Technology & Computer Awareness Important Points All Exams

1. American Institute of Electrical Engineers (AIEE) founded? - 1880s
2. “OS” stands for- Operating System
3. the first transatlantic radio broadcast occur? – 1900s
4. '.MOV' extension refers usually to what kind of file? – Animation/movie file
5. Which is a type of Electrically-Erasable Programmable Read-Only Memory? – Flash
6. The purpose of choke in tube light is ? - To increase the voltage momentarily
7. '.MPG' extension refers usually to what kind of file? - Animation/movie file
8. Who developed Yahoo? - David Filo & Jerry Yang
9. VHS stands for...? - Video Home System
10. VVVF stand for? - Variable Voltage Variable Frequency
11. What frequency range is the High Frequency band? - 3 to 30 MHz
12. The first step to getting output from a laser is to excite an active medium. What is this process called? – Pumping
13. What is the relationship between resistivity r and conductivity s? - R = 1/s
14. Which motor is NOT suitable for use as a DC machine? - Squirrel cage motor
15. What does the term PLC stand for? - Programmable Logic Controller
16. ‘DB' computer abbreviation usually means ? – Database
17. '.INI' extension refers usually to what kind of file? - Systemfile
18. The sampling rate, (how many samples per second are stored) for a CD is...? 44.1 kHz
19. Who created Pretty Good Privacy (PGP)? Phil Zimmermann
20. What do we call a network whose elements may be separated by some distance? It usually involves two or more small networks and dedicated high-speed telephone lines.?  WAN
21. WAN stands for? – Wide Area Network
22. Who co-founded Hotmail in 1996 and then sold the company to Microsoft? Sabeer Bhatia
23. '.TMP' extension refers usually to what kind of file? Temporary File
24. In the United States the television broadcast standard is...? NTSC
25. '.JPG' extension refers usually to what kind of file? Image File
26. What does AM mean? Amplitude modulation
27. what year was the "@" chosen for its use in e-mail addresses? 1972
28. ‘.TXT’ extension refers usually to what kind of file? Text File
29. What was the first ARPANET message? “lo”
30. "FET" is a type of transistor, Its full name is ________ Effect Transistor...? Field
31. 'DTP' computer abbreviation usually means ? Desktop Publishing
32. 'CD' computer abbreviation usually means ? Compact Disc
33. '.BAK' extension refers usually to what kind of file? Backup file
34. Where is the headquarters of Intel located? Santa Clara, California
35. Who co-created the UNIX operating system in 1969 with Dennis Ritchie? Ken Thompson
36. Voltage is sometimes referred to as EMF, or Electromotive...? Force
37. AM means? Amplitude modulation
38. '.BAT' extension refers usually to what kind of file? Systemfile
39. What does EPROM stand for? Erasable Programmable Read Only Memory
40. What was the active medium used in the first working laser ever constructed? A ruby rod

Computer Awareness: Also Read: