desktop computer operating system

1. First, return to the traditional desktop location of the WIN8 system, and then find the desktop "This computer" icon, and double-click to enter, and then you can open the Win8 System Explorer window, in the Open window, we click on the Selection menu bar in the Open Contr

1Hardware requirementsa a computerB a USB flash drive2Software Requirementsa software PowerISO to make USB boot diskBlinux image files for the operating system3InstallationPowerISO,and usePowerISOA installation PowerISOB Insert USB flash driveC Select PowerISO tool  make bootable U -DiskD Click to start until finished4Set the USB drive to start5Select InstallUbuntu6Type Select other7Original partition effect8Delete original partition9Assigning a

occupied resources. Loop wait: The process requesting resources forms a loop. Ii. deadlock Handling Policy The following methods are commonly used to handle deadlocks: Ignore deadlocks, check and restore deadlocks, avoid deadlocks, and prevent deadlocks. 1. Ignore deadlock The most typical deadlock ignore algorithm is the ostrich algorithm. 2. Deadlock Detection and recovery Deadlock Detection Method: 1). resource distribution chart Algorithm 2). Resource Matrix Method

1, after the boot screen screen missing operating system; 2, check the computer USB interface is inserted with mobile devices: U disk, mobile hard disk, check the optical drive whether there is a CD-ROM; 3, the U disk, CD-ROM after the restart of the computer. Can be forced to shut down, that is, hold the Star

osversioninfo os; os.dwosversioninfosize=sizeof(OSVERSIONINFO); GetVersionEx (OS); CString StrOS; if(Os.dwplatformid = =0) {StrOS="Win32"; } Else if(Os.dwplatformid = =1) { if(Os.dwminorversion = =0) StrOS ="Windows"; Else if(Os.dwminorversion = =Ten) StrOS ="Windows 98"; StrOS+=os.szcsdversion;} Else if(Os.dwplatformid = =2) { if(Os.dwmajorversion = =3) {StrOS="Windows NT 3.51"; } Else if(Os.dwmajorversion = =4) {StrOS="Windows NT 4.0"; } Else if(Os.dwmajorversion = =5) { if(Os.dwm

The five algorithms of computer operating system process scheduling are: 1. First come first service Algorithm 2. Short job priority algorithm 3. High response ratio precedence algorithm 4. Time slice Rotation Method 5. Multilevel Feedback Queue algorithm public class Jcdu { String name; int id; int enter_time; int ser_time; Jcdu () {} void SetName (String

Computer components: CPU (operator, controller, register, cache), memory (memory), input device, output device.Instruction set: The set of instructions that operations are performed on. Divided into: General instruction set and privileged instruction set.The minimum memory storage unit is byte (bytes). 1byte=8bitsThe 32-bit CPU (2^32) can access up to 4Gbyte of memory capacity.{The//32bits CPU can have a maximum of 4gbits changes.2^32 (BITS) =2^10*2^1

Process:(1) The classic concept of a process is an instance of a program in execution.(2) Each program in the system is running in the context of the process.(3) Context: consists of the state required for the proper operation of the program, which includes: the code and data stored in the memory, its stack, the general purpose Register,program counters, environment variables, and open file descriptors, and so on.The key abstraction that the process p

Dual-nic computer linux operating system multiple services reverse DNS resolution problem solution overview-Linux Enterprise Application-Linux server application information, the following is a detailed reading. Many Computers are installed with dual NICs. When connecting to the Intranet, many services may encounter connection timeout. The most likely reason is t

operationResource management functions: Process management, memory management, device management10. Events that cause process creationUser login, job scheduling, service delivery, application request11. Events that cause the process to block and wake upFailed to request shared resource to SystemWait for some sort of operation to completeNew data not yet arrivedWaiting for new tasks to arrive12, the synchronization mechanism should follow the rulesIdle let inBusy is waitingLimited waitThe right

1.ARM, MIPS, SPARC,CISC is a complex instruction set is the CISC, others are thin instruction set.The 2.IP data header takes the () byte order, in this byte order, from the low address to the high address 0x1234 representation is (C). big_endian,0x12 0x34 0 0 little_endian,0x34 0x12 0 0 big_endian,0 0 0x12 0x34 Little_endian, 0 0 0x34 0x12 Resolution: Big_endian: High in low address;Small-endian: status in Low address3. Host A and Host B has established a TCP connection, host A