बिजली गुल होने (पावर आउटेज) की स्थिति में बैकअप पावर प्रदान करने और डेटा हानि को रोकने के लिए मुख्य रूप से निम्नलिखित में से किस उपकरण का उपयोग किया जाता है?

For a computer to produce sound, such as music or system alerts, a _____________ device is required.

Which of the following is NOT a standard keyboard layout?

Match the following CPU components with their descriptions: (a) Arithmetic and Logic Unit (ALU) (b) Control Unit (CU) (c) Memory Unit (i) This unit temporarily stores data, programs, and intermediate and final results of processing. (ii) This unit performs functions such as addition, subtraction, multiplication, division, and comparisons. (iii) This unit controls and coordinates the functioning of all parts of the computer.