2nd Chapter: Installation Guide
2.1 Pre-Installation Preparation
1, collecting system data: In order to be able to successfully install and set up the Linux system, you must put the following information for the installation of the system to use:
HDD: Quantity, capacity and type;
Memory: The amount of memory installed on your computer;
CD-ROM: interface type (IDE, SCSI);
SCSI card: The model number of the card;
Network card: The model of the network card;
Mouse: The type of mouse (serial port,
This article is reproduced to: http://www.netinstructions.com/automating-picture-capture-using-webcams-on-linuxubuntu/
If it's a USB webcam, plug it in. If it ' s a integrated webcam built into the laptop, there ' s nothing to plug in. Ubuntu should automatically detect and install drivers for the webcam. To the if it ' s detected, let's run some commands:
Here's a command to the device nodes exist:
stephen@ubuntu:~$ ls-l/dev/video*
crw-rw----+ 1 root video bayi, 0 Mar 20:29/dev/video0
crw
Article title: Embedded Linux applications: technical features of the ARM architecture. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
When developing and designing the first ARM chip, some machines at that time, such as Digital PDP-8, Cray-1, and IBM 801, proposed the concept, in addition, there are many characteristics in the future development of the serv
When developing and designing the first ARM chip, some machines at that time, such as Digital PDP-8, Cray-1, and IBM 801, proposed the concept, in addition, there have been many characteristics of the back-up development. However, the only example of the back-up stage is the Berkeley's risc I and II and Stanford's MIPSMicroprocessor without Interlocking Pipeline Stages ), they were only used for teaching and research.
The ARM processor is the first one developed for commercial purposes. The arch
concept corresponding to ISA is microarchitecture, which is an implementation of the former. For example, many Intel processors follow the ISA of X86, however, each processor has its own microarchitecture. ISA is like a design specification, while micro-architecture is a specific implementation. The same Isa, different micro-architectures will bring different performance.1.2.1 CISC and RISC
According to ISA, there are two types of computers: The Complex Instruction Set Computer (CISC: Complex I
1: I don't want to go offline in my desktop. So I went to a certain East to buy a USB wireless network card. The WN725NUSB of tp is very small, which is about the same size as that of the Logitech USB adapter. 2: The driver can identify it by itself. since it is a usb Nic, after the USB is inserted, lsusb will see a new line of Realtek id0133: 8179root @ debian:/# lsusbBus00 added.
1: I don't want to go offline in my desktop. So I went to a certain Ea
Rev: 1028Type: Direct-Access ansi scsi revision: 053. How to obtain information about a usb deviceLsusbFor example:[Root @ localhost lhd] # lsusbBus 001 Device 001: ID 1d6b: 0002 Linux Foundation 2.0 root hubBus 004 Device 001: ID 1d6b: 0001 Linux Foundation 1.1 root hubBus 003 Device 002: ID 046d: c00f Logitech, Inc. MouseMan Traveler/MobileBus 003 Device 001: ID 1d6b: 0001 Linux Foundation 1.1 root hubBus 002 Device 001: ID 1d6b: 0001 Linux Foundat
Web browser. In addition, the reader is easily glued to the back of the rubber-coated finish.
Conclusion: Compared with previous versions, the new touchscreen Nook has been significantly improved, with a certain advantage over the 2010 Kindle.
5. Idealistic graduates will love Logitech's Wireless solar keyboard K760, an environmentally-friendly, practical keyboard that users can use to access Macs, ipads or iphones, and never have to worry about charging.
CNET Editor Rating: 4 st
, shut down the computer blue screen
1) Windows XP has bugs
Windows XP has a shutdown error, if your computer in the process of shutdown is often a blue screen shutdown, and the fault is intermittent, press the "Ctrl+alt+delete" button also has no response, then you can be sure that your system has not been patched accordingly. Please download SP1 patch pack on the patch, generally on it.
