Question

briefly explain the types of digital computers.

Answer 1

1. Presented : ANSIF EK2.  Digital computers are programmable machines that use electronic technology to generate, store and process data. Two terms, positive "1" and nonpositive "0," compose the data into a string.3. Digital Computer Micro computer Supercomputer Mainframes Minicomputer4.  A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU). It includes a microprocessor, memory, and input/output devices.  Also known as “personal computer”  Includes workstations ,desktops ,servers, laptop and notebook  Examples are the IBM pc, Apple Macintoshes, Dell.5.  Minicomputers emerged in the mid-1960s and were first developed by IBM Corporation.  This computer fills the space between the mainframe and microcomputer  This may also be called a mid-range computer.  Minicomputers may contain one or more processors, support multiprocessing and tasking, and are generally resilient to high workloads.  Example are DEC’S, VAX, RANGE.6.  Mainframes are a type of computer that generally are known for their large size, amount of storage, processing power and high level of reliability. They are primarily used by large organizations for mission- critical applications requiring high volumes of data processing.  Ability to run (or host) multiple operating systems.  Mainframes first appeared in the early 1940s.  The Market is dominated by IBM7.  supercomputers consists of tens of thousands of processors that are able to perform billions and trillions of calculations or computations per second.  Supercomputers are primarily are designed to be used in enterprises and organizations that require massive computing power  As of 2013, IBM Sequoia is the fastest supercomputer to date. It has more than 98,000 processors that allow it to process at a speed of 16,000 trillion calculations per second.8.  they contain most of the key components of a typical computer, including a processor(s), peripheral devices, connectors, an operating system and applications.  A large and very powerful mainframe computer is called a supercomputer. The Cray X-MP is an example of supercomputer. Such supercomputers are applied to the solution of very complex and sophisticated scientific problem and for national security purposes of some advance nations.

Answer 2

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Super Computers

Super computers are able to process several billion instructions a second. As a rule, they are used for applications requiring extensive numerical computations. Some of their uses are weather forecasting, stock analysis, scientific simulations, fluid dynamic calculations, animated graphics, electronic design, geological data analysis and nuclear energy research. This is the most expensive type of digital computer.

Mainframe Computers

Most mainframe computers also process data at extremely high speeds, usually in the hundreds of millions of instructions per second. They are generally used in airlines, banking and railways, for instance, and are not quite as expensive as super computers.

Mini Computers

Mini computers are generally lower in terms of storage capacity and speed when compared to mainframe computers. Mini computers do not have all the features available in mainframes. Their overall performance is therefore also less than the performance of mainframes, making them cheaper than mainframes.

Micro Computers

Microprocessors, or single chip CPUs, gave rise to much cheaper micro computers. These are classified into desktop, laptop and handheld computers, or PDAs.

Handheld computers or PDAs, Personal Digital Assistants, are usually pen-based and battery-powered. They are small enough to be carried anywhere. Using a pen like stylus, they accept handwritten input directly onto touch screens. Although not as powerful as laptops or desktops, they are useful for storing addresses, scheduling appointments and games.❤️❤️❤️