Computer Science

Microsoft was founded by Bill Gates and Paul Allen in 1975. The other options list founders of different major tech companies: Steve Jobs and Steve Wozniak founded Apple; Larry Page and Sergey Brin founded Google; Jeff Bezos founded Amazon and Elon Musk founded several companies including Tesla and SpaceX.

An element of an array is referred to by its position or index within the array, which is considered a member of the array. The name of the array refers to the entire array, not a single element, and values assigned are the contents, not the reference method. Therefore, the correct way to mention an element is by referring to a member (element) of the array, typically accessed by its index.

The Fourth Industrial Revolution (4IR) primarily refers to the integration of cyber-physical systems, including the Internet of Things (IoT), which connects devices and systems to enable smart automation. While the internet and communication technologies are components, 4IR specifically emphasizes IoT and related technologies.

IBM invented the first hard disk drive in 1956, known as the IBM 350 Disk Storage Unit, making IBM the correct answer.

IBM is famously nicknamed 'Big Blue' due to its long-standing use of blue in its logo and branding, making option C the correct answer.

Apple Inc. is widely recognized as one of the largest hardware companies globally, known for its extensive range of consumer electronics including iPhones, iPads, and Mac computers. Microsoft is primarily a software company, Dell is a major hardware company but smaller in market value compared to Apple, and My Space is unrelated to hardware.

All internal devices and components of a computer, including the CPU, memory, and expansion cards, are connected to the motherboard, which serves as the main circuit board.

Bill Hewlett and David Packard co-founded Hewlett-Packard (HP) in 1939, making option C the correct answer. The other options list founders of different technology companies.

The Control Unit (CU) of the CPU is responsible for controlling the sequence of instructions by directing the operation of the processor. It manages the execution of instructions by coordinating with other parts of the CPU.

The execution of instructions in a computer is primarily managed by the Control Unit (CU). The Control Unit fetches instructions from memory, decodes them, and orchestrates the execution by directing the flow of data and control signals to other parts of the CPU. The Arithmetic Logic Unit (ALU) performs the actual arithmetic and logical operations as directed by the Control Unit, but it does not manage the overall execution process. Therefore, the Control Unit is responsible for the execution of instructions in the CPU.