MIS Chapter 4

Hardware Systems

Review• Five competitive forces

– Customer bargaining power

– New entrant threat

– Supplier bargaining power

– Substitution threat

– Industry rivalry

• An organization responds by choosing a competitive strategy

• Competitive strategy defines value chains and linkages (information systems).

Seth Godin

Four Computer Operations

• Input• Processing

• Output

• Storage

“A computer is something that does stuff to data.”

• Binary digits (bits)– Used to represent data

• Bit is either zero or one

• Sizing Computer Data– Bytes– 8-bit chunk equals 1 byte– Size of main memory, storage devices etc.

Data Defined

Four Computer Operations

Input Systems

• Keyboard• Mouse• Microphone• Video camera• Image scanner• Information scanner (bar code scanner, scantron

machine)• Digital Pen• Graphics Tablet

Livescribe Pen

Keyboard & Mouse

• Ergonomics• Function Keys• Optical Mouse• Wireless

Microphones

• Customer Service• Interviewing• Recording webinars• Podcasts• Conferencing

Cameras

• Quality Control• Video Marketing • Webinars• Video Conferencing

Scanner

• Office Efficiency• Digitally sign paperwork.

Printers

• Inkjet• Laser• Dot-Matrix