Atlanticfire:


Nice. I have been wondering how easy it will be to make microcontrollers to do some of the functions that are being done by todays smartphones.
Things like facial recognition, fingerprint recognition, 3 dimensional speed.

OP do you know about microcontrollers?

MrWraith:
Op I wanted to ask about CPU architecture especially RISC Based. Why is ARM the only prominent RISC SOC designer.? Given that they don't produce their designs, what's stopping Qualcomm, TSMC, Mediatek, Hisilicon etc from designing and manufacturing their own SOC. Every phone CPU is based on Cores designed ARM, is RISC intrinsically complex for new architecture ground up or has ARM patented the entire field stopping others from making head way? Cc atheistandproud

Mac2016:

It's been long I encountered a creepy high level of intelligence in Nigerian youth. What's your profession?

atheistandproud:
LOGIC GATES

A logic gate is a building block of a digital circuit. Most logic gates have two inputs and one output and are based on Boolean algebra. At any given moment, every terminal is in one of the two binary conditions false (high) or true (low). False represents 0, and true represents 1. Depending on the type of logic gate being used and the combination of inputs, the binary output will differ. A logic gate can be thought of like a light switch, wherein one position the output is off—0, and in another, it is on—1. Logic gates are commonly used in integrated circuits (IC).


Basic logic gates
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR.

When you break a CPU down to it’s smallest units, you get logic gates. Logic gates are built with transistors. A transistor is a small semi conductor that acts like a switch in a circuit. Inside logic gates, usually an on switch is 1 and an off switch is zero. But this can be arranged in different ways to produce different results.
There are basically two types of circuits inside the CPU. The buffer circuit where turning on a switch give 1 and the inverted circuit where turning on a switch will give you a zero. These 1s and 0s are used to generate data.

Let’s look at the “and gate”. The and gate has two inputs and one output. If both inputs are on then the output is on. If one input or both inputs are off then the output is off.

At the “or gate”, if both inputs are on, then the out put is on. If both inputs are off, then the output is off. If one input is on and the other is off, the output will be on.

Moving on to the Exclusive OR gate or “XOR” gate, if both inputs are off then the output is off. If both inputs are on then the output is off. If any of the input is on, then the output is on.

For the NAND (Not AND) gate, if both inputs are off, the output is on. If both inputs are on, the output is on. If either of both inputs are on then the output is on.

For the NOR gate (Not OR), both inputs are off, the output is on. If both inputs are on, the output is off. If either of both inputs are on then the output is off.

Finally for the XNOR (Exclusive Not OR) gate, both inputs are off, the output is on. If both inputs are on, the output is on. If either of both inputs are on then the output is off.

Next we can try building a simple adding machine with these gates. Using their 1 and O in binary calculation.

Tinyemeka:


You've just brought back fond memories of my CSC101 classes

Tinyemeka:


You've just brought back fond memories of my CSC101 classes

reigncalif1:


IF THERE is need for such because they were true octacore right ,,, can a dual quad core surport multi threading

Atlanticfire:


The knowledge that you refused to use

Atlanticfire:


Nice. I have been wondering how easy it will be to make microcontrollers to do some of the functions that are being done by todays smartphones.
Things like facial recognition, fingerprint recognition, 3 dimensional speed.

OP do you know about microcontrollers?

Tinyemeka:


You've just brought back fond memories of my CSC101 classes

Professorcplus:

Lol! Reminds me of this.

atheistandproud:


CSC people full here oh

atheistandproud:
LOGIC GATES

A logic gate is a building block of a digital circuit. Most logic gates have two inputs and one output and are based on Boolean algebra. At any given moment, every terminal is in one of the two binary conditions false (high) or true (low). False represents 0, and true represents 1. Depending on the type of logic gate being used and the combination of inputs, the binary output will differ. A logic gate can be thought of like a light switch, wherein one position the output is off—0, and in another, it is on—1. Logic gates are commonly used in integrated circuits (IC).


Basic logic gates
There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR.

When you break a CPU down to it’s smallest units, you get logic gates. Logic gates are built with transistors. A transistor is a small semi conductor that acts like a switch in a circuit. Inside logic gates, usually an on switch is 1 and an off switch is zero. But this can be arranged in different ways to produce different results.
There are basically two types of circuits inside the CPU. The buffer circuit where turning on a switch give 1 and the inverted circuit where turning on a switch will give you a zero. These 1s and 0s are used to generate data.

Let’s look at the “and gate”. The and gate has two inputs and one output. If both inputs are on then the output is on. If one input or both inputs are off then the output is off.

At the “or gate”, if both inputs are on, then the out put is on. If both inputs are off, then the output is off. If one input is on and the other is off, the output will be on.

Moving on to the Exclusive OR gate or “XOR” gate, if both inputs are off then the output is off. If both inputs are on then the output is off. If any of the input is on, then the output is on.

For the NAND (Not AND) gate, if both inputs are off, the output is on. If both inputs are on, the output is on. If either of both inputs are on then the output is on.

For the NOR gate (Not OR), both inputs are off, the output is on. If both inputs are on, the output is off. If either of both inputs are on then the output is off.

Finally for the XNOR (Exclusive Not OR) gate, both inputs are off, the output is on. If both inputs are on, the output is on. If either of both inputs are on then the output is off.

Next we can try building a simple adding machine with these gates. Using their 1 and O in binary calculation.

sammysneh:
Computer science & Electrical Enginering students can relate..

Coder2Client:
Seun is going to like this guy. They belong to the same belief.

Op you're indeed smart. Back then in my higher institution days, all these terms and more were taught but boyy don forget everything.

Netanya:
I don't understand o

nappy760:
Computer Engineering days...
If only our lecturers could bring this stuff down as well as you have done.

naijasensei:


Microcontrollers aren't as powerful as Microprocessors and CPUs, but I believe they "might be able to perform those functions" you listed. However, it might make more sense to use an SoC or a Single Board Computer (like the Raspberry Pi) for such purposes.

losdiose:


That's the same problem we had then


Na our coursemate wey dey understand at a go dey teach us before exams

atheistandproud:


The G series of the Helio line are gaming centric SoCs so yeah. It's good for gaming.

sunshineV:
how many mark prof?

atheistandproud:


I wrote it myself. I don't have a blog.

ORIJIN201:
You have a talent. Don't waste it on Nairaland. Dm me on WhatsApp, I have a business proposal for you. 080-2418-6918

Atlanticfire:


I was thinking along the line of the Raspberry Pi actually,

Can you build something on the Raspberry Pi that can perform such functions?

atheistandproud:


Multi threading is not yet available for RISC architecture sha.

Some apps can use it but others can't is what I mean.