Quiz #4: Hardware

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Completion

1. CPU stands for ________ ________ ________. Answer central processing unit
2. ALU stands for ________ ________ ________. Answer arithmetic logic unit
3. GPU stands for ________ ________ ________. Answer graphics processing unit
4. RAM stands for ________ ________ ________. Answer random access memory
5. ROM stands for ________ ________ ________. Answer read only memory
6. PDA stands for ________ ________ ________. Answer personal digital assistant
7. I/O stands for ________/________. Answer input/output
8. OCR stands for ________ ________ ________. Answer optical character recognition
9. MIPS stands for _______ ________ ________ ________. Answer million instructions per second
10. RSI stands for ________ ________ ________. Answer repetitive stress injury
11. MICR stands for _______ ________ ________ ________. Answer magnetic ink character recognition
12. CRT stands for ________ ________ ________. Answer cathode ray tube
13. LCD stands for ________ ________ ________. Answer liquid crystal display
14. DPI stands for ________ ________ ________. Answer dots per inch
15. USB stands for ________ ________ ________. Answer universal serial bus
16. RAID stands for _______ ________ ________ ________. Answer redundant array of independent disks
17. DASD stands for _______ ________ ________ ________. Answer direct access storage device
18. SSD stands for ________ ________ ________. Answer solid state disk
19. NAS stands for ________ ________ ________. Answer network-attached storage
20. SAN stands for ________ ________ ________. Answer storage area network

Short answer

21. What is a motherboard? Answer The motherboard is the main board of the computer to which all of the components connect.
22. What is a peripheral? Answer A peripheral is a device located off the motherboard which is controlled by the computer.
23. Define the word bus as it applies to computer hardware. Answer A bus is a set of communication lines (basically little wires) that carry instructions, data, and signals.
24. Name two keyboard layouts. Answer QWERTY (the old standard), and Dvorak (a newer, more efficient design).
25. Define the term ergonomic. Answer Ergonomic means something is designed for safety and comfort.
26. Define the term pixel. Answer Pixel stands for "picture element." It is the name given to the small dots that make up a vide display.
27. Describe the differences between primary and secondary memory. Note: The text refers to primary memory as internal memory, and secondary memory as external memory. Answer Primary memory is fast, in relatively short supply, expensive, and usually volatile. Secondary memory is slower, cheaper, and often in relatively large supply when compared to primary memory. Secondary memory is almost always non-volatile.
28. List five considerations when evaluating storage media. Answer Here are seven:
    • use of stored data
    • amount of stored data
    • speed
    • device size and portability
    • cost
    • reliability
    • life expectancy

Matching

Identify the letter of the choice that best matches the phrase or definition.

1. hardware
2. byte
3. software
4. multithreading
5. bit
6. multitasking
7. parallel processing
8. sequential access
9. direct (random) access
29. programs Answer C (software)
30. the physical components of a computer Answer A (hardware)
31. the ability to get to records in any order Answer I (direct access, random access)
32. the smallest unit of data in a computer Answer E (bit)
33. more than one processor operating at the same time Answer G (parallel processing)
34. running more than one program at a time Answer F (multitasking)
35. a grouping of eight bits Answer B (byte)
36. the ability to get to records one after the other (in order) Answer H (sequential access)
37. running more than one part of a single program Answer D (multithreading)