Đang chuẩn bị liên kết để tải về tài liệu:
Fix your own computer for seniors for dummies- P13

Fix your own computer for seniors for dummies- P13: The way I look at being a senior is this: We got there ahead of the rest of the pack. Let those behind us get all excited over tweets and iPods and video games that simulate the challenges and joys of life. | Glossary setup A program used to store hardware configuration information in the CMOS chip of a modern machine. shadowing A method to improve performance of a computer by copying some or all of the contents of ROM to faster RAM. SIMM Single Inline Memory Modules are units that can hold a group of individual memory chips typically eight or nine in a single unit that plugs into a socket. A common current design is the 72-pin SIMM which can hold from 1 to 64MB delivered in a single 32-bit data path. single user An operating system that allows only one user to use the computer at a time. single user multitask A version of single user that allows only one user to perform multiple tasks simultaneously. Examples include OS 2 Windows 3.1 and VM 386. See also single user. single user single task A version of single user that allows only one user at a time to do one task at a time. DOS is an example. SRAM Static Random Access Memory chips that do not require refresh as long as they are powered. state Condition as in On-Off High-Low or Zero-One. In computers this means the particular way that all memory locations registers and logic gates are set. State is also used casually to indicate the particular condition and status of the computer. surface mount A circuit-board design in which chips are directly attached to the board instead of being soldered in pin holes or attached through sockets. In theory a surface mount design is less susceptible to problems caused by bad connections. However a failed chip often requires replacement of the entire circuit board. surge protector A device to protect electrical components from damage caused by overvoltage surges . A more sophisticated uninterruptible power supply UPS also protects against undervoltage brownouts and a short power outage. I 111345 Fix Your Own Computer For Seniors For Dummies system The memory in the computer that DOS or the chosen operating system can .