Khi thấy máy tính thông báo ổ cứng hết dung lượng, cần làm: A. Tắt máy và chờ cho đến khi cán bộ kỹ thuật đến
B. Xóa các tập tin tạm trú trong máy tính và các tập tin trong thùng rác
C. Mua máy tính khác
D. Gọi hỗ trợ kỹ thuật đến xử lý vấn đề

Select the correct answer. what does it indicate when a website displays https instead of http? a. the website is secure. b. there is no secure sockets layer. c. the secure sockets layer is hidden. d. the website is not secure.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?

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