12. The reasons why
people use computer :
Speed : People use
computer to makes their
job can be done easier
and faster . For example ,
transferring data ,
banking , communication
, and more .
13. Reliability : People are
using computer to do
their jobs because human
can get affected by many
factors and cause them
can't achieved their job .
14. Consistency : Computer
do not require to rest ,
they can do their own jobs
for all day long , unless
the computer got affected
by virus or malfunction .
15. •Storage : Computer
contains a huge storage
that can store up a huge
amount of information ,
unlike human they can
easily forget their things.
16. •Communication :
Computer also become a
good communication
tools for human because
it have some software
that can make us
communicate all around
the world .
20. The Computer
A computer is a machine or device
that performs processes,
calculations and operations based
on instructions provided by a
software or hardware program.
It is designed to execute
applications and provides a variety
of solutions by combining
integrated hardware and software
components.
21. PURPOSE OF COMPUTER
•General purpose
computers - are designed
to perform a range of
tasks. They can store
numerous programs, but
lack in speed and efficiency.
Specific purpose computers -
are designed to handle a
specific problem or to perform
a specific task. A set of
instructions is built into the
machine.
23. Analog Computer
• A digital computer performs calculations based solely upon
numbers or symbols. An analog computer , on the other
hand, translates continuously changing quantities (such as
temperature, pressure, weight, or speed) into corresponding
voltages or gear movements.
• This means that analogue computers are frequently used in
science and scientific studies.
24. Digital Computer
• Digital computer, any of a class of devices
capable of solving problems by processing
information in discrete form. It operates on
data, including magnitudes, letters, and symbols,
that are expressed in binary code—i.e., using
only the two digits 0 and 1.
25. Hybrid Computer
• Hybrid computers can provide accuracy like that
of a digital computer but can also allow for
measurement and projection like
an analogue computer can. Hybrid computers
are also very fast, as they are able
to compute and complete even the
most complicated of equations on a time-scale
measured in nano-seconds.
27. Micro Computer or Personal Computer
• Micro computers are the most important
category of computer system for the end –
users.
28.
29.
30.
31.
32.
33.
34. • A microcomputer is a computer with a central
processing unit (CPU) as a microprocessor. Designed
for individual use, a microcomputer is smaller than a
mainframe or a minicomputer.
• The term microcomputer is not as commonly used
as it was during the 1970s-1980s. We now refer to
microcomputers as, simply, computers, or personal
computers (PC).
35. Mini Computer
• A minicomputer is a type of computer that possesses
most of the features and capabilities of a large
computer but is smaller in physical size.
• Minicomputers emerged in the mid-1960s and were
first developed by IBM Corporation. They were
primarily designed for business applications and
services that require the performance and efficiency
of mainframe computers.
36. • Minicomputers are generally used as mid-range
servers, where they can operate mid-sized software
applications and support numerous users
simultaneously.
• Minicomputers may contain one or more
processors, support multiprocessing and tasking,
and are generally resilient to high workloads.
Although they are smaller than mainframe or
supercomputers, minicomputers are more powerful
than personal computers and workstations.
37.
38.
39. Mainframe Computer
• A very large and expensive computer capable of
supporting hundreds, or even thousands,
of users simultaneously.
• A mainframe is an ultra high-performance
computer made for high-volume, processor-
intensive computing.
40. • Mainframe can usually execute many programs
simultaneously at a high speed, whereas
supercomputers are designed for a single
process. Currently, the largest manufacturers of
mainframes are IBM and Unisys.
41.
42.
43. Super Computer
• A supercomputer is a computer that performs at
or near the currently highest operational rate for
computers. Traditionally, supercomputers have
been used for scientific and engineering
applications that must handle very large
databases or do a great amount of computation
(or both)
44. • A supercomputer is a computer with a high level
of performance compared to a general-purpose
computer. The performance of a supercomputer
is commonly measured in floating-
point operations per second (FLOPS) instead
of million instructions per second(MIPS).
45.
46.
47.
48.
49. • As of June 2016, the fastest supercomputer in
the world was the Sunway TaihuLight, in the city
of Wixu in China. A few statistics on TaihuLight:
• 40,960 64-bit, RISC processors with 260 cores
each.
• Peak performance of 125 petaflops (quadrillion
floating point operations per second).
• 32GB DDR3 memory per compute node, 1.3 PB
memory in total.
• Linux-based Sunway Raise operating system (OS).
65. The top 10 computer
manufacturers as of March
2019.
66.
67. •Gateway Incorporated is a subsidiary
company of Acer Inc.
•The company manufactures and markets
computer hardware, personal computers,
computer monitors, servers, and computer
accessories.
68. • Apple Inc is an American
multinational company. The
company’s focus is on design and
marketing of consumer
electronics, computer software,
and personal computers. Best
known products of Apple include
iPod and iTunes, Mac laptop and
desktop computers, the OS X
operating system, and the
revolutionary iPhone and iPad.
69. •NEC is a Japanese multinational
IT company. The company
provides information
technology (IT) and network
solutions. NEC Corporation is
one of the world’s leading
providers of Internet,
broadband network and
enterprise business solutions.
70. • Fujitsu is a Japanese
multinational computer
hardware and IT services
company. Fujitsu is a
leading provider of IT
products and services
including hardware,
software, networking,
business solutions, and
more.
71. • International Business
Machines (IBM) is a United
States based multinational
technology and consulting
company. IBM manufactures
and sells computer hardware
and software, infrastructure,
hosting and consulting
services.
72. • Toshiba is a Japanese
multinational company.
Toshiba is a manufacturer
and suppliers of all kinds of
electrical products including
laptops, notebooks,
computer desktop and other
computer related products
and services.
73. • Lenovo is a Chinese-based
multinational computer
technology corporation.
This company
manufacturers desktops,
notebook, personal
computers, workstations,
servers, storage drives, IT
management software, and
computer-related products
and services.
74. • Dell is a American
multinational information
technology corporation.
Thic company provides
technology solutions,
services and support. Dell
manufacturers Laptops,
Netbooks, Tablet PCs,
Desktops, Monitors,
Servers, Storage and other
computer-relater
hardware.
75. • Acer ranks among the
world’s top five branded PC
vendors. This Taiwan-based
multinational computer
technology and electronics
corporation that
manufactures desktop and
laptop PCs, personal digital
assistants (PDAs), servers,
storage devices, displays,
smartphones and
peripherals and hardware.
76. • HP (Hewlett-Packard) is a
leading American
multinational computer
system manufacturer in the
world. They manufacturer
printers, laptops,
computers, servers, storage
devices, networking,
software, enterprise
solutions and much more.
