Explain any five of the following with the help of diagrams and examples as appropriate :

Right here are causes for 5 of the topics:

(a) Unicode:

Unicode is a character encoding gadget this is designed to represent all the characters used within the global’s writing systems. It uses a completely unique code factor for every individual, which permits computer systems to correctly show and method textual content in a couple of languages. For example, the Unicode code point for the letter “A” is U+0041.

(b) Arrays:

An array is a information shape that stores a group of elements of the same statistics type in a contiguous block of memory. Each element inside the array is recognized via its index, which starts offevolved at 0. Arrays are used to shop and manipulate huge sets of statistics in packages. For example, an array of integers may keep the grades of a category of students.

(c) Simplex, Half Duplex and Full Duplex Communication:

Simplex conversation is a one-way conversation machine in which facts flows in best one course. Half duplex verbal exchange is a two-manner communication system in which data flows in both instructions, however handiest one path at a time. Full duplex communique is a two-way conversation machine wherein information flows in both directions concurrently. Examples of simplex conversation encompass radio and tv announces, at the same time as examples of full duplex communication encompass phone conversations.

(d) Firewall:

A firewall is a network protection device that video display units and controls incoming and outgoing community visitors based totally on a set of predetermined security guidelines. Firewalls are used to save you unauthorized access to a network, in addition to to save you the unfold of malware and different security threats. For example, a organization would possibly use a firewall to save you hackers from having access to its inner community.

(e) Laser Printer:

A laser printer is a type of printer that uses a laser beam to provide brilliant textual content and photos on paper. The laser beam scans backward and forward across a photosensitive drum, which attracts toner to the regions wherein the laser hits. The toner is then transferred to the paper and fused to the paper the use of warmness. Laser printers are acknowledged for his or her excessive velocity and print exceptional.