2 Innovative sound card drivers have problems
If you are using an innovative sound card and a blue scree
Reduced Instruction sets; CISC, Complex Instruction SetsThe CPU of the period is all in the CISC architecture. It is designed to complete the required computing tasks with the least number of machine language commands. For example, for multiplication, on the cpu Of the CISC architecture, you may need such a command: Mul addra, addrb can multiply the numbers in addra and addrb and store the results in addra. The operations of reading data from addra and addrb into registers, multiplication, and w
[From: an in-depth understanding of Linux kernel]
Linux tries to keep a clear line between hardware-independent source code and hardware-related source code. To achieve this, the arch and include directories contain 23 sub-directories to correspond to different hardware platforms supported by Linux. The standard names of these platforms are as follows:
Alpha
HP's Alpha workstation was first owned by digital, and later belongs to Compaq, which is no longer produced.
Arm, arm26
ARM-based computer
ARM microprocessor Overview
Introduction to this chapterArmSome basic concepts, application fields, and features of microprocessor help readersArmTechnology Hall.Main content of this chapter:-ArmAnd Related Technologies-ArmApplication fields and features of Microprocessor-ArmMicroprocessor Series-ArmArchitecture of Microprocessor-ArmApplication Selection of Microprocessor1.1Arm-Advanced RISC MachinesArmIt can be regarded as a company name or a general name for a type of microprocessor, or a tech
stored separately, with independent addressing, independent access, and four bus sets. The separated program bus and Data Bus allow you to obtain the command words and operands simultaneously within one machine week, doubling the data throughput.
2. CISC and RISCCISC usually includes a complex data path and a microprogram controller. The microprogram controller consists of the microprogram memory, microprogram counter, and address selection logic. Each word in the microprogram memory represents
downloaded and installed immediately
Installation Process: Ubuntu 8.04 has been integrated with the saa7134 series TV card driver, so we do not need to complete it through complicated compilation. All you need to do is adjust the driver parameters.
1. Check the list to determine the "card" value and "tuner" value of your TV card.
CARD Value List
0-> UNKNOWN/GENERIC1-> Proteus Pro [philips reference design] [1131: 2001, 1131:]2-> LifeView FlyVIDEO3000
Thunderbolt and USB 3.0 interface, data transmission performance is very stable.
A good input device
Input device performance is also the key to improve office efficiency, you need to choose a good ergonomic design, feel comfortable keyboard or mouse, but also give priority to wireless models, because it can effectively avoid cable winding, reduce efficiency. As for the form of wireless transmission, usually using a 2.4GHZ USB receiver device compared to Bluetooth has a more stable performanc
, but the basic is to eliminate the old platform, for Yi Yuan tyrants computer, buy this high power consumption, not cost-effective computer, now really is not worth it!
8692 yuan Intel four Generation i7 single display machine configuration comment
Machine Price: 8692 yuan
Accessories name brand Model reference price (yuan)
Processor: Intel Core i7 4770¥1980
Radiator: Owl nh-d14¥599
Motherboard: Gigabyte ga-z87m-hd3¥999
RAM: Kingston DDR3 1600 8G single ¥440
HDD: Seagate Barracuda 2TB 6
purchase UVC cameras. UVC is an open standard with a well maintained drive, which is part of the kernel code. After inserting the camera, you can work without having to compile or install additional drivers. NON-UVC cameras usually does not work better than the UVC cameras, the former driver does not follow the general protocol, the need for each camera to make separate processing, which often requires a reverse engineering exploration process.To determine if a camera belongs to the UVC specifi
, usually caused by a driver or software with bugs.Solution: Please refer to the general solution-related items described earlier for troubleshooting.
31: 0x000000ceriver_unloaded_without_cancelling_pending_operationsError Analysis: usually caused by problematic drivers or system services.Solution: Please refer to the general solution-related items described earlier for troubleshooting.
32: 0x000000d1river_irql_not_less_or_equalError Analysis: it is usually caused by problematic drivers (for exa
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