Computer Fundamental All Computer Subject

Among the options provided, the input device of a computer is the Scanner. It is used to convert physical documents or images into digital format, which can then be processed by the computer.

Transistors belong to the second generation of computers. The second generation, which emerged in the late 1950s and lasted throughout the 1960s, was characterized by the use of transistors instead of vacuum tubes. These transistors were smaller, more reliable, and generated less heat than vacuum tubes, leading to significant improvements in computer size, speed, and reliability.

A trackball is an input device. It is used to move a cursor or pointer on a computer screen by rolling a ball with fingers or the palm of the hand.

The type of computers used to control air traffic and radar for national defense is Digital computers. These computers are specifically designed to process and analyze digital data, making them suitable for applications requiring precise calculations, data processing, and real-time monitoring, such as air traffic control and defense systems.

A standard PC keyboard typically contains 12 function keys, labeled F1 through F12, arranged in a row at the top of the keyboard.

A computer on the Internet that uses the HTTP protocol is known as a Web Server.

Third generation computers used integrated circuits. These integrated circuits, also known as microchips or ICs, replaced the discrete transistors used in second-generation computers, leading to smaller, faster, and more reliable computers.

The shortcut key for central alignment of a line or text in MS Office software is Ctrl+E

The central server in a computer network that allows users to utilize the storage capacity of the server is called a File Server.

Among the options provided, desktop computers are not typically considered portable devices. They are larger and less convenient to move compared to laptops, thumb drives, and iPods.