; Related but a larger collection of individual programs and packages (often known as a software suite) consisting of a common user interface or shared data format such as Microsoft Office, which integrates closely integrated word processors, spreadsheets, databases, etc. .; Or a software system, such as a database management system, a collection of basic programs that can provide some services to various other standalone applications.
Comparison of application software and system software
System Software: Computer software is a general term used to refer to digitally stored data such as computer programs and other types of information such as computer reading and writing. The application comes under computer software although it now has a wide scope
Example: Microsoft Windows, Mac, Linux, Unix, DOS
Dependency: System software can run individually Application software
Interaction: Typically, users do not interact with the system software because it works in the background
Application Software: Application software is also known as an application or “app”, computer software that was designed to help the user perform certain tasks.
Example: *Google Chrome (Web Browser), Adobe Photoshop (Graphics Software), Video Editing, Microsoft Word (Word Processing), Microsoft Excel (Spreadsheet software), Microsoft PowerPoint (Presentation Software), etc.
Dependency: Users always interact with the application software When doing different activities.
Interaction: The application can’t run without system software.
Unit of measurement
Storage measurement: The unit required to use computer data storage has named a touch (binary digit). Computers use these little bits that consist of these and zeros to query others and computers.
For example, all your files are stored on the computer as binary files and are translated into software by words and pictures (which are also additions and zeros). This two number system is named as “binary number system” because it contains only two numbers. In contrast, the decimal number system has ten unique digits, nine not zeros.
Computer storage unit
1 Bit = Start [1 Byte (8 Bits)]………1 Byte to 1024 byte = 1 KiloByte (KB) ……… 1 KB to 1024 KB = 1 Megabyte (MB) ……… 1 MB to 1024 MB = 1 Gigabyte (GB) ……… 1 GB to 1024 GB = 1 Terabyte (TB) ………1 TB to 1024 TB = 1 Petabyte (PB)