46. Which of the following Operating Systems does not implement multitasking truly?
    

1. 1. Windows 98

   
   
   

   2. Windows NT

   
   
   

   3. Window XP

   
   
   

   4. MS-DOS

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

47. What is the full form of UNIVAC:

1. 1. Universal Automatic Computer

   
   
   

   2. United Visual Automatic Computer

   
   
   

   3. Universal Network Interlinking Visual Automatic Connector

   
   
   

   4. None of the above
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

---

48. What is the full form of EDSAC (1947–1949)?

1. 1. Electronic Display System in Automatic Calculator

   
   
   

   2. Electronic Digital System of Automatic Computing

   
   
   

   3. Electronic Delay Storage Automatic Calculator

   
   
   

   4. None of the above
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

49. What is the full form of ENIAC (1943–1946)?
    

1. 1. Electronic New Information aided calculator

   
   
   

   2. Electronic Numerical Integrator And Calculator

   
   
   

   3. Electronic Network Information Aided computer

   
   
   

   4. None of the above

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

---

50. The first mechanical adding machine was invented in 1642 by ……

1. 1. Blaise Pascal

   
   
   

   2. Charles Babbage

   
   
   

   3. Baron Gottfied

   
   
   

   4. None of the above
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---