351. A system has a word length of 4 bits. If inthis system negative numbers are represented by their 2's compliment, then the range of numbers that can be represented by the word length is
A. ?8 to +8
B. ?7 to +7
C.-16 to +16
D. none of the above

---

352. Which of the following is associated with optics?
A. Winchester disk
B. RSM
C. CD-ROM
D. None of the above

---

353. The number 7F00 in Hexadecimal when multiplied by 16 is
A. 7F16
B.167F00
C. 7F006
D. none of the above

---

354. The basic memory cell of dynamic RAM consists of
A. a capacitance
B. a transistor
C. a flip-floop
D. a transistor acting as a capacitor IIETE 19951

---

355. Which of the following use least power?
A. Tit
B.ECL
C. CMOS
D. All use same power

---

356. PROMs are used to store
A. bulk information
B. sequential information
C. information to be accessed rarely
D. relatively permanent information

---

357. Which one of the following is not a vectored interrupt?
A. TRAP
B. INTR
C. RST7.5
D.RST3

---