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4 Things Students Should Do During The ASUU Strike
~2.1 mins read
The academic staff union of universities (Asuu) has added another 12 weeks to their ongoing warning strike due to the federal government's refusal to meet their needs. The strike would undoubtedly have an impact on the enormous number of university students in Nigeria;
It is certain that the strike would have an impact on students' lives both positively and negatively. If you happened to read this article and you're one of the students affected by the strike, I congratulate you because in this article I will explain four things students should do during the Asuu strike; be sure to read this article all the way to the end to learn about the four. things
As I previously stated, this article will go through 4 Things Students Should Do During the ASUU Strike.
The 4 Things Students Should Do During the ASUU Strike are listed below.
1.Start your career
The strike has no set end date; it could be long or short; in 2020, the Asuu strike lasted for nine months; imagine how far students could have advanced if they had begun their careers during the strike. I advise students who have the opportunity to read this essay to begin their ambitious career choice immediately since no one knows how long the strike will persist and you will regret not starting your career choice during this Asuu strike. If you want to be a musician, start looking for studios and producing songs right now.
2.Learn a skill
Most students want to learn a skill after school or when they go to service, but the strike may provide an opportunity for those students who intend to learn a skill to begin learning it till the strike will be call off.
3.Get a Job
It is recommended for students, especially those who are suffering to pay their school fees, to get a job during the strike so that you can pay and settle your debts; even if the job is dirty, get a job, and make sure that you are not just sitting at home
4. Assist your parents
There's no doubt that your parents are doing something to meet your needs; for example, if your mother owns a shop, make sure you help her keep an eye on her market. You may also learn one or two things that will be valuable to you in the future.
In conclusion The ASUU strike might be a good or bad time for you, depending on how you use it.
The ASUU strike is an opportunity for you to be productive as a student.
The point listed above are things you can start doing for yourself during the ASUU strike.
Visit www.tifehblog.blogspot.com to read more
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Basic Logic
~7.1 mins read
Basic logic gates
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR.
The AND gate is so named because, if 0 is called "false" and 1 is called "true," the gate acts in the same way as the logical "and" operator. The following illustration and table show the circuit symbol and logic combinations for an AND gate. (In the symbol, the input terminals are at left and the output terminal is at right.) The output is "true" when both inputs are "true." Otherwise, the output is "false." In other words, the output is 1 only when both inputs one AND two are 1.
AND gate
| Input 1 | Input 2 | Output |
| 1 | ||
| 1 | ||
| 1 | 1 | 1 |
The OR gate gets its name from the fact that it behaves after the fashion of the logical inclusive "or." The output is "true" if either or both of the inputs are "true." If both inputs are "false," then the output is "false." In other words, for the output to be 1, at least input one OR two must be 1.
OR gate
| Input 1 | Input 2 | Output |
| 1 | 1 | |
| 1 | 1 | |
| 1 | 1 | 1 |
The XOR ( exclusive-OR ) gate acts in the same way as the logical "either/or." The output is "true" if either, but not both, of the inputs are "true." The output is "false" if both inputs are "false" or if both inputs are "true." Another way of looking at this circuit is to observe that the output is 1 if the inputs are different, but 0 if the inputs are the same.
XOR gate
| Input 1 | Input 2 | Output |
| 1 | 1 | |
| 1 | 1 | |
| 1 | 1 |
A logical inverter, sometimes called a NOT gate to differentiate it from other types of electronic inverter devices, has only one input. It reverses the logic state. If the input is 1, then the output is 0. If the input is 0, then the output is 1.
| Input | Output |
| 1 | |
| 1 |
The NAND gate operates as an AND gate followed by a NOT gate. It acts in the manner of the logical operation "and" followed by negation. The output is "false" if both inputs are "true." Otherwise, the output is "true."
NAND gate
| Input 1 | Input 2 | Output |
| 1 | ||
| 1 | 1 | |
| 1 | 1 | |
| 1 | 1 |
The NOR gate is a combination OR gate followed by an inverter. Its output is "true" if both inputs are "false." Otherwise, the output is "false."
NOR gate
| Input 1 | Input 2 | Output |
| 1 | ||
| 1 | ||
| 1 | ||
| 1 | 1 |
The XNOR (exclusive-NOR) gate is a combination XOR gate followed by an inverter. Its output is "true" if the inputs are the same, and "false" if the inputs are different.
XNOR gate
| Input 1 | Input 2 | Output |
| 1 | ||
| 1 | ||
| 1 | ||
| 1 | 1 | 1 |
Complex operations can be performed using combinations of these logic gates. In theory, there is no limit to the number of gates that can be arrayed together in a single device. But in practice, there is a limit to the number of gates that can be packed into a given physical space. Arrays of logic gates are found in digital ICs. As IC technology advances, the required physical volume for each individual logic gate decreases and digital devices of the same or smaller size become capable of performing ever-more-complicated operations at ever-increasing speeds.
Composition of logic gates
High or low binary conditions are represented by different voltage levels. The logic state of a terminal can, and generally does, often change as the circuit processes data. In most logic gates, the low state is approximately zero volts (0 V), while the high state is approximately five volts positive (+5 V).
Logic gates can be made of resistors and transistors or diodes. A resistor can commonly be used as a pull-up or pull-down resistor. Pull-up and pull-down resistors are used when there are any unused logic gate inputs to connect to a logic level 1 or 0. This prevents any false switching of the gate. Pull-up resistors are connected to Vcc (+5V), and pull-down resistors are connected to ground (0 V).
Commonly used logic gates are TTL and CMOS. TTL, or Transistor-Transistor Logic, ICs will use NPN and PNP type Bipolar Junction Transistors. CMOS, or Complementary Metal-Oxide-Silicon, ICs are constructed from MOSFET or JFET type Field Effect Transistors. TTL IC's may commonly be labeled as the 7400 series of chips, while CMOS ICs may often be marked as a 4000 series of chips
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