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Computer
Definition
Components
Ing. Alba Lissette Peguero
Denifition
 A computer is a programmable machine designed to automatically
carry out a sequence of arithmetic or logical operations. The
particular sequence of operations can be changed readily,
allowing the computer to solve more than one kind of problem.
 The interface between the computer and the human operator is
known as the user interface. A user interface is the system by which
people (users) interact with a machine.
 The user interface includes hardware (physical) and software
(logical) components. A user interface is the system by which
people (users) interact with a machine. The user interface includes
hardware (physical) and software (logical) components.
Ing. Alba Lissette Peguero
Software
 Computer software or just software, is a collection of
computer programs and related data that provides the
instructions for telling a computer what to do and how
to do it.
 Software refers to one or more computer programs and
data held in the storage of the computer for some
purposes.
 In other words, software is a set of programs,
procedures, algorithms and documentation concerned
with the operation of a data processing system.
Ing. Alba Lissette Peguero
Software
 Program software performs the function of the program
it implements, either by directly providing instructions to
the computer hardware or by serving as input to
another piece of software.
 Software is also sometimes used in a more narrow sense,
meaning application software only.
Ing. Alba Lissette Peguero
Hardware
 Computer hardware refers to the physical parts of a
computer and related devices. Internal hardware
devices include motherboards, hard drives, and RAM.
External hardware devices include monitors, keyboards,
mice, printers, and scanners.
 The internal hardware parts of a computer are often
referred to as components, while external hardware
devices are usually called peripherals. Together, they all
fall under the category of computer hardware.
Ing. Alba Lissette Peguero
Components
A general purpose computer has four main
components:
the arithmetic logic unit (ALU),
the control unit,
the memory,
The input and output devices (I/O). These parts
are interconnected by busses, often made of
groups of wires.
Ing. Alba Lissette Peguero

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Computer Components Defined

  • 2. Denifition  A computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem.  The interface between the computer and the human operator is known as the user interface. A user interface is the system by which people (users) interact with a machine.  The user interface includes hardware (physical) and software (logical) components. A user interface is the system by which people (users) interact with a machine. The user interface includes hardware (physical) and software (logical) components. Ing. Alba Lissette Peguero
  • 3. Software  Computer software or just software, is a collection of computer programs and related data that provides the instructions for telling a computer what to do and how to do it.  Software refers to one or more computer programs and data held in the storage of the computer for some purposes.  In other words, software is a set of programs, procedures, algorithms and documentation concerned with the operation of a data processing system. Ing. Alba Lissette Peguero
  • 4. Software  Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software.  Software is also sometimes used in a more narrow sense, meaning application software only. Ing. Alba Lissette Peguero
  • 5. Hardware  Computer hardware refers to the physical parts of a computer and related devices. Internal hardware devices include motherboards, hard drives, and RAM. External hardware devices include monitors, keyboards, mice, printers, and scanners.  The internal hardware parts of a computer are often referred to as components, while external hardware devices are usually called peripherals. Together, they all fall under the category of computer hardware. Ing. Alba Lissette Peguero
  • 6. Components A general purpose computer has four main components: the arithmetic logic unit (ALU), the control unit, the memory, The input and output devices (I/O). These parts are interconnected by busses, often made of groups of wires. Ing. Alba Lissette Peguero