Management Information Systems
Unit 1: Computer System
Management Information System
Computer System
Venue: Liberty College, Anamnagar, KTM
Date: 18th July 2016
By: Laxman Pokhrel, BBA-MIS
Management Information Systems
Unit 1: Computer System
Contents
• Introduction to computer technology,
• Types of Computer Systems,
• Computer System Concepts,
• Memory (Primary Storage, Secondary Storage,
Cache),
• CPU- Central Processing Unit,
• Hardware (Input Devices, Output Devices),
• Software and its Classification
Management Information Systems
Unit 1: Computer System
Introduction to computer technology
• Computer is a human made technological
development.
• Advanced electronic device
• Takes raw data as input from the user and processes
these data under the control of set of instructions
(called program) and gives the result (output) and
saves output for the future use.
• It can process both numerical and non-numerical
(arithmetic and logical) calculations.
• Accepts data- processes data- produces outputstores results
Management Information Systems
Unit 1: Computer System
Computer history
Premechanical:- 3000 B.C. - 1450 A.D.
• First humans communicated only through speaking and simple drawings
known as petroglyths (signs or simple figures carved in rock).
Mechanical:- 1450 – 1840A.D.
• The development of book indexes and the widespread use of page numbers.
The first general purpose "computers".
Electromechanical:- 1840 – 1940A.D.
• The discovery of ways to harness electricity was the key advance made during
this period. Knowledge and information could now be converted into electrical
impulses.
Electronic:- 1940 A.D.- Present
• Modern development in technology.
Management Information Systems
Unit 1: Computer System
Computer System Concepts
• Computer System Concepts,
COMPUTER SYSTEM = HARDWARE + SOFTWARE+ USER
• Hardware = Internal Devices + Peripheral Devices
All physical parts of the computer (or everything that we
can touch) are known as Hardware.
• Software = Programs
Software gives "intelligence" to the computer.
• USER = Person, who operates computer.
Management Information Systems
Unit 1: Computer System
Computer System Concepts
The CPU
Input
Devices
Control
Unit
ALU
Registers
Primary
Storage
Secondary
Storage
Output
Devices
Communication
Devices
Management Information Systems
Unit 1: Computer System
Types of Computer Systems
• On the basis of work
• On the basis of size
• On the basis of brand
• On the basis of model
Management Information Systems
Unit 1: Computer System
Types of Computer Systems
Types of Computers
On the basis of
Work
Analog
On the basis of
Size
Digital
On the basis of
Model
Hybrid
On the basis of
Brand
Super
XT
IBM PC/ Branded
Mainframe
AT
IBM Compatible
Mini
PS/2
Apple/Macintosh
Micro
Management Information Systems
Unit 1: Computer System
Computer Memory
• Primary Memory
• Random Access Memory (RAM)
• Read Only Memory (ROM )
• Cache Memory
• Secondary Memory
• Magnetic tape
• Magnetic Storage Device
• Optical Storage Device
• Flash Disk
• Memory Cards and Cartridges
Management Information Systems
Unit 1: Computer System
Central Processing Unit
• A microprocessor that executes instructions to
perform processing tasks. CPU consists of:
•
•
•
•
Control Unit
Arithmetic-Logic Unit
Registers
Primary Storage
The CPU
Control
Unit
ALU
Registers
Primary
Storage
Management Information Systems
Unit 1: Computer System
Computer Hardware
• Hardware
• Input Devices
• Human-oriented
• Automated
• Output Devices
• Monitors
• Printers
• Voice
• Multimedia
Management Information Systems
Unit 1: Computer System
Computer Software
• System software
•
•
•
•
Operating System Software
Device Driver
Utility Software
Language Translator
• Application software
• Packaged Software
• Customized or Tailored Software
• Open Source Software
• Freeware, Shareware
Management Information Systems
Unit 1: Computer System
Next Class suggested reading for Quiz: Introduction and
Computer System
Knowledge base questions
• What is the strategic use of Software in Business?
• What is the strategic use of Hardware in Business?
Instructions:
Submit answers both electronic and the printed format
by next class (24th July 2016). Typed, Times New Roman
font, 12” font size, 1” margin each side. Avoid plagiarism