Business Computers.

Laptops and Netbooks.

thin client

Importance of Client/server Technology

Introduction

Used in almost all automated library systems, client/server technology is the computer architecture. Client/Server technology is computer architecture for separating the application’s functions into two or more distinct parts. Client/Server technology divides functions into client (requestor) and server (provider) subsystems, with standard communication methods (such as TCP/IP and z39.50). To facilitate the sharing of information between them, it divides the functions. On the desktop computer the client presents and manipulates data. To store and retrieve protected data the server acts like a mainframe. The machines can perform their duties to their best.

Characteristics

The main characteristics of Client Server Technology is as under-

• By the differences in their performing tasks the client and server can be differentiated from one another.

• The client and server generally function on different computer platforms.

• One or more servers may be connected by the clients.

• Multiple clients may be connected by the servers at the same time.

• Without affecting each other the client or server may be upgraded.

• By requesting a service the clients always initiate the dialogue.

In a client/server environment a client PC almost does the following:

• screen handling

• menu or command interpretation

• data entry

• help processing

• error recovery

A server can be anywhere along the dividing line and with a broad range between the clients. Only the user interface has been moved onto the client at one end; at the other end the database may be distributed.

Along the range there are at least five points:

1.Distributed presentation: The server and the client partly handle the presentation

2. Remote presentation: The client handles or controls the entire presentation

3. Distributed logic: The server and the client partly handle the application logic

4. Remote data management: The server handles or controls the entire Database management

5. Distributed database: The server and the client partly handle the Database management

In a library environment there are two major applications for client/server:

1) For an automated library system as the architecture- To facilitate use of this system a vendor designs a system using client/server technology to access multiple servers to improve productivity and to bring together multiple product lines.

2) To linking heterogeneous systems as an approach- To facilitate transparent access a vendor designs a client to systems of other vendors and from others a server to facilitate transparent access to its system.

Benefits

The benefits of client/server computing are as under

1) In spite of changing the legacy application it is much easier to implement client/server

2) Move to rapid application development and new technology like object oriented technology

3) For development and support it is a long term cost benefits

4) To support new systems it is easy to add new hardware like document imaging and video teleconferencing

5) For each application it can implement multiple vendor software tools

Client/Server technology is proved much cost efficient and feasible in a mainframe environment.

Concerns

The companies implement client/server technology on the following concerns-

• Between the client and server where there are many levels of complexity and compatibility issues

• Since you will need to maintain the old system (mainframe) and the new client server architecture development cost will rise in the short term

• There are many layers of complexity and compatibility issues between the client and server.

• Cost will rise in the short term since you will need to maintain the old system (mainframe) and the new client server architecture development.

• Software’s competency such as tools of security and management are not as mature as mainframe counterparts.

• With these tools takes time to become proficient.

• At giving up control of a centralized computing environment Information System departments may draw back.

About the Author

Smita, is the author of Client Server Technology . She was inducted into this profession just two years back.

Can a thin client run without a network connection?

Thin clients have light processors and minimal power needs. These are two specs I need for a robotics project I have in mind. I want to run linux on it and program it with python.
Well, I'll put it another way. Can I utilize a thin client terminal computer as an minimal Linux SBC thick client?

Well... my definition of thin client is when a client does not need any secondary programs just to run a program. Say in Java you need a JRE or Java Runtime Environment just to run an applet in a browser, then that is a thick client, whereas if it is a PHP script, it would run even though there is no runtime program running in your machine, then that is a thin client. Therefore, a thin client would not run if network connection is not available.

