Network Servers

2. Types of Server

The vast majority of network servers are high-performance PCs, designed and built specifically to be used as servers.

Some businesses use Apple servers. These companies usually use Apple computers heavily in their work. Other types of highly-specialist servers are available, though you are unlikely to use them.

2.1 There are clear reasons PC servers dominate the market.

• Hardware is standard, so you can purchase your servers, components and add-ons from many different suppliers.
• These servers can run the most popular network software (see 4).
• PC-based servers work well with most business software, which is written for the PC.

2.2 If your business only uses Apples, it may be simpler to use a Macintosh network server.

• Although much easier these days, it may still be more difficult to connect PCs and other compatible devices.

2.3 'Thin client' systems are becoming more common.

• With a thin client system, the PCs in your business are replaced by cut down terminals connected to the server.
• All data processing is done on the server, and all data is stored centrally.
• Thin clients are very secure, because data cannot be copied to individual terminals.
• However, in order to use a thin client system you must replace existing PCs with new terminals. The cost and loss of flexibility means most businesses are better off with a traditional PCs and server set-up.

2.4 There are some general rules to consider when purchasing a new server:

• Your server will be the most important piece of hardware in your business, so do not cut corners. Pick the best server you can afford.
• Always look at the complete package, including warranties, support and expandability.
• Remember to budget for extras. For example, you will almost certainly want uninterruptible power (see 3.4) and a backup facility (see 5).
• Setting up a server is a complex task.If you do not have the expertise in your business, get help.