These are the results for system 3 System 1 specifications Component Description Processor AMD Athlon XP 2500+ (Barton) RAM 1 GB Swap 6 GB Operating System Windows XP Professional R 1.7.1 affy 1.3.6 for 5 arrays Reading time is : 5.22 0.09 5.39 NA NA rma() : 17.7 0.11 18.17 NA NA expresso() : 111.07 0.41 112.33 NA NA Method 1 : 22.92 0.2 23.56 NA NA Method 2 : 116.29 0.5 117.72 NA NA Method 3 : 15.39 0.29 15.79 NA NA Method 4 : 15.06 0.02 15.19 NA NA for 10 arrays Reading time is : 9.73 0.14 9.99 NA NA rma() : 22.29 0.05 22.56 NA NA expresso() : 134.33 0.75 136.33 NA NA Method 1 : 32.02 0.19 32.55 NA NA Method 2 : 144.06 0.89 146.32 NA NA Method 3 : 28.19 0.48 28.91 NA NA Method 4 : 25.86 0.17 26.24 NA NA for 15 arrays Reading time is : 13.77 0.41 14.32 NA NA rma() : 29.63 0.04 29.98 NA NA expresso() : 172.5 1.55 203.08 NA NA Method 1 : 43.4 0.45 44.3 NA NA Method 2 : 186.27 1.96 217.4 NA NA Method 3 : 41.39 0.79 51.81 NA NA Method 4 : 37.56 0.21 38.09 NA NA for 20 arrays Reading time is : 17.78 0.74 41.12 NA NA rma() : 37.47 0.44 58.66 NA NA expresso() : 201.87 3.68 302.48 NA NA Method 1 : 55.25 1.18 99.78 NA NA Method 2 : 219.65 4.42 343.6 NA NA Method 3 : 54.32 1.7 82.12 NA NA Method 4 : 48.72 0.44 49.97 NA NA for 25 arrays Reading time is : 22.29 0.49 23.02 NA NA rma() : 46.27 0.1 46.9 NA NA expresso() : 242.04 3.8 347.39 NA NA Method 1 : 68.56 0.59 69.92 NA NA Method 2 : 264.33 4.29 370.41 NA NA Method 3 : 67.27 2.05 88.83 NA NA Method 4 : 59.67 0.49 61.68 NA NA for 30 arrays Reading time is : 26.45 0.68 27.38 NA NA rma() : 53.75 0.25 56.57 NA NA expresso() : 276.38 5.63 555.77 NA NA Method 1 : 80.2 0.93 83.95 NA NA Method 2 : 302.83 6.31 583.15 NA NA Method 3 : 80.9 2.82 168.94 NA NA Method 4 : 71.05 0.68 73.13 NA NA for 35 arrays Reading time is : 30.8 0.77 31.78 NA NA rma() : 61.63 0.09 62.3 NA NA Method 1 : 92.43 0.86 94.08 NA NA Method 3 : 93.65 1.68 96.71 NA NA Method 4 : 83.3 0.57 85.57 NA NA for 40 arrays Reading time is : 35.2 0.75 40.25 NA NA rma() : 69.46 0.19 70.69 NA NA Method 1 : 104.66 0.94 110.94 NA NA Method 3 : 107.46 1.61 109.75 NA NA Method 4 : 93.95 0.83 95.42 NA NA for 50 arrays Reading time is : 43.73 1.22 45.15 NA NA rma() : 84.46 0.27 85.43 NA NA Method 1 : 128.19 1.49 130.58 NA NA Method 3 : 133.03 2.55 137.22 NA NA Method 4 : 116.31 0.96 118.68 NA NA for 60 arrays Reading time is : 52.15 1.47 53.93 NA NA rma() : 98.67 0.77 118.61 NA NA Method 1 : 150.82 2.24 172.54 NA NA Method 3 : 158.94 3.17 166.36 NA NA Method 4 : 139.07 1.33 141.49 NA NA for 70 arrays Reading time is : 61.03 1.46 64.52 NA NA rma() : 113.85 0.69 142.54 NA NA Method 1 : 174.88 2.15 207.06 NA NA Method 3 : 184.95 4.34 218.14 NA NA Method 4 : 163.21 1.22 168.17 NA NA for 80 arrays Reading time is : 69.16 2.11 99.74 NA NA rma() : 130.35 3.56 284.27 NA NA Method 1 : 199.51 5.67 384.01 NA NA Method 3 : 211.1 4.9 253.03 NA NA Method 4 : 186.08 1.82 195.12 NA NA for 90 arrays Reading time is : 77.83 2.83 132.14 NA NA rma() : 149.28 3.44 558.42 NA NA Method 1 : 227.11 6.27 690.56 NA NA Method 3 : 240.15 6.29 333.43 NA NA Method 4 : 212.65 2.78 250.19 NA NA for 100 arrays Reading time is : 86.64 4.71 275.79 NA NA rma() : 167.24 5.61 448.99 NA NA Method 1 : 253.88 10.32 724.78 NA NA Method 3 : 269.63 9.12 441.18 NA NA Method 4 : 235.85 3.19 303.77 NA NA for 125 arrays Method 3 : 358.54 7.46 528.84 NA NA Method 4 : 294.18 3.45 601.93 NA NA for 150 arrays Method 3 : 414.57 9.07 506.53 NA NA Method 4 : 345.97 3.83 403.85 NA NA for 175 arrays Method 3 : 482.32 9.56 594.5 NA NA Method 4 : 405.91 6.67 537.17 NA NA for 200 arrays Method 3 : 549.26 12.56 738.45 NA NA Method 4 : 462.02 8.05 1055.84 NA NA