DIGITAL COMPUTER
Definition:
In computer science, a digital electronic computer is a computer machine which is both an electronic computer and a digital computer. Examples of a digital electronic computers include the IBM PC, the Apple Macintosh as well as modern smartphones.
Types of digital computer according size and form:
Size:
Micro computer:
A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).[2] It includes a microprocessor, memory, and minimal input/output (I/O) circuitry mounted on a single printed circuit board.
Mini computer:
A minicomputer, or colloquially mini, is a class of smaller computers that was developed in the mid-1960s[1][2] and sold for much less than mainframe[3] and mid-size computers from IBM and its direct competitors, with an input-output device such as a teleprinter and at least four thousand words of memory, that is capable of running programs in a higher level language, such as Fortran or BASIC.
Mainframe computer:
Mainframe computers (colloquially referred to as "big iron" are computers used primarily by large organizations for critical applications, bulk data processing, such as census, industry and consumer statistics, enterprise resource planning, and transaction processing.
The term originally referred to the large cabinets called "main frames" that housed the central processing unit and main memory of early computers.
Supercomputer:
A supercomputer is a computer with a high level of computing performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). As of 2015, there are supercomputers which can perform up to quadrillions of FLOPS, measured in P(eta)FLOPS.The majority of supercomputers today run Linux-based operating systems.
Form:
Personal computer:
A personal computer (PC) is a multi-purpose electronic computer whose size, capabilities, and price make it feasible for individual use. PCs are intended to be operated directly by an end user, rather than by a computer expert or technician.
Handheld computer:
A handheld PC, or H/PC for short, is a computer built around a form factor which is smaller than any standard laptop computer. It is sometimes referred to as a palmtop computer.
In computer science, a digital electronic computer is a computer machine which is both an electronic computer and a digital computer. Examples of a digital electronic computers include the IBM PC, the Apple Macintosh as well as modern smartphones.
Types of digital computer according size and form:
Size:
Micro computer:
A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).[2] It includes a microprocessor, memory, and minimal input/output (I/O) circuitry mounted on a single printed circuit board.
Mini computer:
A minicomputer, or colloquially mini, is a class of smaller computers that was developed in the mid-1960s[1][2] and sold for much less than mainframe[3] and mid-size computers from IBM and its direct competitors, with an input-output device such as a teleprinter and at least four thousand words of memory, that is capable of running programs in a higher level language, such as Fortran or BASIC.
Mainframe computer:
Mainframe computers (colloquially referred to as "big iron" are computers used primarily by large organizations for critical applications, bulk data processing, such as census, industry and consumer statistics, enterprise resource planning, and transaction processing.
The term originally referred to the large cabinets called "main frames" that housed the central processing unit and main memory of early computers.
Supercomputer:
A supercomputer is a computer with a high level of computing performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). As of 2015, there are supercomputers which can perform up to quadrillions of FLOPS, measured in P(eta)FLOPS.The majority of supercomputers today run Linux-based operating systems.
Form:
Personal computer:
A personal computer (PC) is a multi-purpose electronic computer whose size, capabilities, and price make it feasible for individual use. PCs are intended to be operated directly by an end user, rather than by a computer expert or technician.
Handheld computer:
A handheld PC, or H/PC for short, is a computer built around a form factor which is smaller than any standard laptop computer. It is sometimes referred to as a palmtop computer.
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