Technical Guide 1 & 2 Hardware and Software

How do companies decide what to buy? 2

How do you decide what to buy? 3

TG1.3 Computer Hierarchy Supercomputers Mainframe Computers Midrange Computers

TG1.3 Computer Hierarchy Microcomputers

What does hardware mean to you? Hardware 6

Hardware Consists of …. Central Processing Unit Primary Storage Secondary Storage Communication Technologies Input and Output Technologies 7

What technology do you need? Tablets vs. Laptops Tablet Comparisons Laptop Comparison Things to consider Purpose Central Processing Unit Primary Storage Secondary Storage 8

How computers processes information 9 CPU & Storage Input & Output

How computers processes information 10 Central Processing Unit Primary Memory Secondary Memory Example

CPU (Central Processing Unit) Designed to perform the actual computation or “number crunching” inside the computer. 32 vs. 64 bit processing Choosing the right processor 11

Memory - Where do we store information? 3.1 Primary Storage – handles small amounts of information to be used immediately by the CPU (internal) 3.2 Secondary Storage – stores larger amounts for extended periods of time (can be both internal or external) 12

Memory Capacity Bit Byte In this picture: represents the letter H Letter “H” = 8 bits = 1 byte Kilobyte (KB)~1,000 bytes Megabyte (MB)~1,000,000 bytes Gigabyte (GB)~1,000,000,000 bytes Terabyte (TB)~1,000,000,000,000 bytes Petabyte (PB)~ 1,000 TB Exabyte (EB)~ 1,000 PB Zettabyte~ 1,000 EB

Primary Storage 14 Register How much RAMHow much RAM? Cache ROM

Why the CPU and RAM is important? 15

Secondary Storage 16 Optical Storage (CD – 700 MB, DVD – 4.7 GB) Flash memory devices and thumb drives (GBs) External Hard Drives (TBs)

Input and Output Technologies Input Technologies Human Data-Entry Source-Data Automation 4.2 Output Technologies Monitors Printers

Input Technologies – Human Input 18 Input technologies then…. The “original” mouse A punch card for mainframe processing One of the first apple computers

Input Technologies – Human Input 19 Input technologies now….

Input Technologies – Human Input 20 Input technologies to come…. Microsoft multi-touch screen Microsoft Surface Computing offers a new interface for users Gesture Sensing

Output Technologies 21 E-Readers LG High Definition Monitors Laser Printers iPad

How do companies decide what to buy?: Strategic Hardware Issues What do organizations need to consider when thinking about hardware? How do they keep pace with advancements? How often should they upgrade? Will upgrading increase productivity? How do we assess this increase in productivity? 22

Additional Organization considerations: How are organizations structured? What are the needs of the organization? Do employees telecommute? What type of devices are needed? Will they work within the current environment of hardware being used within the organization? 23 How do companies decide what to buy?: Strategic Hardware Issues

TG2.1 Introduction to Software Software Computer program Stored program concept Documentation © Karsten Ehlers/Age Fotostock America, Inc.

Software Issues Software Defects Software Licensing Open Systems Open Source Softwar e © Karsten Ehlers/Age Fotostock America, Inc.

Types of Software System software Application software

TG2.3 Systems Software Operating Systems

Functions of the Operating System Graphical User Interface Social Interface Enhanced interfaces Google Glass Meta SpaceGlasses

Class Exercise You are responsible for setting up a new lab in the CIS Building. There will be a need for 30 devices accessing the network including at least 5 of these needing to be mobile. This lab will be used to teach MIS 213 and a programming class (VB.Net). What hardware/software would you suggest to accomplish the needs above? 29

Class Exercise Steps: 1. Determine how you will use the computers? 2. Choose computer software 3. Choose computer hardware 4. Protect you computer system 30