The document discusses computers and their basic components. It defines a computer and describes their basic functions of input, storage, processing, and output. It then lists and describes common input devices like keyboards, mice, and scanners. It also discusses output devices like monitors, projectors, and speakers. The document outlines processing and storage components inside computers like the central processing unit, memory cards, hard disks, and USB flash drives. It categorizes different types of computers and transmission media used to connect computers.

1. The Computer
BY: HANNAH MAGAÑAN

2. Definition
 an electronic device for storing and processing data, typically
in binary form, according to instructions given to it in a
variable program.

3. Function
 There are basically for basic functions of computers - input, storage,
processing and output. These are described below: Input: Receiving or
accepting information from outside sources. The most common way of
performing this function is through the information entered through the
keyboard and the click of mouse.

4. Input Devices
The mouse, sometimes called a pointer, is a hand-operated Computer mouse
screen.
A keyboard typically has characters engraved or printed on the keys (buttons) and each
press of a key typically corresponds to a single written symbol.
Joysticks are often used to control video games, and usually have one or more push-
buttons whose state can also be read by the computer. A popular variation of the
joystick used on modern video game consoles is the analog stick
Joystick
Computer keyboard
Computer mouse
All these scanners produce two-dimensional images of subjects that are usually flat, but
sometimes solid; 3D scanners produce information on the three-dimensional structure of
solid objects.
Image scanner

5. Output device
Projector
Computer speakers
microphone
an instrument or device used for observing, checking, or keeping a
continuous record of a process or quantity.
monitor
a person who plans and sets up a project or enterprise.
Computer speakers, or multimedia speakers, are speakers sold for use with computers,
although usually capable of other audio uses, e.g. for an MP3 player.
an instrument for converting sound waves into electrical energy variations,
which may then be amplified, transmitted, or recorded.

6. Processing Device
Network card
network card, NIC, or Network card is an electronic device that connects a computer to a computer network,
usually a LAN. It is considered a piece of computer hardware.
A memory card reader is a device for accessing the data on a memory card such as a CompactFlash (CF),
Secure Digital (SD)Multimedia card (MMA
Memory card reader
A microphone, colloquially nicknamed mic or mike
is a transducer that converts sound into an electrical
signal.
Microphone
Central processing unit
the part of a computer in which operations are controlled and executed.

7. Storage Devices
Compact disc (CD) is a digital optical disc data storage format released in
1982 and co-developed by Philips and Sony.
Compact disc
a rigid nonremovable magnetic disk with a large data storage capacity.
Hard disk
A USB flash drive, also variously known as a USB drive, USB stick, thumb drive, pen drive, jump
drive, disk key, disk on key, flash-drive, memory stick or USB memory,
USB flash drive
a high-capacity, self-contained storage device containing a read-write mechanism
plus one or more hard disks, inside a sealed unit.
Hard drive

8. Types of computer
The case may be oriented horizontally or vertically and placed either underneath, beside, or on top
of a desk.
Desktop
The supercomputers were introduced in the 1960s, made initially, and for decades primarily, by
Seymour Cray at Control Data Corporation (CDC), Cray Research and subsequent companies
bearing his name or monogram.
Supercomputer
A computer case, also known as a computer chassis, tower, system unit, cabinet, base unit, or simply
case, is the enclosure that contains most of the components of a computer (usually excluding the
display, keyboard and mouse).
Computer Tower
a small vertical case for a computer, or a computer mounted in such a case.
Minitower

9. Types of computer
A standard laptop combines the components, inputs, outputs, and capabilities of a desktop
computer,
Laptop
Mainframe computer
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.
Microcomputers became popular in the 1970s and 1980s with the advent of increasingly
powerful microprocessors.
Microcomputer
a computer of medium power, more than a microcomputer but less than a mainframe.
Minicomputer
a computer that is portable and suitable for use while traveling.

10.  a computer designed for use by one person at a time.
TYPES OF COMPUTER
personal computer
Server (computing), a system that responds to requests across a
computer network to provide, or help to provide, a network or data
service
Server

11. Transmission Media
 Transmission media is a pathway that carries the information from sender to
receiver. We use different types of cables or waves to transmit data. Data is
transmitted normally through electrical or electromagnetic signals. An
electrical signal is in the form of current.

12. TYPES OF TRANCEMISSION MEDIA
a cable consisting of two wires twisted around each other, used especially for telephone or
computer applications.
Twisted pair
consisting of or using thin flexible fibers with a glass core through which light signals can be
sent with very little loss of strength.
Fiber optic
Coaxial cable, or coax (pronounced , is a type of electrical cable that has an inner conductor
surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.
Coaxial cable

13. TYPES OF TRANSMITION OF MEDIA
Infrared radiation, or simply infrared or IR, is electromagnetic radiation (EMR) with longer
wavelengths than those of visible light, and is therefore invisible, although it is sometimes
loosely called infrared light
Infrared
This article is about the electromagnetic wave. For the cooking appliance, see Microwave
oven. For other uses, see Microwaves
Microwave
Radio waves are a type of electromagnetic radiation with wavelengths in the
electromagnetic spectrum longer than infrared light.
Radio wave

14. Major Part Of The Computer
a high-capacity, self-contained storage device containing a read-write mechanism plus one or
more hard disks, inside a sealed unit. Also called hard disk drive.
Hard drive
a flexible removable magnetic disk, typically encased in hard plastic, used for storing data.
Floppy disk
In electricity, a switchboard for circuits used in the distribution of power, as distinguished from a
switchboard for lighting-circuits.
Power-board
a printed circuit board containing the principal components of a computer or other device, with
connectors into which other circuit boards can be slotted.
Motherboard

15. Southbridge PCI slots
Backup battery
AGP slot
Connectors for peripherals
(e.g.audio,Ethernet,serial
port,USB,etc)
CPU socket
ROM
Northbridge with
heart sink
Hard drive slots
Dram memory slots
Power connector

16. Power port
Keyboard
USB
Mouse
Parallel port Microphone
VGA Video
Speaker
Monitor
A/C Switch