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Consider the following statements: 1. RAM is a non-volatile memory whereas ROM is a volatile memory 2. RAM is a volatile memory whereas ROM is a non-volatile memory 3. Both RAM and ROM are volatile memories but in ROM data is not when power is switched off Which of the above statements are correct?
If X stands for addition, V stands for substraction, U stands for 'equal to',  ∧ stands for division, ∑ stands for multiplication, O stands for greater than and σ stands for less than. State which expression is true?
If "x" stands for addition, "<" stands for subtraction, " + " stands for division, ">" stands for multiplication, " – " stands for equals to, "÷" stands for greater than and " = " stands for less than, which of the following holds true?
If '+' stands for '÷', '­' stands for '=', 'x' stands for '+', '÷'stands for greater than, '=' stands for less than, '>' stands for multiplication and '<' stands forsubtraction, then which of the following alternatives is correct?
If "x" stands for addition, "<" stands for subtraction, "+" stands for division, ">" stands for multiplication, "–" stands for equals to, "÷" stands for greaterthan and "=" stands for less than, which of the following holds true?
Based on the paragraph given below answer the following question: The traditional methods of combinational circuits involve simplification and realization using gates. Using these methods, complex functions have been integrated and are easily available in IC form. There is an attractive array of devices like a multiplexer, demultiplexer, decoders, comparators, parity generators/checkers, which significantly reduce IC package count there by reducing the system cost. The system design is greatly simplified because the laborious and time-consuming simplification methods are generally not required with these devices. This also improves the reliability of the system by reducing the number of external wired connections. But they have some limitations as well. Different memories like ROM, PROM can also be used to implement combinational circuits without much simplification.   A ROM is to be used to implement a “Squarer”, which outputs the square of a 3-bit number. What must be the size of the ROM?
Consider the following statements regarding PROM/EPROM: 1. The erasable programmable ROM using ultraviolet erasing is known as EPROM. 2. The ROM that makes use of the electrical voltage for erasing is known as electrically alterable ROM. 3. A PROM can be programmed many times after fabrication. Which of the above statements are correct?
Six persons A, B, C, D, E, and F stand in a queue from top to bottom and live in different cities. Topmost position is number 1 and bottom most is number 6. D lives in Delhi and stands immediately below the person who lives in Haryana. C lives in Kolkata and at the 4th place. E stands two places after C. Person who lives in Chennai stands between the persons who live in Kolkata and Delhi. B lives in Goa and stands three places after D. Person who lives in Mumbai stands three places after A. What is the position of the person who lives in Chennai from the top?
If ‘→’ stands for ‘+’, ‘←’ stands for ‘−’, ‘↑’ stands for ‘÷’, ‘↓’ stands for ‘×’, ‘↗’ stands for ‘=’, which one, of the following statements is correct?
If ‘←’ stands for ‘+’, ‘→’ stands for ‘-‘, ‘↑’ stands for ‘÷’, ‘↓’, stands for ‘x’, ‘^’ stands for ‘=’, then which of the following alternatives is correct? A. 3 ↓ 6 ↑ 2 ← 3 → 6 ^ 5 B. 2 ↓ 5 → 6 ← 2 ^ 6 C. 7 → 43 ↑ 6 ↓ 1 ^ 4 D. 5 ← 7 → 3 ↑ 2 ^ 4