HARDWARE PLANNING AND EVALUATION

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POWERPOINT OUTLINE

1 . H AR D WA R E P L AN N I N G F O R T

T H E LO N G R A N G E .

2 . H AR D WA R E E VALUAT I ON

C R I T E R I A

3 . S P E C I A L C ON S I D E R AT I ON S

F O R A D M I N I S T R AT IV E

AP P L I C AT ION S

4 . S P E C I A L C ON S I D E R AT I ON S F OR

I N S T R U C T I ON A L A P P L IC AT I O N S

HARDWARECONSISTS OF THE PHYSICAL DEVICES ASSOCIATEDWITH A COMPUTER SYSTEM.

COMPUTER HARDWARE- REFERS TO THE PHYSICAL PARTS OF A COMPUTER AND RELATED DEVICES. INTERNAL HARDWARE DEVICES INCLUDE MOTHERBOARDS, HARD DRIVES, AND RAM. EXTERNAL HARDWARE DEVICES INCLUDE MONITORS, KEYBOARDS, MICE, PRINTERS, AND SCANNERS.

SIX HARDWARE COMPONENTS

1 . C P U - C E N T R A L P R O C E S S I N G U N I T- T H E A C T U A L H A R D W A R ET H A T I N T E R P R E T S A N D E X E C U T E ST H E P R O G R A M ( S O F T W A R E ) I N S T R U C T I O N SA N D C O O R D I N A T E SH O W A L L T H E O T H E R H A R D W A R ED E V I C E S W O R K T O G E T H E R .

2. PRIMARY STORAGE IS THEC O M P U T E R ’ S M A I N M E M O RY , W H I C H C O N S I S T S O F T H E RA N D O MAC C E S S M E M O RY ( RA M ) , C AC H E M E M O RY , A N D T H ER E A D - O N LY M E M O RY ( R O M ) T H AT I S D I R E C T LY AC C E S S I B L E T O T H E C P U .

3 . SECONDARY STORAGE CONSISTS OF EQUIPMENT DES IGNED

T O S T O R E L A R G E VO LU M E S O F DATA F O R LO N G -T E R M S T O RAG E . S E C O N DA RY S T O RAG E D E V I C E S A R E N O N VO L AT I L E A N D D O N O T LO S E T H E I R C O N T E N T S W H E N T H E C O M P U T E R I S T U R N E D O F F. S O M E S T O RAG E D E V I C E S , S U C H A S A H A R D D I S K , O F F E R E A S Y U P DAT E C A PA B I L I T I E S A N D A L A R G E S T O RAG E C A PAC I T Y. O T H E R S , S U C H A S C D - R O M S , O F F E R L I M I T E D U P DAT E C A PA B I L I T I E S B U T P O S S E S S L A R G E S T O RAG E C A PAC I T I E S .

4 . I N P U T D E V I C E I S E Q U I P M E N TU S E D T O C A P T U R E I N F O R M A T I O NA N D C O M M A N D S .

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6 . C O M M U N I C A T I O N D E V I C E I S E Q U I P M E N T U S E D T O S E N D I N F O R M A T I O N A N D R E C E I V E I TF R O M O N E L O C A T I O N T O A N O T H E R .

MAJOR HARDWARE EVALUATION FACTORS

HARDWARE

DECISION

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expandabity Ergonomic

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Software availabili

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VendorCost

Performance

Compatibility

EVALUATING HARDWARE CAN BE A COMPLICATED PROCESS. FOR SCHOOL DISTRICTS WITH LARGE MAINFRAME COMPUTER SYSTEMS, ACQUIRING HARDWARE MEANS INVESTMENT OF MILLIONS OF DOLLAR FOR MANY YEARS IN A PARTICULAR VENDOR. IN THE PUBLIC SECTOR, ADMINISTRATORS WILL LIKELY USE COMPETITIVE BIDING PROCEDURES THAT MAY REQUIRE IDENTIFYING A FORMALIZED EVALUATION PROCEDURE TO PROSPECTIVE BIDDING. BACK

ARE VERY IMPORTANT FACTORS FOR LONG-RANGE PLANNING. MODULARITY, REFERS TO THE INTERCHANGEABILITY OF COMPONENTS OR PARTS OF A HARDWARE SYSTEM. EXPANDABILITY, IS THE ABILITY OF COMPUTER HARDWARE TO GROW OR EXPAND AS A NEW APPLICATIONS ARE DEVELOPED OR AS OLD APPLICATIONS BECOME LARGER. TECHNOLOGY IS CONSTANTLY EVOLVING. TO EXPAND NEWLY PURCHASED EQUIPMENT SHOULD NOT REFLECT OLD TECHNOLOGY BEING PHASED OUT. Back