basic computer questions

necessary to find the hardware address of a router on the local area network through ARP, and then send the packet to this router so that the router forwards the packet to the next network. The rest of the work is done by the next network. the resolution from the IP address to the hardware address is automatic, and the user of the host is unaware of this address resolution process. The ARP protocol automatically resolves the IP address to the hardware address required by the link layer as long

Recently saw a lot of people in the game or open the software when prompted "XXXX Microsoft Basic class application has stopped working" this is mostly related to compatibility, the following small series for everyone to share under the several solutions to this situation, I hope to help. Method one; 1, right click on the program shortcut, in the menu bar select the "Properties" option 2, in the Pop-up Properties dialog box, click the a

Installation required-basic hardware knowledge! 　　It is undeniable that although the installation is quite simple, if you lack some basic knowledge, you may encounter many difficulties and even cause irreparable hardware damage. 1.Problems with PC accessories Before installation, We must purchase various accessories one by one. However, these accessories must be used in an organic manner. Specifically, you

values, each of which is called an element, can be any data type, can be a string, a number, or a sub-list. Used to hold multiple values.List creation: list_test=[' LHF ', ' OK 'OrList_test=list (' abc ')OrList_test=list ([' LHF ', ' OK ')Common actions for lists: IndexSlice Append append Overall add to original list go to u Delete Pop length Len slices Loops contains in inserting insertList of other actions: Index lookupCount Statistics numberExtend extensionRemove remov

is f (x,y) = 0 for points on the Circle, and F (x,y) >0 for dots outside of the circle, for Point F (x,y) D=f (M) =f (xp+1,yp-0.5) = (xp+1) hydrate (yp-0.5) 2-R2If the dD=f (xp+2,yp-0.5) = (xp+2) (yp-0.5) 2-r2=d+2xp+3If the d≥0, then should take P2 for the next pixel, and the next pixel discriminant isD=f (xp+2,yp-1.5) = (xp+2) hydrate (yp-1.5) 2-r2=d+2 (XP-YP) +5The first pixel we're talking about here is (0,r), and the initial value of discriminant D is:D0=f (1,r-0.5) =1.25-r "Algorithm Flowc

family. For example, the family names of the famous CIH virus are unified "CIH ", in addition, the family name of the recently popular wannacache worm is "Sasser ". A virus suffix is a variant of a virus. It is used to distinguish a variant of a specific family of viruses. Generally, 26 letters are used for representation, such as Worm. sasser. B Refers to B, a variant of the worm, which is generally referred to as "B variant" or "B variant ". If the virus has many variants (It also indicates t

Port concept: in network technology, Port has two meanings: one is physical Port, for example, ADSL Modem, Hub, switch, router is used to connect interfaces of other network equipment, such as RJ-45 port, SC port and so on. The second is the logical port, which generally refers to the port in the TCP/IP protocol. The port number ranges from 0 to 65535, for example, port 80 used to browse Web Services, port 21 for the FTP service. This article mainly summarizes the TCP/IP ports that are commonly

1. IntroductionWhat is a digital system?A digital system (or digital system) defines how a number is represented by a unique symbol.There are two types of digital systems: positional digital systems and non-positional digital systems.2. Position Digital SystemIn a positional digital system, the position that the symbol occupies in a number determines the value it represents.(1) Decimal System① integer② Real numbers(2) binary system① integer② Real numbers(3) Hex system① integer② Real numbers(4) O

I: Ii. Source Code Using system; using system. collections. generic; using system. LINQ; using system. text; using system. windows; using system. windows. controls; using system. windows. data; using system. windows. documents; using system. windows. input; using system. windows. media; using system. windows. media. imaging; using system. windows. navigation; using system. windows. shapes; using system. diagnostics; using system. runtime. interopservices; one-click lock for namespace shutdown {/

Note that the following examples are just a sample, and there are many other ways to implement Basic Syntax: input and output: Normal article-input question:As a freshman, more of you may first contact programming. So the input and output as a way of interaction, naturally is very important. So the first way we learn to input and output is to cin,cout these two functions. First of all, we have the first pose: int A; cin>>a;First define

information can only be read out, generally not written, even if the machine power outage, the data will not be lost. ROM is typically used to store basic computer programs and data, such as BIOS ROM. RAM indicates that random memory (Random Access Memory) indicates that data can be read from or written to. When the machine is powered off, the data stored in it is lost. The memory that we usually buy or up

On a desktop computer, the most basic hardware we can see is a monitor and a host, followed by a keyboard and mouse. Such a basic computer is complete. The host is divided into the following kinds of hardware: 1, motherboard, motherboard on the host is a plate, it is the computer