Computer Science Test 2 Nddc Scholarship

This distinction is fundamental to computer science. System software, like the operating system, manages the computer's internal functions and hardware communication. Application software, such as web browsers or word processors, sits on top of the system software and allows the end-user to perform productive or creative work.

Because modern keyboards are mass-produced using inexpensive membrane or mechanical components, the labor cost involved in a professional repair usually exceeds the price of a brand-new replacement. Most IT departments advise replacing a keyboard if it suffers from electrical failure or liquid damage due to the low cost and reliability of new units.

The Control Panel is a centralized management tool in Windows that allows users to view and manipulate system settings. It provides icons and menus for managing user accounts, installing or removing hardware, configuring network settings, and adjusting the appearance of the desktop, all without requiring the user to type complex text commands.

A tracker ball (or trackball) remains stationary on the desk. Instead of moving the entire device, the user rolls a ball with their thumb or fingers to move the cursor. This makes it ideal for cramped workspaces or specialized industrial environments where a mouse's requirement for a clear surface area is not practical.

Windows 98 is a classic example of a menu-driven, graphical operating system. Users navigate the system by clicking the 'Start' menu, selecting programs from lists, and using drop-down menus within windows. This is contrasted with command-line systems like MS-DOS, where every action must be typed as a specific text statement.

While word processing software is designed for writing and simple formatting of text, Desktop Publishing software is built for high-end page layout. DTP programs provide much more advanced control over the placement of images, complex typography, and prepress settings, making them the standard tool for professional magazine and book design.

A computer is scientifically defined by the Input-Process-Output (IPO) cycle. It takes raw data from the user, manipulates that data according to a specific set of instructions (a program), stores the results if necessary, and finally presents the processed data as useful information to the user.

A computer mouse is a pointing device designed to navigate a graphical interface. While it is excellent for selecting, dragging, and even drawing, it cannot be used for 'typing' in the traditional sense, which requires an alphanumeric keyboard. Reading is a cognitive human activity, though the mouse helps by scrolling through the text being read.

In a Graphical User Interface (GUI), a 'window' is the fundamental rectangular container for a program or file. Windows allow users to view multiple applications simultaneously on the desktop. They can typically be resized, moved, minimized, or closed, providing a flexible workspace for managing different digital tasks at once.

By default, Windows reserves a small portion of each drive's storage capacity to hold deleted files. Users can right-click the Recycle Bin and select 'Properties' to manually increase or decrease the maximum size of this storage area. If the bin reaches this limit, it will automatically delete the oldest files to make room for new ones.