Energy-Use Comparison: Thin Client vs PC

V30LE THIN CLIENT 1.2GHZ $399.99 V30LE THIN CLIENT 1.2GHZ

HP gt7720 Thin Client $743.61 HP NG814AA gt7720 Thin Client

HP t5545 Thin Client $259.2 HP NH123UT#ABA t5545 Thin Client

HP t5540 Thin Client $295.13 HP VA213AT#ABA t5540 Thin Client

HP t5325 Thin Client $211.08 HP VY623AT#ABA t5325 Thin Client

HP VU901AA Thin Client $612.8 HP VU901AA#ABA VU901AA Thin Client

HP VU899AT Thin Client $383.32 HP VU899AT#ABA VU899AT Thin Client

HP VU900AT Thin Client $410.3 HP VU900AT#ABA VU900AT Thin Client

HP VU904AT Thin Client $410.27 HP VU904AT#ABA VU904AT Thin Client

HP gt7725 Thin Client $781.96 HP NG816AA#ABA gt7725 Thin Client

HP VU899AA Thin Client $551.55 HP VU899AA#ABA VU899AA Thin Client

HP VU903AT Thin Client $356.65 HP VU903AT#ABA VU903AT Thin Client

HP VU902AT Thin Client $453.09 HP VU902AT#ABA VU902AT Thin Client

HP VU903AA Thin Client $467.22 HP VU903AA#ABA VU903AA Thin Client

HP t5630w Thin Client $448.49 HP VC069AT#ABA t5630w Thin Client

HP VU901AT Thin Client $443.86 HP VU901AT#ABA VU901AT Thin Client

Wyse R00L Thin Client 90954921L $532.21 Wyse R00L Thin Client 90954921L

Wyse R90LW Thin Client 90954311L $688.11 Wyse R90LW Thin Client 90954311L

Wyse R50L Thin Client 90954601L $477.55 Wyse R50L Thin Client 90954601L

Wyse R90L Thin Client 90954771L $698.01 Wyse R90L Thin Client 90954771L

Wyse R90LW Thin Client 90954351L $698.01 Wyse R90LW Thin Client 90954351L

Wyse C30LE Thin Client 90217201L $429.51 Wyse C30LE Thin Client 90217201L

Wyse R90L Thin Client 90954701L $551.3 Wyse R90L Thin Client 90954701L

Wyse V10L Thin Client 90216101L $501.76 Wyse V10L Thin Client 90216101L

HEWLETT PACKARD-THIN CLIENT T-5530 $91.99 HEWLETT PACKARD-THIN CLIENT T-5530

Wyse Technology R50L Thin Client $482.2 Wyse Technology 909546-41L R50L Thin Client

Wyse Technology V90L Thin Client $674.2 Wyse Technology 902158-15L V90L Thin Client

HP Compaq gt7725 Thin Client $699.79 HP NG815AA#ABA Compaq gt7725 Thin Client

Wyse Technology C90LE Thin Client $480.45 Wyse Technology 902166-01L C90LE Thin Client

Wyse Technology C90LEW Thin Client $581.88 Wyse Technology 902168-21L C90LEW Thin Client

Wyse Technology R90L Thin Client $526.34 Wyse Technology 909547-01L R90L Thin Client

Wyse Technology R90LW Thin Client $638.83 Wyse Technology 909543-51L R90LW Thin Client

Wyse Technology V10LE Thin Client $452.37 Wyse Technology 902178-91L V10LE Thin Client

Wyse Technology C50LE Thin Client $336.89 Wyse Technology 902171-01L C50LE Thin Client

Planar Systems Thin Client Bracket $147.22 Planar Systems 997-3185-00 Thin Client Bracket

Wyse Technology R00LE Thin Client $480.57 Wyse Technology 909530-01L R00LE Thin Client

Wyse Technology R90LE Thin Client $821.39 Wyse Technology 909535-71L R90LE Thin Client

Wyse Technology V10L Thin Client $457.05 Wyse Technology 902161-01L V10L Thin Client

Wyse Technology R00L Thin Client $487.03 Wyse Technology 909549-21L R00L Thin Client

Wyse Technology R90LEW Thin Client $629.5 Wyse Technology 909542-01L R90LEW Thin Client

Wyse Technology V30LE Thin Client $443.17 Wyse Technology 902179-31L V30LE Thin Client

Wyse Technology V50LE Thin Client $443.17 Wyse Technology 902181-61L V50LE Thin Client

Wyse Technology P20 Thin Client $485.31 Wyse Technology 909101-01L P20 Thin Client

Wyse Technology C30LE Thin Client $389.63 Wyse Technology 902172-01L C30LE Thin Client

Wyse Technology R50LE Thin Client $493.6 Wyse Technology 909524-21L R50LE Thin Client

Wyse Technology V90LEW Thin Client $529.47 Wyse Technology 902188-01L V90LEW Thin Client

Wyse Technology C10LE Thin Client $290.41 Wyse Technology 902175-01L C10LE Thin Client

Windows Nt/2000 Thin Client Solutions $27.37 Buy and sell [Windows Nt/2000 Thin Client Solutions] at great prices.

Wyse C10LE Thin Client $299.99 Type: Thin Client CPU Type: VIA 1GHz Installed Memory Size: 128MB Flash / 512MB RAM Ethernet Controller: 10/100/1000Mbps Gigabit Ethernet IEEE 802.3ab Operating System: Wyse Thin OS

R50L/R90L Thin Client Bracket $179.99 Designed to securely hold a R50L/R90L Wyse thin client using the 75 mm or 100 mm VESA mounting pattern on the back of the monitor.

HP / T5540 THIN CLIENT 1GHZ / VA213AA#ABA $415.52 HP - T5540 THIN CLIENT 1GHZ - VA213AA#ABA

NCOMPUTING / L130 ACCESS ULTRA THIN CLIENT / L130 $165.87 NCOMPUTING - L130 ACCESS ULTRA THIN CLIENT - L130

NCOMPUTING / X550 ULTRA THIN CLIENT 5-USER / X550 $408.56 NCOMPUTING - X550 ULTRA THIN CLIENT 5-USER - X550

Wyse Technology Winterm V90LE Thin Client $556.11 Wyse Technology 902184-01L Winterm V90LE Thin Client

Wyse Technology Winterm V30LE Thin Client $532.91 Wyse Technology 902142-51L Winterm V30LE Thin Client

Wyse Technology Winterm S30 Thin Client $336.65 Wyse Technology 902113-20L Winterm S30 Thin Client

Wyse Technology Winterm S10 Thin Client $233.4 Wyse Technology 902110-06L Winterm S10 Thin Client

Wyse Technology Winterm S50 Thin Client $272.56 Wyse Technology 902114-31L Winterm S50 Thin Client

HP t5540 Thin Client VA213AA#ABA $407.59 HP t5540 Thin Client VA213AA#ABA

HP t5540 Thin Client VA213AT#ABA $341.39 HP t5540 Thin Client VA213AT#ABA

HP t5630w Thin Client VC069AT#ABA $485.31 HP t5630w Thin Client VC069AT#ABA

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