It does not belong to the generation of computers, intead it is a secondary storage device.

It modifies the size of previously allocated space.

It is a derived data type.

This is the correct answer.  1's complement of (10001)₂ is 01110  2's complement of (01110)₂ is 01110 + 1 = 01111

This answer is correct because it does not belong to the classification of plotters.

This is the correct answer. Since 1 byte = 8 bits, so 4 bytes = 4 x 8, which is 32 bits.

ALU is the part of CPU. ALU performs arithmetical or logical operations on the processed data.

It is the ASCII value of z.

It always returns 0 or 1according to the condition.

No, it is multi-user capability, which allows more than one user to access different resources of the computer at the same time.

It does not belong to the layer of Unix operating system. An application software is not necessary to run our computer. It is used for extra features like image editing etc.

Yes, it includes high-level interfaces for database access and active dictionary services.

It is used to free previously allocated space.

 (2AB)₁₀=(B*16⁰)+(A*16¹)+(2*16²)            =(11*16⁰)+(10*16¹)+(2*16²)            =(11*1)+(10*16)+(2*256)            =11+160+512=683            =(683)₁₀

RAM is also called the primary memory of a computer that is used to store information and programs until the computer is used.