| 41. A complete microcomputer system consists of |
| microprocessor |
| memory |
| peripheral equipment |
| all of above |
| 42. Which of the following code is used in present day computing was developed by IBM corporation? |
| ASCII |
| Hollerith Code |
| Baudot code |
| EBCDIC code |
| 43. All of the following are divisions of the COBOL program except: |
| input-output |
| indentification |
| procedure |
| data |
| 44. Which command be used to clear the screen and display the operating system prompt on the first line of the display? |
| Cd |
| Md |
| Rename |
| cls |
| 45. Avalanche photodiode receivers can detect bits of transmitted data by receiving |
| 100 photons |
| 200 photons |
| 2000 photons |
| 300 photons |
| 46. MS-DOS developed in |
| 1991 |
| 1984 |
| 1971 |
| 1961 |
| 47. The synchronous modems are more costly than the asynchronous modems because |
| they produce large volume of data |
| they contain clock recovery circuits |
| they transmit the data with stop and start bits |
| they operate with a larger bandwidth |
| 48. Which command is used to make a new directory? |
| Md |
| Cd |
| Rd |
| None of above |
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