Date post: | 08-Apr-2018 |
Category: |
Documents |
Upload: | awal-marcello-syawal |
View: | 234 times |
Download: | 0 times |
of 59
8/7/2019 CH1 - COMPUTER SYSTEM
1/59
1
8/7/2019 CH1 - COMPUTER SYSTEM
2/59
SYNOPSIS:
This topic introduces parts of computer systems and computer hardware. It alsoserves to introduce concept of standaloneand networked computers in a company. Italso covers an introduction part tooperating system, Windows and filemanagement using Windows Explorer.
2
8/7/2019 CH1 - COMPUTER SYSTEM
3/59
What is a computer?
A n electronic device, which operatesunder the control of instructions, and
stores data or information in its ownmemory unit A n electronic device that accept input
and store a set of instructions whichperform a task and produce outputs
3
8/7/2019 CH1 - COMPUTER SYSTEM
4/59
The Evolution Of Computer
4
195 4 -1959Transistor
1939-1954
Vacuum TubeBy John V. A tanasoff
1959-1971Integrated Circuit
1971-1991Microprocessor or CPU1991
World Wide WebBy Tim Berners- Lee
8/7/2019 CH1 - COMPUTER SYSTEM
5/59
First Generation (1939-1954) VacuumTubey
used vacuum tubes for circuitry andmagnetic drums for memoryy expensive and bulkyy used machine language for computingy could solve just one problem at a timey used punched card for input
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
6/59
Examples of First Generation Computers :
A tanasoff-Berry Computer 1939
UNIVA C1951
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
7/59
First generation vacuumtube
Punch card
8/7/2019 CH1 - COMPUTER SYSTEM
8/59
S econd Generation (1954-1959) Transistor
y smaller and cheaper y emission of large amounts of heat from
the computer - computers were subjectto damage
y Used assembly languages allowedprogrammers to specify instructions inwords
y
used punched cards for input
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
9/59
Examples of Second GenerationComputers :
Regency transistor radio 195 4 Philco and Emerson transistor radios
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
10/59
Third Generation (1959-1971) Integrated
Circuity increase in speed and efficiency of computersy keyboards and monitors became the input-
output devices.y Became accessible to a mass audience
because they were smaller and cheaper thantheir predecessors
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
11/59
Examples of Third GenerationComputers :
Early transistor calculators - Casio
"Mini 1972Minicomputer 1973
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
12/59
Fourth Generation (1971-1991) Microprocessor y Reduce in the size and price of the computers
at the same time increasing power, efficiencyand reliability.
y A llowed the networking of computers for thesharing of data
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
13/59
Examples of Fourth Generation Computer:
A pple I of 1976 A pple II personal computer
1978
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
14/59
Fifth Generation (1991 Beyond) World WideWeby WWW (World Wide Web) was developed by Tim
Berners in 1991y The first web browser was created in 1993y 199 4 Netscape Navigator 1.0y 1996 Internet Explorer 3.0y based on principles of artificial intelligence and
natural language recognition
y computers capable of organizing themselves
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
15/59
Examples of Fifth GenerationComputer:
Nokia 9210Communicator
w earable computers
A pple G4
The evolution o f computer
8/7/2019 CH1 - COMPUTER SYSTEM
16/59
Components o f a Computer
16
8/7/2019 CH1 - COMPUTER SYSTEM
17/59
Components inside a Computer
17
8/7/2019 CH1 - COMPUTER SYSTEM
18/59
B asic Components o f a Computer
A ll general purpose computers requires: Memory Device
Mass storage device Input device Output device
Central Processing Unit (CPU)
18
8/7/2019 CH1 - COMPUTER SYSTEM
19/59
8/7/2019 CH1 - COMPUTER SYSTEM
20/59
M ass S torage Device
A llows computer to permanently retainlarge amount of data . Examples:
y Disc Drive
y USB Drive
20
8/7/2019 CH1 - COMPUTER SYSTEM
21/59
Input Devices The devices that conduct through data
and instructions by entering a computer.Examples: mouse, keyboard, joystick,
touch pad, track ball, track point,microphone, pc camera, scanner, etc
21
8/7/2019 CH1 - COMPUTER SYSTEM
22/59
8/7/2019 CH1 - COMPUTER SYSTEM
23/59
Input, output, storage and communication devices
23
8/7/2019 CH1 - COMPUTER SYSTEM
24/59
Central P rocessing Unit (C P U)
The component that executesinstructions.
24
8/7/2019 CH1 - COMPUTER SYSTEM
25/59
The di ff erences o f standaloneand networked computers
S tandalone computers Networked computers
Not connected to any computer or network.
Connected to a computer or network.
Cannot share resources. Can share resources.
More secured. Vulnerable to any source of threat
25
8/7/2019 CH1 - COMPUTER SYSTEM
26/59
N ETWORK ED CO M P UTERExamples o f network
LA N(L ocal A rea
Network)
MA N(Metropolitan A rea
Network)
WA N(Wide A reaNetwork)
- Short distance(office building,school, home)
- Physical area larger than L A N but smaller than W A N (city)
- Large physicaldistance
- Typically owned,controlled andmanaged by singleperson or organization
- Typically ownedand operated by asingle entity such asgovernment body or large corporation
- Most W A Ns (likethe Internet) are notowned by any oneorganization butrather exist under collective or distributed ownershipand management
8/7/2019 CH1 - COMPUTER SYSTEM
27/59
Advantages o f Computer
N etwork Files can be stored on a central computer
(server) allowing data to be sharedthroughout an organization.
