Chapter 6 Review. Memory

Transcription

1 Chapter 6 Review Memory Name Period Date Score Write your answers in the spaces provided at the end of the question. For fill-in-the-blank questions, provide the word or words needed to complete the sentence. 1. A typical computer system contains two types of memory, and. 2. RAM is the acronym for, and ROM is the acronym for. 3. A type of chip that is very similar to mask ROM is. 4. The acronym PROM represents. 5. EPROM is a type of electrical programmable memory that can be erased with light. 6. The requires an electrical charge of a higher voltage value to erase the electrically erasable programmed read only memory chip. 7. There are two major classifications of RAM: and. 8. RAM requires a constant refreshing of electrical energy to retain its information. 9. RAM does not require being refreshed to retain its information. 10. The acronym DRAM represents. 11. In the acronym SDRAM, the S represents ; this type of memory is much than DRAM. 12. The replacement for SDRAM is -SDRAM, which is an acronym for -synchronous dynamic random access memory. 13. RAM designed especially for video cards is called. 14. A special type of RAM developed to enhance Windows multimedia applications is called. 15. The acronym SGRAM represents RAM and is designed to move video data as large blocks of data. Copyright by Goodheart-Willcox Co., Inc. Continued Permission granted to reproduce for educational use only Chapter 6 Memory 105

2 Name 16. RDRAM was developed by RAMBUS and is made to reach speeds of MHz when used on a motherboard with a front side bus of MHz. 17. When installing RDRAM, the memory modules must be installed in pairs, or a(n) must be placed in the unused slot of the bank. 18. is the trade name for direct Rambus memory module. 19. RIMM modules must be installed as. 20. Laptop computers use a special DIMM with a smaller than normal outline and is called a(n) -DIMM or -RIMM. 21. The acronym FPM represents. 22. A small amount of high-speed memory that is typically incorporated into a device such as a CPU or hard drive is called. 23. The acronym SIMM represents. 24. The acronym DIMM represents. 25. are typically installed in pairs. 26. are typically installed in single units. 27. Memory chip speeds are typically measured in, which equal one of a second. 28. Parity is used to check data. 29. ECC is an acronym that represents. 30. A device, such as a chip, that is a temporary holding area for data transfers is called a(n). 31. The first 640 kb of RAM is called memory. 32. The size of upper memory area is kb. 33. The size of high memory area is kb. 34. The memory area above the upper memory area is called the. 35. The memory area beyond the first 1 MB is called the. 36. The high memory area is the first 64 kb of the. 37. mode supports multitasking and access to extended memory. 38 mode does not support multitasking. 39. A memory module with a tin edge connector should be used in a memory slot that is made of. 40. When a computer operates properly for a short period of time and then locks up, the problem may be caused by excessive. 106 Computer Service and Repair Instructor s Manual Copyright by Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only

3 For the A+ Certification exam, you should be able to identify the purpose and characteristics of memory types. You should also be able to select and install memory as well as identify techniques for troubleshooting memory. Practice 6.1 Identify the physical memory packages. DIMM RIMM SIP DIP SIMM SO-DIMM A. I " ~I «f " l.~1 B. Copyright by Goodheart-Willcox Co., Inc. 37

4 c. ~< 5.25"»\ ' o 01 1 ~:: l.66"»1 I ~ 2.625"-----;~ D. T \ ~ 4.25" >j I ~~~~~1 E. o [:::::::::::::::J[::::: ::::::::::] 0 0 F 38 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc.

