This document discusses different types of computers. It describes analog computers, which use continuous values for calculations related to physical quantities. Digital computers are then discussed, which use discrete binary values and have high speed, accuracy and readability. Hybrid computers that combine features of analog and digital computers are also mentioned. The document further categorizes computers as supercomputers, mainframes, minicomputers, microcomputers and servers based on their size and capabilities. Several examples are provided for each type along with their typical uses.

1. Different Types of Computer
Prepared by: Elrene M. Cruz

3. Computer
▪An electronic device that accepts
input, process data, stores data,
produces output, all according to a
series of stored instruction

6. Different Types of Computer
Prepared by: Elrene M. Cruz

7. Categories of Computers
▪ Analog Computer
▪ Digital Computer
▪ Hybrid Computer

8. Analog Computer
▪ Analog computer works with continuous values.
▪ It has very limited memory.
▪ It has no state.
▪ It can perform certain types of calculations.
▪ It is difficult to use

9. Analog Computer
▪ Analog computers is used in engineering and scientific
applications.
▪ Analog computer is used for calculations and
measurement of physical quantities such as weight,
height, temperature and speed.
▪ Its readability is low.
▪ Its accuracy is comparatively low.

10. Analog Devices:
Multimeter- measures
voltage, current,
resistance
Analogue Positive
Pressure Gauges
Odometer and
Speedometer

11. Example:
Seismograph

12. Digital Computer
▪Digital computers works with discrete value
(0,1). It can work only with digits
▪It can store large amount of data.
▪It has two states on and off
▪Its speed of calculation is very high.
▪It is easy to use.

13. Digital Computer
▪Digital computer is widely used in almost all
fields of life.
▪Digital computer is used to calculate
mathematical and logical operations.
▪Its accuracy is high.
▪Its readability is high.

14. Examples:

15. Hybrid Computer
▪Hybrid computes are computers that exhibit
features of analog computers and digital
computers.
▪The digital component normally serves as the
controller and provides logical operations.

16. Examples:
Computers at the Hospital

17. Classification of Computers
▪ Supercomputers
▪ Mainframes
▪ Minicomputer (Midrange computers)
▪ Microcomputers
▪ Server

19. Supercomputers
▪ Are the largest, fastest, most powerful and
most expensive computers made.
▪ Are fast because of multiprocessing—the
computer performs many tasks
simultaneously.

21. Mainframes
▪ These are used in banking, finance, government and
other public and private enterprises. They are large,
powerful computers designed to handle great
volumes of complex data and process bulk
information. This makes them ideal for the business
and national security environment.
▪ It has the capacities to host multiple operating
systems and opiate as a number of virtual machines
and can substitute for several small servers

23. Minicomputers or Midrange Computers
▪Are multi-user, multiprogramming
systems.
▪Minicomputers can perform the same
tasks as Mainframe computers but are a
little slower.

25. Microcomputers (Personal Computers)
▪Single-user computers.
▪Supports multitasking—allowing the user to
switch between tasks.

26. Example of PCs
1. Desktops

27. Example of PCs
2. Laptop

28. Example of PCs
3. Netbook

29. Example of PCs
4. PDA-
Personal Digital
Assistant or
Palmtop

30. Example of PCs
5. Tablet
Computers

31. Example of PCs
6. Wearable
Computer

32. Servers
▪These are computers designed to provide
services to client machines in a computer
network. They have large storage capacities
and powerful processor

36. Seatwork: Directions
▪Identify the type of computer being
described in the following sentences.
Write your answer on ¼ sheet of paper.

37. 1. They are computers designed to provide
services to client machines in a computer
network
2. These are mobile computers that are very
handy to use.
3. They fall in the category of laptops, but are
inexpensive and relatively smaller in size.
4. They are also called mid-range system or
workstations

38. 5. A type of computer which is intended be used
on a single location.
6. Computers that have the capacities to host
multiple operating systems and operate as a
number of virtual machines and can substitute for
several small servers.
7. A computer with a microprocessor and its
central processing unit.
8. They use digital circuits and are designed to
operate on two states, namely bits 0 and 1

39. 9. These computers can be worn on the body
and are often used in the study of behavior
modeling and human health
10. It is a handheld computer and popularly
known as palmtop.

42. 1. Tablet computers
2. Severs
3. Minicomputers
4. Microcomputers
5. Netbook
6. Desktop
7. Digital Computers
8. Mainframes
9. PDA-Personal Digital Assistant
10. Wearable computer

43. Assignment
▪Give 5 peripheral devices of the
computer system (with pictures
and descriptions)