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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
Address Latch Enable:-
Address Latch was Intel's way of limiting the number of pins on their early microprocessors, to limit the production cost.
Sadly this "feature" remained in Intel processor architecture for several generations, despite the fact that production cost was no longer an issue.
What it does: On the early processors there was an 8 bit bus acting both as an address and a data bus (to save pins). Then there was the ALE (Address Latch Enable) pin, that determined if the bus should act as data or address bus. This of course decreased the efficiency of the processor, because you had to switch back and forth between the two states, according to which bus was needed.
false
sometimes we want to select one of two input nibbles,In this case we use nibble multiplexers.
Yes. Jump off a Bridge
What parameters must be indentical between OSPF routers in order to form an adjacency?
Area ID
Timers
Stub Flag
Subnet Mask (excluding virtual links and Point-to-point links) and MTU are also important.
Multiplexing is where you represent more than one bit (byte, word, etc.) on one wire (bus, etc.) in different units of time.
In the Intel 8085, the low order address bus and the data bus are multiplexed, each with 8 bits shared on one 8 but bus. There are four strobes involved...
ALE, Address Latch Enable, means that the bus represents address information, specifically the low order address. External hardware is expected to strobe the bus on the falling edge of ALE. Actual address validity occurs somewhat before, around the one third point of ALE, depending on clock speed, so normally ALE is a passthrough strobe, giving external hardware a bit of extra time to decode the address.
WR-, Write Strobe, means that the bus represents data information to write to IO or memory. External hardware is expected to strobe the data on the rising edge of WR-. WR- is low for one and a half clock cycles, not counting wait cycles. The data bus is held valid for one half additional clock cycle in order to assure data setup and hold times.
RD-, Read Strobe, means that the bus represents data information to read from IO or memory. External hardware is expected to drive the data during RD- low, with the processor strobing the data one half clock cycle prior to RD- going high. RD- is held true (low) for one and a half clock cycles, not counting wait cycles. Note very carefully that the timing from ALE to data strobe point is not the same for write cycles versus read cycles. This is by design.
INTA-, Interrupt Acknowledge, means that the bus represents data information to read from an interrupt controller. External hardware is expected to drive the data during INTA- low, with the same timing as RD-, providing an interrupt vector, either an RST or a CALL instruction. This is in response to an INTR, Interrupt Request, signal.
Use the six-inch dollar bill to measure the room's volume (half-a-foot at a time). Place the jelly bean in the measuring cup then pour water from the bottle until it is fully submersed. Take note of the water level. Remove the jelly bean then take note of the reduced water level. Subtract one from the other, this will tell you the volume of a jelly bean. Divide this into the room's volume. This will tell you how many jelly beans will fit in the room.
Projecters show a larger version on a screen or blank wall of what you are either teaching or watching. For example when i went to my friends house she has a projecter and we watched 'Get Smart' on her big blank wall in her house and she projected it on this little machine that you put the DVD in and it comes out the lense.
Difference between L2 VPN and L3 VPN?
ما هي المعلومات التي كنت تبحث عنه؟
شعار PNG ZenMateZenMate VPNمراجعة 2022التحديث: 30 ديسمبر 2021
قم بزيارة ZenMate VPN
يسلط الضوء
خوادم مخصصة للبث وأنشطة التورنتبرنامج سهل الاستخدام وبسيطلا يعمل Netflix الأمريكي دائمًا8.1
نتيجة ZenMate VPN الخاصة بنا
سرعة
7.0
أمان
8.0
سهولة الاستخدام
9.0
الخوادم
8.5
مراجعة ZenMate VPN (2022) - خوادم البث المتخصصة
ZenMate VPN هي VPN تديرها شركة ZenGuard GmbH. يقع مقر شركة ZenGuard GmbH في برلين ، ألمانيا. في حين أن هذا البلد لديه بعض قوانين الخصوصية الصارمة ، فإن ألمانيا هي أيضًا جزء من تحالف "العيون الـ 14" ، والذي لا يكون دائمًا رائعًا لخصوصيتك. ومع ذلك ، يتوافق ZenMate مع اللائحة العامة لحماية البيانات (GDPR). يستخدم ZenMate أكثر من 47 مليون شخص في جميع أنحاء العالم وقد ظهر لأول مرة في السوق باعتباره شبكة VPN مجانية شهيرة. بدأها صديقان شابان أرادا ضمان الأمان والخصوصية والحرية عبر الإنترنت في جميع أنحاء العالم. لقد أرادوا التركيز على مستخدمي الإنترنت يوميًا ، حتى يتمكن الجميع من الوصول مجانًا إلى الإنترنت. بلغت هذه الفكرة ذروتها في إنشاء ZenMate VPN.
3ropb2i
GNU/Linux(same thing)
There's:
Red hat, Ubuntu, LFS(Linux from scratch) and many others
Diagnostic tool used to collect data on a LAN?
A network sniffer. It can be hardware based (dedicated device with it's own software) or software based (application running on a PC). An Internet gateway can collect information to bust the user by tracing back the computer name, IP address and who is logged in. A sniffer is used mostly to collect information to help diagnose errors suspectred coming from the lan/wan.
Production adds value to resources that already exist, by creating useful products.
== ==
What is the difference between time division multiplexing and space division multiplexing?
The difference is the way the data is separated and transmitted between two points.
In Space Division the data is separated physically i.e. the carrier medium is divided into different channels. This could be by using different wires, waveguides, optical cables, etc, or by frequency i.e. radio channel, carrier frequency.
Time Division uses the same channel in one of the above but different data is given a specific order and location in time for transmission.
e.g. Synchronsation followed by type (a) data, then type (b) data followed by a checksum. The whole process is repeated continuously until transfer is complete.
That is a MAC( Media Access Control ) address. Its the physically assigned hexadecimal address on a Network Interface Card. The first half indicates the manufacturer ID while the other half is the NIC ID
What is the most popular web server on the internet?
The most popular web server on the Internet is Apache, with approximate 46% of the total market share. The second most popular is IIS, with 22% of the market share. You can view monthly statistics on web server market share at the related link below.
Why do you need to encode a signal?
Encoding converts data in one format to another format. This is important in computer technolgoy, communications engineering, control engineering and signal processing.
Encoding is typically done to utilise one or more of the following advantages:
- Compression of data for more efficient data transfers or storage.
- Improve the quality of a transmission signal - digital encoding is often used to recude the effect of noise and signal attenuation.
- Remove unneeded information relative to the application (digital TV signals consider the quality of human vision and encode the signal accordingly - animals who can see at higher rates than us, such as birds, would be very unimpressed with what they see on the TV!)
- Convert data into a format to communicate with attached peripherals.
- Encrypt data for security reasons.
There are certain to be other uses, since the methods of encoding are so varied, but this should give you an idea of why it is an important process.
Why wont moms let there kids get on the computer?
Because of overprotection. Some people do not like technology. Some parents are overprotective. And some do not wish to expose their child to things they will eventually discover, such as pornography or racism.
Who is the father fiber optics?
It wasn't a one man effort, inventing fiber optics. Works were inspired by John Tyndall who first discovered light can travel an irregular path through glass. Alexander Graham Bell later contributed. Heinrich Lamm in 1930 put the first fiber optic cable together stranding cable together and sending a signal across the wire. There were many other people who helped improve it over the year.
Al Gore is not the father of Fiber Optic cables, in case you were wondering.
How many /64 subnets are available in a /48 prefix?
There are 65,536 subnets available in an IPv6 /48 block.
