MCQS

Computer Science

The correct answer is 'Central Processing Unit' because the memory unit is a component within the CPU that stores data temporarily for processing. It is responsible for holding instructions and data that the CPU needs to access quickly. Therefore, the memory unit is an integral part of the Central Processing Unit.

The correct answer is 'CtrlShift3' because this key combination is specifically used to format numbers in Excel as dates. By pressing CtrlShift3, the selected cell or range of cells will be formatted as a date, allowing users to easily convert numerical data into a date format. This key combination is a quick and efficient way to ensure that data is displayed correctly in date format in Excel.

The correct answer is 'D. Digital computer' because digital computers operate by processing data in discrete binary digits, or bits, which are essentially counting units. These computers use binary code to represent and manipulate information, allowing them to perform calculations and execute instructions through counting operations. This distinguishes digital computers from analog computers, which operate using continuous physical quantities.

The correct answer is 'D. scanner' because a scanner is a device used to create digital copies of physical documents or images, not a storage medium. Storage mediums are devices or technologies used to store and retrieve data, such as hard drives, USB drives, and CDs. Scanners do not store data themselves but instead capture and convert physical information into digital format for storage on a storage medium.

The correct answer is 'Extended Binary Coded Decimal Interchange Code' because EBCDIC is a character encoding scheme developed by IBM that uses an 8-bit binary code to represent characters. The term 'Extended' signifies that it is an extended version of the original BCDIC (Binary Coded Decimal Interchange Code) which was a 6-bit code. This makes 'Extended Binary Coded Decimal Interchange Code' the most accurate and specific description of what EBCDIC stands for.

The correct answer is 'James Gosling' because he is widely recognized as the creator of the Java programming language. Gosling developed Java while working at Sun Microsystems in the early 1990s, and the language was officially released in 1995. His contributions to the development of Java have been well-documented and acknowledged within the technology industry.

The correct answer is 'CMOS chip' because the BIOS settings are typically stored in a small amount of non-volatile memory on the motherboard known as the CMOS chip. This chip retains the settings even when the computer is turned off, allowing the BIOS to access and utilize them each time the computer is powered on.

The correct answer is 'CtrlShift4' because this key combination is specifically used in Excel to format numbers in scientific format. Pressing CtrlShift4 will change the selected cell or range of cells to scientific notation, making it easier to work with very large or very small numbers in Excel. This key combination is a quick and efficient way to format numbers in scientific notation without having to manually adjust the formatting settings.

The correct answer is 'D. Douglas Engellbert' because he is the inventor of the computer mouse. Engellbert developed the first prototype of the mouse in the 1960s while working at the Stanford Research Institute. This makes him the most relevant and accurate choice for the question.

The correct answer is 'D. Seventh Generation' because it is the most recent generation of computers that is currently still being developed. The seventh generation of computers is characterized by advancements in artificial intelligence, quantum computing, and other cutting-edge technologies, making it the generation that is currently at the forefront of technological innovation.