Solution: A network packet is a formatted unit of data carried by a packet-switched network. 

Solution: WAV (Waveform Audio File Format), WMA(Windows Media Audio), AIFF(Audio Interchange File Format) are examples of audio file format. 

Solution: A web crawler (also known as a web spider or web robot) is a program or automated script which browses the World Wide Web in a methodical, automated manner. This process is called Web crawling or spidering. 

Solution: A message board is an online discussion area in which users with similar interests discuss topics. These conversations or discussions are available in the form of posted messages. 

Solution: Laser printers use a dry ink powder in cartridge called toner. 

Solution: The Control Panel is a section of Microsoft Windows that enables a user to change various computer hardware and software features. Settings for the mouse, display, sound, network, and keyboard represent just a few examples of what may be modified in the Control Panel. 

Solution: Disk defragmenter is a Windows utility program that located and eliminates unnecessary fragments and rearranges filed and unused to disk space to optimise operations. 

Solution: This indicates either a possible spelling error or that Word doesn’t recognize a word, such as a proper name or place. Green underline- Word thinks that grammar should be revised. Blue underline- A word is spelled correctly but does not seem to be the correct word for the sentence. 

Solution: WordArt is decorative text that you can add to a document. You can make changes to WordArt, such as the font size and the text colour, by using the drawing tools options available automatically after you insert or select the WordArt in a document. 

Solution: A folder is a virtual location where programs, files, and other folders can be located. 

Solution: Except thoughtful all other operations are performed by general computers. 

Solution: A bridge is a network device used at the data link layer to connect two dissimilar networks as well as similar networks. 

Solution: Swapping concept comes in terms of process scheduling. Scheduler removes process from CPU for duration and reduces the degree of multiprogramming. And after some time these process can again be reintroduced into main memory. 

Solution: A hierarchical database model is a data model in which the data is organized into a tree-like structure. The hierarchical database model mandates that each child record has only one parent, whereas each parent record can have one or more child records. 

Solution: A Palmtop PC was an about pocket calculator-sized, battery-powered PC in a horizontal clamshell design with integrated keyboard and display. It could be used like a subnotebook, but was light enough to be comfortably used handheld as well. That is the reason they were also known as handheld devices. 

Solution: Clicking undo button in this context will not end bulleting. 

Solution: Phishing trips are attempts by individuals to obtain confidential information from you by falsifying their identity. 

Solution: DBMS acts as an interface between database application and the database. 

Solution: Subject define the content of the email message. 

Solution: Home key returns you to the beginning of the line, document, page, cell, or screen of where your cursor is positioned. 

Solution: Each box in a spreadsheet is called a cell. 

Solution: Delete key is used to delete data. 

Solution: The client/server network contains a centralized server that manages and controls all the other nodes of the network. It is expensive as it requires NOS and a specialized server system. It is highly secure and possesses good speed. However, it becomes congested when more clients simultaneously request for a service to the server. 

Solution: Composite key is formed when two or more fields of a database table are combined together in order to uniquely identify the records stored in the table.

Solution: X-NOR gate is a complement of the X-OR gate. The truth table of the X-NOR gate is the complement (opposite) to the X-OR gate. 

Solution: Swapping concept comes in terms of process scheduling. Scheduler removes process from CPU for duration and reduces the degree of multiprogramming. And after some time these process can again be reintroduced into main memory. 

Solution: ACID (Atomicity, Consistency, Isolation, and Durability) is a set of properties of database transactions. 

Solution: The CMOS is a physical part of the motherboard: it is a memory chip that houses setting configurations and is powered by the onboard battery. The CMOS is reset and loses all custom settings in case the battery runs out of energy, additionally, the system clock resets when the CMOS loses power.