3.10 SPEAKER

 Computer speakers, or multimedia speakers, are external speakers, commonly equipped with a lowpower internal amplifier. A plug and socket for of the external speakers are used to connect it with computer system.


Computer speakers range widely in quality and in price. Laptops computers have inbuilt speakers with them.

Comments

Post a Comment

Popular posts from this blog

3.5 SECURITY ISSUES FOR SMALL AND MEDIUM SIZED BUSINESSES

 Small and medium sized businesses use the Internet and networked applications to reach new customers and serve their existing ones more effectively. At the same time, new security threats and legislation puts increased pressure on business networks to be reliable and secure. Business Challenges According to recent studies, security is the biggest challenge facing small and mediumsized businesses. Everchanging security threats from both inside and outside the business network can wreak havoc on business operations, affecting profitability and customer satisfaction. Small and mediumsized businesses must also comply with new regulations and laws created to protect consumer privacy and secure electronic information. Security issues for small and medium – sized businesses are classified into 5 basic categories: Worms and Viruses As per research, Computer worms and viruses remain the most common security threat, with 75 percent of small and medium businesses affected by it.. Worms and v...
Read more

3.8 SECURE NETWORK DEVICES

 In this unit, we have already learnt that the firewall is only one entry point to your network. Modems, if you allow them to answer incoming calls, can provide an easy means for an attacker to sneak around, your front door (or, firewall). Just as castlesweren't built with moats only in the front, your network needs to be protected at all of its entry points. Secure Modems, DialBack Systems If modem access is to be provided, this should be guarded carefully. The terminal server, or network device that provides dialup access to your network needs to be actively administered, and its logs need to be examined for strange behavior. Its passwords need to be strong not ones that can be guessed. Accounts that aren't actively used should be disabled. In short, it's the easiest way to get into your network from remote: guard it carefully. There are some remote access systems which have the feature of a twopart procedure to establish a connection. The first part is the remote user di...
Read more

3.9 SIGNIFICANCE OF NETWORK LAYOUT IN NETWORK SECURITY

Image
 The network layout has much influence over the security of the network. The placement of servers with respect to the firewall and various other computers can affect both network performance and security. There may even be areas of the network which are more secure than others. Some of these areas may be further protected with an additional firewall. A typical secure network diagram is shown below in Figure 3.3: In the above diagram, the box labeled "IDS" is an intrusion detection system which may be a computer or devised designed to log network activity and detect any suspicious activity. In this diagram, it is shown outside the firewall on the semiprivate network and protecting the servers on the private network. It may be a good idea to place IDS just inside the firewall to protect the entire private network since an attack may be first launched against a workstation before being launched against a server. The IDS protecting the servers could be moved to protect the entire...
Read more