题目内容

Computer PerformanceA computer's performance is measured by how well it performs tasks. Good computers can perform work quickly with few resources. Users can use various criteria to evaluate computer ( 1 ).Response time - When a user enters data at a terminal, the computer responds. The amount of time the process takes is the response time. Computers with slow ( 2 ) times are inefficient and frustrating.Availability - A computer's availability is simply its ability to work at any given time. Most ( 3 ) need a computer that is available immediately, and at any time.Data transmission - A computer's ability to send and receive data quickly is important. The transmission rate is measured in bit/s, and is called bandwidth. Slow ( 4 ) leads to delays receiving information.Software implementation - A computer's compression ratio is how ( 5 ) it can make information. Its rates of data compression and decompression also affect its performance.

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