Challenge your understanding of core IT concepts with these easy general knowledge questions on technology. Perfect for brushing up on everyday tech facts, hardware, software, and internet terminology.
What is the full form of SMS often used for sending text messages on a mobile phone?
Explanation: Short Message Service is the correct full form of SMS, referring to the technology that allows short text communication between mobile devices. Simple Mail Service is incorrect and is more related to emails, not texts. Secure Messaging System and Standard Messaging Setup sound plausible but are not standard terminology for SMS. Only 'Short Message Service' is accepted internationally.
Which key on a standard computer keyboard is commonly used to refresh or reload a web page?
Explanation: F5 is the standard key for refreshing or reloading a web page in most internet browsers. F2 is usually used for renaming files, while F9 often refreshes data in spreadsheets but not web pages. Ctrl on its own does not refresh pages, though in combination with other keys it performs certain shortcuts.
PDF is a popular file format for documents; what does PDF stand for?
Explanation: PDF stands for Portable Document Format, a widely used format for sharing documents while preserving their layout. Public Download File and Protected Data File may sound plausible but are not correct. Personal Data Form is also unrelated to the actual use of PDF files.
What is the primary function of a computer mouse when used with a desktop computer?
Explanation: A mouse is used to move the cursor and select or interact with items on the screen. Printing documents is done via printers, storing data is a function of storage devices, and connecting to the internet involves network hardware. The mouse’s main job is navigation and selection.
In computers, what does the abbreviation CPU stand for?
Explanation: CPU stands for Central Processing Unit, known as the brain of the computer responsible for computations and tasks. Computer Personal Utility and Central Program Unit are incorrect rewordings. Control Primary Unit, although similar-sounding, is not an established term in computing.
RAM is essential in computers; what is its main function?
Explanation: RAM, or Random Access Memory, temporarily stores data and programs while they are being used, allowing for fast access. It does not permanently save files—that is the job of storage devices like hard drives. Providing internet connectivity is handled by network hardware, and controlling monitors is not RAM's function.
What is the main purpose of antivirus software on a computer?
Explanation: Antivirus software protects computers by detecting and removing viruses and other harmful programs. Increasing printing speed and enhancing screen resolution are handled by other software and hardware. Installing operating systems is not the function of antivirus software.
Which function does the 'Enter' key perform on a keyboard, such as when writing an email?
Explanation: The Enter key is used to begin a new line or execute commands, such as sending a message or submitting a form. The Delete key removes characters, switching tabs is usually done with tab or control keys, and the power button is used to turn off the computer.
What does 'URL' stand for, a term often seen in web browsers?
Explanation: URL stands for Uniform Resource Locator, which is the address used to access resources on the internet. United Routing Line and Universal Remote Link are incorrect interpretations. User Ready Layout is unrelated to web addressing.
In networking, what is the main role of a firewall for computers or networks?
Explanation: A firewall serves to block unauthorized access while allowing safe and permitted communication, thus protecting the computer or network. Automatic backups, graphics performance, and storage drive expansion are not functions of a firewall. Its core job is network security management.