Author Archives: Manicolddrinks
Antivirus
The program or a set of programs that are built to prevent, detect, search and remove software viruses like worms, Adwares, Trojans are known as anti-virus software. All anti-virus perform basic functions 1.Scan computer 2 Enables user to make schedule scan 3 Allow user to scan specific files 4 Allow to scan removable storage devicesContinue reading “Antivirus”
Hacker
Hacker is a person who breaks in, by gaining an unauthorized access to others computer without their permission. They steal personal data, can cahnge or destroy information, gaining fame, stealing mony and making network unavailable by installing dangerous malwares. Hackers can be classified as black hat hacker, white hat hackers and grey hat hacker, byContinue reading “Hacker”
Worms
A computer worms is a special type of computer virus that spread malicious codes. This program can spread without human will. A virus requires some human action in order to infect a computer, but a worm can spread with any human interaction. Worms can spread in multiple ways. . Removable media . Internet downloads .Continue reading “Worms”
Adware
It is also called advertising supported software, which make money for their owners. This is done by automatically creating online advertising in the user interface. Generally there are two types of revenue that are generated by these software : pay per click and other is for display of advertisement. There are two ways Adware canContinue reading “Adware”
(GPS) Global Positioning System.
The network of orbiting and global navigation satellites that send send their information back to earth are called Global Positioning System. GPS receives the singnal, navigation device used to show the exact location and speed. GPS supports various applications such as airlines, shipping companies, path and also tracking of assets.
Types of Physical Transmission Media
The physical path through which the data or information travels between sources is called transmission media. We can say that transmission media act as a carrier between sender and receiver in order to send data. The base of transmission media is cabelling mechanism. It is also called guided media. Wired transmission media is of threeContinue reading “Types of Physical Transmission Media”
Types of computer networks
Three types of computer networks. 1.Local Area Network,. 2 Metropolitan Area Network. 2.Wide Area Network. 1.Local Area Network.(LAN) A local area network is privately owned and links the devices in a single, office or building. Its design allow the hardware and software resources such as printer and application program to be shared between workstations. TheContinue reading “Types of computer networks”
Components of Computer networks.
There are five basic components for computer network 1.Sending devices. Any device that is capable of sending information or instructions 2.Receving devices. Any device that is capable of receiving information or instructions 3 Communication devices. Any hardware device that is used for transmission of instructions, data or information between sending and receiving devices are knownContinue reading “Components of Computer networks.”
Computer Networks.
A computer network is the combination of various computing devices that are connected together by communication links for the purpose of sharing information. These devices are generally called node. A node can be any device capable of sending and receiving data such as laptop, mobile phones, router, switches and desktop systems etc. We can sayContinue reading “Computer Networks.”
New Technologies 