This document provides information about computer hardware components and related topics. It discusses the main parts of a computer including the input, central processing, memory, and output units. It also describes various hardware components such as printers, mice, and storage measurement units like bits, bytes, kilobytes, and more. The document also covers topics like prefer vs. rather, pronouns, and using pronouns with auxiliary verbs.

1. Unit 2 Hardware
Content
* Hardware
* Parts of A Computer.
* Output devices
* Printers
* Mouse
* Buying Computer
*The Names which are used to measure in
storage
* Prefer and Rather
* Pronoun

2. Unit 2 Hardware
Hardware is any physical computer component of a computer
system. There are 5 parts when divide as duties of hardware
computer as follow:
Input Unit
Central Processing Unit – CPU
Memory Unit
Output Unit
Peripheral Equipment

3. Unit 2 Hardware
Input Unit CPU
Memory
Unit
Output
Unit
Keyboard
Mouse
Scanner
Touch Pads
Digital Camera
Chip
Pentium III
Pentium 4
Centrino
Celeron
Dulon
Athlon
ROM
RAM
Hard Disk
Floppy Disk
CD
VCD
CD-R
DVD
Pen Drive
Thump Drive
Flash Drive
Zip Drive
Tape Backup
Memory Card
Monitor
Dot Matrix
Printer
Ink-Jet
Printer
Laser Printer
Plotter
Speaker

4. Unit 2 Hardware
Practice

5. Unit 2 Hardware
16
Card reader
6
CD/DVD drive
14
Digital camera
8
Floppy disk drive
7
Hard disk drive
15
Keyboard
9
Microphone
13
Modem
3
Monitor
17
Mouse
5
PC video camera
1
Printer
11
Scanner
4
Screen
2
Speaker
10
System unit
12
USB flash Drive
Answer

6. Unit 2 Hardware
Practice

7. Unit 2 Hardware
Practice 9 a. AGP slot
8 b. Backup batter
10 c. Connectors for peripherals
12 d. CPU heat sinks ad mounting
points for fans
11 e. CPU socket
2 f. DRAM memory slots
5 g. ROM
3 h. Hard drive slots
4 i. Northbridge with heat sink
7 j. PCI slot
1 k. Power connector
6 l. Southbridge

8. Unit 2 Hardware
Printers
Dot matrix
Ink-jet
Laser

9. Unit 2 Hardware
Printers
Photo Printer
Dye-Sublimation Printer
Thermal Printer

10. Unit 2 Hardware
Printers
All-in-One Printer
Plotter
3D Printer
Wireless Printer

11. Unit 2 Hardware
Mice
Mechanical mouse
A mouse has a ball underneath that can roll in an
direction along two planes, and its movements are
converted by sensors into the appropriate signals.
Optical mouse
An optical mouse utilizes light to track mouse
movements over a special grid.
Wireless Mouse
A mouse that sends signals to the computer without
a cord.

12. Unit 2 Hardware
The Names which are used to measure in storage
A bit is 1 or 0
A byte is 8 bit. And 1 byte = one letter or punctuation mark
01101000 = h
and
01101000 01100101 01101100 01101100 01101111 = hello.
for example:
a kilobyte is one thousand letters.
a megabyte is one thousand kilobytes
a gigabyte is one thousand megabytes.
a terabyte is one thousand gigabytes
a petabytes is one thousands of terabytes.
a brontabyte is more than
10,000,00,000,000,000,000,000,000,000 bytes.

13. Unit 2 Hardware
Rather and Prefer
Would rather + base verb
Would prefer + infinitive/noun
Use Rather and Prefer for telling that which one you love more
than another one.

14. Unit 2 Hardware
Rather and Prefer
Ask
Would + Subject + Rather + Base Verb
Would + Subject + Prefer + To + Verb or
Would + Subject + Prefer + Noun
Answer
Subject + Would + Rather + Base Verb
Subject + Would + Prefer + To + Verb or
Subject + Would + Prefer + Noun

15. Unit 2 Hardware
Rather and Prefer
• Would he rather use touch screen or mouse?
• He would rather use mouse.
• Would you prefer laser printer or ink-jet printer?
• I prefer ink-jet printer.
• Would Nicky prefer to operate spreadsheet or word
processing?
• He would prefer to operate spreadsheet.
If there are Not in sentences. Place them after both rather
and prefer but before verb or noun. For example:
• I would rather not listen that speaker.
• I would prefer not to crop these pictures.

16. Unit 2 Hardware
Pronoun
Subject Object
Possessive pronoun
have noun have not noun
I me my mine
We us our ours
You you your Yours
They Them Their Theirs
He Him His His
She Her Her Hers
It it its its
Pronoun means the words are used for calling instead name of human
animal or stuff.

17. Unit 2 Hardware
Pronoun
Possessive pronoun have noun
To use when tell to own of something by there is
noun put next the possessive pronoun word.
Possessive pronoun have not noun
To use when tell to own of something by have to
know before that what are you saying.

18. Unit 2 Hardware
Questions
Answers
Possessive pronoun
have noun
Possessive pronoun
have not noun
Whose is this keyboard? It’s my keyboard. It’s mine.
Whose are these
monitors?
They’re our
monitors.
They’re ours.
Whose is thumb drive? It’s your thumb
drive.
It’s yours.
Whose are printers in
the office?
They’re their
printers.
They’re theirs.
Whose is this mouse It’s his mouse. It’s his.
Whose is a speaker on
table?
It’s her speaker. It’s hers.

19. Unit 2 Hardware
Pronoun with Auxiliary Verbs
Subject V.be Past
tense
of be
V.do Past
tense
of do
V.have Past
tense
of have
I am was do did have had
We are were do did have had
You are were do did have had
They are were do did have had
He is was does did has had
She is was does did has had
It is was does did has had

20. Unit 2 Hardware
For example
I have a smart PC computer.
Has she got any PC computer.
No, she has not any PC computer.
She has a laptop computer.
They had 2 gb of RAM but they enhance to 4 gb Now.
Do they have Floppy disk?
Did he divide partition?
Does she read manual for setup
printer device?
Do you choose external hard disk
by yourself?
I’m student.
We are clever.
You are teacher.
They are mainboards.
He is Somporn.
She is Pimprapai.
It is wireless.