Files can be backup more easily. Software and resources can be centrally
managed. A llow software installation on workstations. Security and performance ability is
centralized. Expensive device can be shared. Files can be access from any workstation.
27
8/7/2019 CH1 - COMPUTER SYSTEM
28/59
8/7/2019 CH1 - COMPUTER SYSTEM
29/59
Computer application so f tware
Capability of acomputer directlyand thoroughly to atask that a user wish to perform.
29
8/7/2019 CH1 - COMPUTER SYSTEM
30/59
Functions o f OS and application so f tware
O perating S ystem A pplication S oftware
Host for application program thatruns on the machine.
Programs that are hosted by theoperating system.
Controls the basic function ex:
displaying Windows.
It runs based on what the user
wants.Handles the operation of thehardware.
A lso can run another applicationprogram.
Handles the operation of thesoftware application on desktop.
Performs productive task for theusers. (Non-computer related).
Receiving information from thekeyboard, mouse, touchpad, etc. Provides with a user friendlyinterface.
Displaying information on thescreen.
Guide the user how to use it.
Storing data on the hard disk.
30
8/7/2019 CH1 - COMPUTER SYSTEM
31/59
Examples o f O perating S ystem Usedin P ersonal Computer
31
Based on Unix system.Created by Linus
Torvalds 1992.Free / open source.More secured andflexible.Require technical
knowledge.
Microsoft company 1983.Extension of MS-
DOS.Most popular in
Malaysia.
A pple Inc. 198 4 .Most add-ons areequivalents as Windows.
Open Group company2007.Essential indeveloping Internetprograms.Open SystemsPortable, multitasking,multiuser in a timesharing configuration.
8/7/2019 CH1 - COMPUTER SYSTEM
32/59
Example o f N etwork B ased OS
Used inP
ersonal Computer Novell Inc. Latest version is
Netware 6.5 in.
Microsoft. July 1993.
32
8/7/2019 CH1 - COMPUTER SYSTEM
33/59
S o f tware Application Functions
Word Processingy Used for production of any
printable material.
33
8/7/2019 CH1 - COMPUTER SYSTEM
34/59
Word P ad
34
8/7/2019 CH1 - COMPUTER SYSTEM
35/59
Window Live Writer 2009
35
8/7/2019 CH1 - COMPUTER SYSTEM
36/59
K Word
36
8/7/2019 CH1 - COMPUTER SYSTEM
37/59
O pen Off ice.org Writer
37
8/7/2019 CH1 - COMPUTER SYSTEM
38/59
Adobe R eader
38
8/7/2019 CH1 - COMPUTER SYSTEM
39/59
M icroso f t Word
39
8/7/2019 CH1 - COMPUTER SYSTEM
40/59
S o f tware Application Functions
Spreadsheety Simulate a paper
work sheety Display cells/grids
containing
alphanumerictext/numeric values.
y A utomatic calculationfrom formula.
4 0
8/7/2019 CH1 - COMPUTER SYSTEM
41/59
M icroso f t Excel 2007
4 1
8/7/2019 CH1 - COMPUTER SYSTEM
42/59
8/7/2019 CH1 - COMPUTER SYSTEM
43/59
Apple N umbers
4 3
8/7/2019 CH1 - COMPUTER SYSTEM
44/59
G numeric
44
8/7/2019 CH1 - COMPUTER SYSTEM
45/59
4 5
8/7/2019 CH1 - COMPUTER SYSTEM
46/59
LO TUS 1-2-3
4 6
8/7/2019 CH1 - COMPUTER SYSTEM
47/59
S o f tware Application Functions
Presentationy Display information in a form
of slideshow.y Can replace older visual aid
technology.y More interesting to view.
4 7
8/7/2019 CH1 - COMPUTER SYSTEM
48/59
8/7/2019 CH1 - COMPUTER SYSTEM
49/59
M icroso f t Off ice P ower P oint
4 9
8/7/2019 CH1 - COMPUTER SYSTEM
50/59
Apples K eynote
50
M i d M P
8/7/2019 CH1 - COMPUTER SYSTEM
51/59
M ind M ap P ro
51
8/7/2019 CH1 - COMPUTER SYSTEM
52/59
Visual M ind
52
8/7/2019 CH1 - COMPUTER SYSTEM
53/59
S o f tware Application Functions
Project managementy To Manage Projects
Schedule.y Building Gantt Charty Focus on task, milestone,
task duration, resource name,Start and Finish Date, etc.
53
8/7/2019 CH1 - COMPUTER SYSTEM
54/59
S o f tware Application Functions
Web Browser y Window that displays
websites.Example : Microsoft InternetExplorer, Opera, MozillaFirefox.
54
8/7/2019 CH1 - COMPUTER SYSTEM
55/59
8/7/2019 CH1 - COMPUTER SYSTEM
56/59
B rowser : F ire f ox
8/7/2019 CH1 - COMPUTER SYSTEM
57/59
B rowser : O pera
8/7/2019 CH1 - COMPUTER SYSTEM
58/59
WHY CO M P UTER IS SO PO WER F UL?
Speed Reliability Storage Capabilities Productivity Efficiency Cost Reduction Decision making
8/7/2019 CH1 - COMPUTER SYSTEM
59/59
: F UN CTIONS (Hands on)
Starts andShutdown.
The use of desktopenvironment.y Windows Desktop
Start Menu.y Windows Desktop
Taskbar.y Desktop Screen
Display.y Windows Desktop
Iconsy Windows Desktop
Toolbar
Execute OSapplications.
OS Help Functions.
Function of OSsystem shell. File and folder
management. Copy Rename Move Delete