5 Practice 6.2 Match the ROM type to its description. Name 1. EEPROM a. Can be programmed a limited amount of times and 2. EPROM an entire block of memory can be erased at one time with a high voltage. 3. Flash ROM b. Can only be programmed once. 4. PROM c. Can be programmed a limited amount of times and one bit at a time can be erased with electricity. Practice 6.3 d. Can be programmed a limited amount of times and be erased with an ultraviolet light. Match the memory type to its characteristics. Not all of the definitions will be used. 1. BEDO RAM a. Synchronizes the transfer of data with the CPU. 2. DDR1 b. Uses flip-flops to store information. 3. DDR2 c. A DDR module that transfers data twice as fast as 4. DDR3 SDRAM and operates at 2.5 volts. 5. dynamic RAM d. Uses capacitors to store information. e. Transfers data in groups or bursts of four memory addresses at a time. 7. SPD f. Transfers data using two busses between the north 8. SSD bridge and RAM. / SDRAM 9. static RAM g. A DDR module that operates at 1.8 volts to counter the heating effects of a high operating frequency. Practice 6.4 h. Storage system consisting entirely of DRAM chips. 1. A technology that uses an extra chip on a memory module that is used to identify the memory module. J. A DDR module that operates at 1.5 volts. Write out the name of each acronym. 1. BEDODRAM 2. DDRSDRAM 3. DRAM 4. EDODRAM 5. SDRAM 6. SPD 7. SSD Copyright by Goodheart-Willcox Co., Inc. Chapter 6 Memory 39

6 Practice 6.5 Match the memory characteristics to their definition. 1. buffer 2. error code correction (EEC) 3. even parity checking 4. fake parity 5. odd parity checking 6. parity 7. register memory Practice 6.6 Label the parts of the memory map. a. Transferring an extra bit every time the number of bits is even. b. A memory module that incorporates a registry chip to drive and synchronize itself without depending on the motherboard. c. An alternative form of data-integrity checking. d. A counting of odd or even bits being transmitted. e. Transferring an extra bit every time the number of bits is odd. f. An area temporarily used to store data before transferring it to a device. conventional extended memory upper memory memory high memory area g. Setting the parity bit to one regardless of the true number ones contained in the byte. 4GB o - A. - J 1 MB 1 64kB 384 kb 640kB B c. D. 40 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc.

7 Practice 6.7 Name Fill in the blanks for the statements about memory structure. DOS Windows 95 Windows 2000 Windows Vista Windows 3.x Windows NT WindowsXP 1. The restrictions of 1 MB are and The restrictions of 1 MB only apply to and later when 2. dealing with 16-bit software programs and legacy cards. 3. The following versions of Windows are not affected at all by 3. the 1 MB restriction: -f -f --' and. 4. The --',, and operating systems 4. handle memory as one big block called a heap. Practice 6.8 Fill in the blanks for the statements about real mode, protected mode, and safe mode. The following terms may be used more than once. protected mode real mode safe mode 1. The is designed on the DOS system of memory access The is accessed by pressing the [F8] key during the 2. startup or boot operation of all versions of Windows. 3. The includes all of real mode plus extended memory The will only load minimal drivers and limit the 4. memory access to the first 1 MB of RAM. 5. Multitasking can only occur in mode The is used for troubleshooting purposes. 6. Copyright by Goodheart-Willcox Co., Inc. Chapter 6 Memory 41

8 Practice 6.9 Fill in the blanks for the statements about troubleshooting memory. Not all of the terms will be used. conduction oxidation showmem wmdt heat page file System Properties mdsched removable storage virtual memory mem device wmdiag 1. One sign that the computer is running out of RAM and using 1. the is when there is a lot of hard disk drive activity. 2. When using the ReadyBoost feature to supplement memory, 2. the should be one to three times the amount of system RAM. 3. Entering in the Search box on the Start menu or at 3. the command prompt brings up the Windows Memory Diagnostics Tool. 4. For a quick check of how much memory is installed in a PC, 4. access 5. Using to view memory may give an inaccurate count 5. of system memory. 6. When two different types of metal are in contact with each 6. other, a condition occurs that causes increased. 7. A common symptom of excessive is the PC locking up 7. shortly after it has been powered on. 8. Constant errors on a computer can be caused by When troubleshooting -related problems, check fans, 9. clean filters, and remove dirt and dust. 42 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc.