Computer Science - Computer Fundamentals
Exercise :: Computer Fundamentals - Section 6
| 1. |
When an input electrical signal A=10100 is applied to a NOT gate, its output signal is |
| A. |
01011 | | B. |
10001 | | C. |
10101 | | D. |
00101 | | E. |
None of the above |
Answer: Option A
Explanation:
|
| 2. |
The first practical commercial typewriter was invented in 1867 in the United States by |
| A. |
Christopher Latham Sholes | | B. |
Carlos Glidden | | C. |
Samuel Soule | | D. |
All of the above | | E. |
None of the above |
Answer: Option D
Explanation:
|
| 3. |
What is meant by quad-density (QD) diskette? |
| A. |
It is double-sided disk | | B. |
It is double density disk | | C. |
It has double the number of tracks per inch | | D. |
All of the above | | E. |
None of the above |
Answer: Option D
Explanation:
|
| 4. |
Large computer system typically uses: |
| A. |
Line printers | | B. |
Ink-jet printers | | C. |
Dot-matrix printers | | D. |
Daisy wheel printers | | E. |
None of the above |
Answer: Option A
Explanation:
|
| 5. |
First generation computers are characterised by |
| A. |
Vaccum tubes and magnetic drum | | B. |
Minicomputers | | C. |
Magnetic tape and transistors | | D. |
All of the above | | E. |
None of the above |
Answer: Option A
Explanation:
|
